From 0dd16de38d31c58c5c28e619795560b246f5235d Mon Sep 17 00:00:00 2001 From: KennyLee Date: Sat, 16 Sep 2017 01:23:00 +0800 Subject: [PATCH] =?UTF-8?q?=E5=AE=8C=E5=96=84redis-ha=E6=B5=8B=E8=AF=95?= =?UTF-8?q?=E7=8E=AF=E5=A2=83?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- cadvisor/README.md | 4 + elk/elasticsearch/config/elasticsearch.yml | 5 + logstash-jdbc-es/README.md | 3 + redis/conf-ha/Dockerfile-master | 3 + redis/conf-ha/Dockerfile-sentinel | 3 + redis/conf-ha/Dockerfile-slave | 3 + redis/conf-ha/redis-master.conf | 1002 +------------------ redis/conf-ha/redis-slave1.conf | 1007 +------------------- redis/conf-ha/sentinel.conf | 198 +--- redis/docker-compose-ha.yml | 68 +- 10 files changed, 91 insertions(+), 2205 deletions(-) create mode 100644 logstash-jdbc-es/README.md create mode 100644 redis/conf-ha/Dockerfile-master create mode 100644 redis/conf-ha/Dockerfile-sentinel create mode 100644 redis/conf-ha/Dockerfile-slave diff --git a/cadvisor/README.md b/cadvisor/README.md index 0253ea0..d1e0b43 100644 --- a/cadvisor/README.md +++ b/cadvisor/README.md @@ -35,4 +35,8 @@ There is also an official Go client implementation in the client directory. See see also https://hub.docker.com/r/google/cadvisor-canary/ +----- + +注意修改本地映射的 `--volume=/var/lib/docker/:/var/lib/docker:ro` + diff --git a/elk/elasticsearch/config/elasticsearch.yml b/elk/elasticsearch/config/elasticsearch.yml index b3f96bb..c186da1 100644 --- a/elk/elasticsearch/config/elasticsearch.yml +++ b/elk/elasticsearch/config/elasticsearch.yml @@ -24,3 +24,8 @@ xpack.monitoring.enabled: false xpack.ml.enabled: false xpack.graph.enabled: false xpack.watcher.enabled: false + +http.cors.enabled : true +http.cors.allow-origin : "*" +http.cors.allow-methods : OPTIONS, HEAD, GET, POST +http.cors.allow-headers : X-Requested-With, Content-Type, Content-Length diff --git a/logstash-jdbc-es/README.md b/logstash-jdbc-es/README.md new file mode 100644 index 0000000..8de7b06 --- /dev/null +++ b/logstash-jdbc-es/README.md @@ -0,0 +1,3 @@ +# ElasticSearch+Logstash JDBC同步-实现搜索引擎功能 + + diff --git a/redis/conf-ha/Dockerfile-master b/redis/conf-ha/Dockerfile-master new file mode 100644 index 0000000..da93b9d --- /dev/null +++ b/redis/conf-ha/Dockerfile-master @@ -0,0 +1,3 @@ +FROM registry.cn-hangzhou.aliyuncs.com/kennylee/redis:3.2 + +COPY redis-master.conf /usr/local/etc/redis/redis.conf diff --git a/redis/conf-ha/Dockerfile-sentinel b/redis/conf-ha/Dockerfile-sentinel new file mode 100644 index 0000000..d01a029 --- /dev/null +++ b/redis/conf-ha/Dockerfile-sentinel @@ -0,0 +1,3 @@ +FROM registry.cn-hangzhou.aliyuncs.com/kennylee/redis:3.2 + +COPY sentinel.conf /usr/local/etc/redis/sentinel.conf diff --git a/redis/conf-ha/Dockerfile-slave b/redis/conf-ha/Dockerfile-slave new file mode 100644 index 0000000..88aa47f --- /dev/null +++ b/redis/conf-ha/Dockerfile-slave @@ -0,0 +1,3 @@ +FROM registry.cn-hangzhou.aliyuncs.com/kennylee/redis:3.2 + +COPY redis-slave1.conf /usr/local/etc/redis/redis.conf diff --git a/redis/conf-ha/redis-master.conf b/redis/conf-ha/redis-master.conf index 934eaaf..9d59ad0 100644 --- a/redis/conf-ha/redis-master.conf +++ b/redis/conf-ha/redis-master.conf @@ -1,1054 +1,54 @@ -# Redis configuration file example. -# -# Note that in order to read the configuration file, Redis must be -# started with the file path as first argument: -# -# ./redis-server /path/to/redis.conf - -# Note on units: when memory size is needed, it is possible to specify -# it in the usual form of 1k 5GB 4M and so forth: -# -# 1k => 1000 bytes -# 1kb => 1024 bytes -# 1m => 1000000 bytes -# 1mb => 1024*1024 bytes -# 1g => 1000000000 bytes -# 1gb => 1024*1024*1024 bytes -# -# units are case insensitive so 1GB 1Gb 1gB are all the same. - -################################## INCLUDES ################################### - -# Include one or more other config files here. This is useful if you -# have a standard template that goes to all Redis servers but also need -# to customize a few per-server settings. Include files can include -# other files, so use this wisely. -# -# Notice option "include" won't be rewritten by command "CONFIG REWRITE" -# from admin or Redis Sentinel. Since Redis always uses the last processed -# line as value of a configuration directive, you'd better put includes -# at the beginning of this file to avoid overwriting config change at runtime. -# -# If instead you are interested in using includes to override configuration -# options, it is better to use include as the last line. -# -# include /path/to/local.conf -# include /path/to/other.conf - -################################## NETWORK ##################################### - -# By default, if no "bind" configuration directive is specified, Redis listens -# for connections from all the network interfaces available on the server. -# It is possible to listen to just one or multiple selected interfaces using -# the "bind" configuration directive, followed by one or more IP addresses. -# -# Examples: -# -# bind 192.168.1.100 10.0.0.1 -# bind 127.0.0.1 ::1 -# -# ~~~ WARNING ~~~ If the computer running Redis is directly exposed to the -# internet, binding to all the interfaces is dangerous and will expose the -# instance to everybody on the internet. So by default we uncomment the -# following bind directive, that will force Redis to listen only into -# the IPv4 lookback interface address (this means Redis will be able to -# accept connections only from clients running into the same computer it -# is running). -# -# IF YOU ARE SURE YOU WANT YOUR INSTANCE TO LISTEN TO ALL THE INTERFACES -# JUST COMMENT THE FOLLOWING LINE. -# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -# bind 127.0.0.1 - -# Protected mode is a layer of security protection, in order to avoid that -# Redis instances left open on the internet are accessed and exploited. -# -# When protected mode is on and if: -# -# 1) The server is not binding explicitly to a set of addresses using the -# "bind" directive. -# 2) No password is configured. -# -# The server only accepts connections from clients connecting from the -# IPv4 and IPv6 loopback addresses 127.0.0.1 and ::1, and from Unix domain -# sockets. -# -# By default protected mode is enabled. You should disable it only if -# you are sure you want clients from other hosts to connect to Redis -# even if no authentication is configured, nor a specific set of interfaces -# are explicitly listed using the "bind" directive. +#bind 127.0.0.1 protected-mode no - -# Accept connections on the specified port, default is 6379 (IANA #815344). -# If port 0 is specified Redis will not listen on a TCP socket. port 6379 - -# TCP listen() backlog. -# -# In high requests-per-second environments you need an high backlog in order -# to avoid slow clients connections issues. Note that the Linux kernel -# will silently truncate it to the value of /proc/sys/net/core/somaxconn so -# make sure to raise both the value of somaxconn and tcp_max_syn_backlog -# in order to get the desired effect. tcp-backlog 511 - -# Unix socket. -# -# Specify the path for the Unix socket that will be used to listen for -# incoming connections. There is no default, so Redis will not listen -# on a unix socket when not specified. -# -# unixsocket /tmp/redis.sock -# unixsocketperm 700 - -# Close the connection after a client is idle for N seconds (0 to disable) timeout 0 - -# TCP keepalive. -# -# If non-zero, use SO_KEEPALIVE to send TCP ACKs to clients in absence -# of communication. This is useful for two reasons: -# -# 1) Detect dead peers. -# 2) Take the connection alive from the point of view of network -# equipment in the middle. -# -# On Linux, the specified value (in seconds) is the period used to send ACKs. -# Note that to close the connection the double of the time is needed. -# On other kernels the period depends on the kernel configuration. -# -# A reasonable value for this option is 300 seconds, which is the new -# Redis default starting with Redis 3.2.1. tcp-keepalive 300 - -################################# GENERAL ##################################### - -# By default Redis does not run as a daemon. Use 'yes' if you need it. -# Note that Redis will write a pid file in /var/run/redis.pid when daemonized. daemonize no - -# If you run Redis from upstart or systemd, Redis can interact with your -# supervision tree. Options: -# supervised no - no supervision interaction -# supervised upstart - signal upstart by putting Redis into SIGSTOP mode -# supervised systemd - signal systemd by writing READY=1 to $NOTIFY_SOCKET -# supervised auto - detect upstart or systemd method based on -# UPSTART_JOB or NOTIFY_SOCKET environment variables -# Note: these supervision methods only signal "process is ready." -# They do not enable continuous liveness pings back to your supervisor. supervised no - -# If a pid file is specified, Redis writes it where specified at startup -# and removes it at exit. -# -# When the server runs non daemonized, no pid file is created if none is -# specified in the configuration. When the server is daemonized, the pid file -# is used even if not specified, defaulting to "/var/run/redis.pid". -# -# Creating a pid file is best effort: if Redis is not able to create it -# nothing bad happens, the server will start and run normally. pidfile "/var/run/redis_6379.pid" - -# Specify the server verbosity level. -# This can be one of: -# debug (a lot of information, useful for development/testing) -# verbose (many rarely useful info, but not a mess like the debug level) -# notice (moderately verbose, what you want in production probably) -# warning (only very important / critical messages are logged) loglevel notice - -# Specify the log file name. Also the empty string can be used to force -# Redis to log on the standard output. Note that if you use standard -# output for logging but daemonize, logs will be sent to /dev/null logfile "" - -# To enable logging to the system logger, just set 'syslog-enabled' to yes, -# and optionally update the other syslog parameters to suit your needs. -# syslog-enabled no - -# Specify the syslog identity. -# syslog-ident redis - -# Specify the syslog facility. Must be USER or between LOCAL0-LOCAL7. -# syslog-facility local0 - -# Set the number of databases. The default database is DB 0, you can select -# a different one on a per-connection basis using SELECT where -# dbid is a number between 0 and 'databases'-1 databases 16 - -################################ SNAPSHOTTING ################################ -# -# Save the DB on disk: -# -# save -# -# Will save the DB if both the given number of seconds and the given -# number of write operations against the DB occurred. -# -# In the example below the behaviour will be to save: -# after 900 sec (15 min) if at least 1 key changed -# after 300 sec (5 min) if at least 10 keys changed -# after 60 sec if at least 10000 keys changed -# -# Note: you can disable saving completely by commenting out all "save" lines. -# -# It is also possible to remove all the previously configured save -# points by adding a save directive with a single empty string argument -# like in the following example: -# -# save "" - save 900 1 save 300 10 save 60 10000 - -# By default Redis will stop accepting writes if RDB snapshots are enabled -# (at least one save point) and the latest background save failed. -# This will make the user aware (in a hard way) that data is not persisting -# on disk properly, otherwise chances are that no one will notice and some -# disaster will happen. -# -# If the background saving process will start working again Redis will -# automatically allow writes again. -# -# However if you have setup your proper monitoring of the Redis server -# and persistence, you may want to disable this feature so that Redis will -# continue to work as usual even if there are problems with disk, -# permissions, and so forth. stop-writes-on-bgsave-error yes - -# Compress string objects using LZF when dump .rdb databases? -# For default that's set to 'yes' as it's almost always a win. -# If you want to save some CPU in the saving child set it to 'no' but -# the dataset will likely be bigger if you have compressible values or keys. rdbcompression yes - -# Since version 5 of RDB a CRC64 checksum is placed at the end of the file. -# This makes the format more resistant to corruption but there is a performance -# hit to pay (around 10%) when saving and loading RDB files, so you can disable it -# for maximum performances. -# -# RDB files created with checksum disabled have a checksum of zero that will -# tell the loading code to skip the check. rdbchecksum yes - -# The filename where to dump the DB dbfilename "dump.rdb" - -# The working directory. -# -# The DB will be written inside this directory, with the filename specified -# above using the 'dbfilename' configuration directive. -# -# The Append Only File will also be created inside this directory. -# -# Note that you must specify a directory here, not a file name. dir "/data" - -################################# REPLICATION ################################# - -# Master-Slave replication. Use slaveof to make a Redis instance a copy of -# another Redis server. A few things to understand ASAP about Redis replication. -# -# 1) Redis replication is asynchronous, but you can configure a master to -# stop accepting writes if it appears to be not connected with at least -# a given number of slaves. -# 2) Redis slaves are able to perform a partial resynchronization with the -# master if the replication link is lost for a relatively small amount of -# time. You may want to configure the replication backlog size (see the next -# sections of this file) with a sensible value depending on your needs. -# 3) Replication is automatic and does not need user intervention. After a -# network partition slaves automatically try to reconnect to masters -# and resynchronize with them. -# -# slaveof - -# If the master is password protected (using the "requirepass" configuration -# directive below) it is possible to tell the slave to authenticate before -# starting the replication synchronization process, otherwise the master will -# refuse the slave request. -# -# masterauth - -# When a slave loses its connection with the master, or when the replication -# is still in progress, the slave can act in two different ways: -# -# 1) if slave-serve-stale-data is set to 'yes' (the default) the slave will -# still reply to client requests, possibly with out of date data, or the -# data set may just be empty if this is the first synchronization. -# -# 2) if slave-serve-stale-data is set to 'no' the slave will reply with -# an error "SYNC with master in progress" to all the kind of commands -# but to INFO and SLAVEOF. -# slave-serve-stale-data yes - -# You can configure a slave instance to accept writes or not. Writing against -# a slave instance may be useful to store some ephemeral data (because data -# written on a slave will be easily deleted after resync with the master) but -# may also cause problems if clients are writing to it because of a -# misconfiguration. -# -# Since Redis 2.6 by default slaves are read-only. -# -# Note: read only slaves are not designed to be exposed to untrusted clients -# on the internet. It's just a protection layer against misuse of the instance. -# Still a read only slave exports by default all the administrative commands -# such as CONFIG, DEBUG, and so forth. To a limited extent you can improve -# security of read only slaves using 'rename-command' to shadow all the -# administrative / dangerous commands. slave-read-only yes - -# Replication SYNC strategy: disk or socket. -# -# ------------------------------------------------------- -# WARNING: DISKLESS REPLICATION IS EXPERIMENTAL CURRENTLY -# ------------------------------------------------------- -# -# New slaves and reconnecting slaves that are not able to continue the replication -# process just receiving differences, need to do what is called a "full -# synchronization". An RDB file is transmitted from the master to the slaves. -# The transmission can happen in two different ways: -# -# 1) Disk-backed: The Redis master creates a new process that writes the RDB -# file on disk. Later the file is transferred by the parent -# process to the slaves incrementally. -# 2) Diskless: The Redis master creates a new process that directly writes the -# RDB file to slave sockets, without touching the disk at all. -# -# With disk-backed replication, while the RDB file is generated, more slaves -# can be queued and served with the RDB file as soon as the current child producing -# the RDB file finishes its work. With diskless replication instead once -# the transfer starts, new slaves arriving will be queued and a new transfer -# will start when the current one terminates. -# -# When diskless replication is used, the master waits a configurable amount of -# time (in seconds) before starting the transfer in the hope that multiple slaves -# will arrive and the transfer can be parallelized. -# -# With slow disks and fast (large bandwidth) networks, diskless replication -# works better. repl-diskless-sync no - -# When diskless replication is enabled, it is possible to configure the delay -# the server waits in order to spawn the child that transfers the RDB via socket -# to the slaves. -# -# This is important since once the transfer starts, it is not possible to serve -# new slaves arriving, that will be queued for the next RDB transfer, so the server -# waits a delay in order to let more slaves arrive. -# -# The delay is specified in seconds, and by default is 5 seconds. To disable -# it entirely just set it to 0 seconds and the transfer will start ASAP. repl-diskless-sync-delay 5 - -# Slaves send PINGs to server in a predefined interval. It's possible to change -# this interval with the repl_ping_slave_period option. The default value is 10 -# seconds. -# -# repl-ping-slave-period 10 - -# The following option sets the replication timeout for: -# -# 1) Bulk transfer I/O during SYNC, from the point of view of slave. -# 2) Master timeout from the point of view of slaves (data, pings). -# 3) Slave timeout from the point of view of masters (REPLCONF ACK pings). -# -# It is important to make sure that this value is greater than the value -# specified for repl-ping-slave-period otherwise a timeout will be detected -# every time there is low traffic between the master and the slave. -# -# repl-timeout 60 - -# Disable TCP_NODELAY on the slave socket after SYNC? -# -# If you select "yes" Redis will use a smaller number of TCP packets and -# less bandwidth to send data to slaves. But this can add a delay for -# the data to appear on the slave side, up to 40 milliseconds with -# Linux kernels using a default configuration. -# -# If you select "no" the delay for data to appear on the slave side will -# be reduced but more bandwidth will be used for replication. -# -# By default we optimize for low latency, but in very high traffic conditions -# or when the master and slaves are many hops away, turning this to "yes" may -# be a good idea. repl-disable-tcp-nodelay no - -# Set the replication backlog size. The backlog is a buffer that accumulates -# slave data when slaves are disconnected for some time, so that when a slave -# wants to reconnect again, often a full resync is not needed, but a partial -# resync is enough, just passing the portion of data the slave missed while -# disconnected. -# -# The bigger the replication backlog, the longer the time the slave can be -# disconnected and later be able to perform a partial resynchronization. -# -# The backlog is only allocated once there is at least a slave connected. -# -# repl-backlog-size 1mb - -# After a master has no longer connected slaves for some time, the backlog -# will be freed. The following option configures the amount of seconds that -# need to elapse, starting from the time the last slave disconnected, for -# the backlog buffer to be freed. -# -# A value of 0 means to never release the backlog. -# -# repl-backlog-ttl 3600 - -# The slave priority is an integer number published by Redis in the INFO output. -# It is used by Redis Sentinel in order to select a slave to promote into a -# master if the master is no longer working correctly. -# -# A slave with a low priority number is considered better for promotion, so -# for instance if there are three slaves with priority 10, 100, 25 Sentinel will -# pick the one with priority 10, that is the lowest. -# -# However a special priority of 0 marks the slave as not able to perform the -# role of master, so a slave with priority of 0 will never be selected by -# Redis Sentinel for promotion. -# -# By default the priority is 100. slave-priority 100 - -# It is possible for a master to stop accepting writes if there are less than -# N slaves connected, having a lag less or equal than M seconds. -# -# The N slaves need to be in "online" state. -# -# The lag in seconds, that must be <= the specified value, is calculated from -# the last ping received from the slave, that is usually sent every second. -# -# This option does not GUARANTEE that N replicas will accept the write, but -# will limit the window of exposure for lost writes in case not enough slaves -# are available, to the specified number of seconds. -# -# For example to require at least 3 slaves with a lag <= 10 seconds use: -# -# min-slaves-to-write 3 -# min-slaves-max-lag 10 -# -# Setting one or the other to 0 disables the feature. -# -# By default min-slaves-to-write is set to 0 (feature disabled) and -# min-slaves-max-lag is set to 10. - -# A Redis master is able to list the address and port of the attached -# slaves in different ways. For example the "INFO replication" section -# offers this information, which is used, among other tools, by -# Redis Sentinel in order to discover slave instances. -# Another place where this info is available is in the output of the -# "ROLE" command of a masteer. -# -# The listed IP and address normally reported by a slave is obtained -# in the following way: -# -# IP: The address is auto detected by checking the peer address -# of the socket used by the slave to connect with the master. -# -# Port: The port is communicated by the slave during the replication -# handshake, and is normally the port that the slave is using to -# list for connections. -# -# However when port forwarding or Network Address Translation (NAT) is -# used, the slave may be actually reachable via different IP and port -# pairs. The following two options can be used by a slave in order to -# report to its master a specific set of IP and port, so that both INFO -# and ROLE will report those values. -# -# There is no need to use both the options if you need to override just -# the port or the IP address. -# -# slave-announce-ip 5.5.5.5 -# slave-announce-port 1234 - -################################## SECURITY ################################### - -# Require clients to issue AUTH before processing any other -# commands. This might be useful in environments in which you do not trust -# others with access to the host running redis-server. -# -# This should stay commented out for backward compatibility and because most -# people do not need auth (e.g. they run their own servers). -# -# Warning: since Redis is pretty fast an outside user can try up to -# 150k passwords per second against a good box. This means that you should -# use a very strong password otherwise it will be very easy to break. -# -# requirepass foobared - -# Command renaming. -# -# It is possible to change the name of dangerous commands in a shared -# environment. For instance the CONFIG command may be renamed into something -# hard to guess so that it will still be available for internal-use tools -# but not available for general clients. -# -# Example: -# -# rename-command CONFIG b840fc02d524045429941cc15f59e41cb7be6c52 -# -# It is also possible to completely kill a command by renaming it into -# an empty string: -# -# rename-command CONFIG "" -# -# Please note that changing the name of commands that are logged into the -# AOF file or transmitted to slaves may cause problems. - -################################### LIMITS #################################### - -# Set the max number of connected clients at the same time. By default -# this limit is set to 10000 clients, however if the Redis server is not -# able to configure the process file limit to allow for the specified limit -# the max number of allowed clients is set to the current file limit -# minus 32 (as Redis reserves a few file descriptors for internal uses). -# -# Once the limit is reached Redis will close all the new connections sending -# an error 'max number of clients reached'. -# -# maxclients 10000 - -# Don't use more memory than the specified amount of bytes. -# When the memory limit is reached Redis will try to remove keys -# according to the eviction policy selected (see maxmemory-policy). -# -# If Redis can't remove keys according to the policy, or if the policy is -# set to 'noeviction', Redis will start to reply with errors to commands -# that would use more memory, like SET, LPUSH, and so on, and will continue -# to reply to read-only commands like GET. -# -# This option is usually useful when using Redis as an LRU cache, or to set -# a hard memory limit for an instance (using the 'noeviction' policy). -# -# WARNING: If you have slaves attached to an instance with maxmemory on, -# the size of the output buffers needed to feed the slaves are subtracted -# from the used memory count, so that network problems / resyncs will -# not trigger a loop where keys are evicted, and in turn the output -# buffer of slaves is full with DELs of keys evicted triggering the deletion -# of more keys, and so forth until the database is completely emptied. -# -# In short... if you have slaves attached it is suggested that you set a lower -# limit for maxmemory so that there is some free RAM on the system for slave -# output buffers (but this is not needed if the policy is 'noeviction'). -# -# maxmemory - -# MAXMEMORY POLICY: how Redis will select what to remove when maxmemory -# is reached. You can select among five behaviors: -# -# volatile-lru -> remove the key with an expire set using an LRU algorithm -# allkeys-lru -> remove any key according to the LRU algorithm -# volatile-random -> remove a random key with an expire set -# allkeys-random -> remove a random key, any key -# volatile-ttl -> remove the key with the nearest expire time (minor TTL) -# noeviction -> don't expire at all, just return an error on write operations -# -# Note: with any of the above policies, Redis will return an error on write -# operations, when there are no suitable keys for eviction. -# -# At the date of writing these commands are: set setnx setex append -# incr decr rpush lpush rpushx lpushx linsert lset rpoplpush sadd -# sinter sinterstore sunion sunionstore sdiff sdiffstore zadd zincrby -# zunionstore zinterstore hset hsetnx hmset hincrby incrby decrby -# getset mset msetnx exec sort -# -# The default is: -# -# maxmemory-policy noeviction - -# LRU and minimal TTL algorithms are not precise algorithms but approximated -# algorithms (in order to save memory), so you can tune it for speed or -# accuracy. For default Redis will check five keys and pick the one that was -# used less recently, you can change the sample size using the following -# configuration directive. -# -# The default of 5 produces good enough results. 10 Approximates very closely -# true LRU but costs a bit more CPU. 3 is very fast but not very accurate. -# -# maxmemory-samples 5 - -############################## APPEND ONLY MODE ############################### - -# By default Redis asynchronously dumps the dataset on disk. This mode is -# good enough in many applications, but an issue with the Redis process or -# a power outage may result into a few minutes of writes lost (depending on -# the configured save points). -# -# The Append Only File is an alternative persistence mode that provides -# much better durability. For instance using the default data fsync policy -# (see later in the config file) Redis can lose just one second of writes in a -# dramatic event like a server power outage, or a single write if something -# wrong with the Redis process itself happens, but the operating system is -# still running correctly. -# -# AOF and RDB persistence can be enabled at the same time without problems. -# If the AOF is enabled on startup Redis will load the AOF, that is the file -# with the better durability guarantees. -# -# Please check http://redis.io/topics/persistence for more information. - appendonly no - -# The name of the append only file (default: "appendonly.aof") - appendfilename "appendonly.aof" - -# The fsync() call tells the Operating System to actually write data on disk -# instead of waiting for more data in the output buffer. Some OS will really flush -# data on disk, some other OS will just try to do it ASAP. -# -# Redis supports three different modes: -# -# no: don't fsync, just let the OS flush the data when it wants. Faster. -# always: fsync after every write to the append only log. Slow, Safest. -# everysec: fsync only one time every second. Compromise. -# -# The default is "everysec", as that's usually the right compromise between -# speed and data safety. It's up to you to understand if you can relax this to -# "no" that will let the operating system flush the output buffer when -# it wants, for better performances (but if you can live with the idea of -# some data loss consider the default persistence mode that's snapshotting), -# or on the contrary, use "always" that's very slow but a bit safer than -# everysec. -# -# More details please check the following article: -# http://antirez.com/post/redis-persistence-demystified.html -# -# If unsure, use "everysec". - -# appendfsync always appendfsync everysec -# appendfsync no - -# When the AOF fsync policy is set to always or everysec, and a background -# saving process (a background save or AOF log background rewriting) is -# performing a lot of I/O against the disk, in some Linux configurations -# Redis may block too long on the fsync() call. Note that there is no fix for -# this currently, as even performing fsync in a different thread will block -# our synchronous write(2) call. -# -# In order to mitigate this problem it's possible to use the following option -# that will prevent fsync() from being called in the main process while a -# BGSAVE or BGREWRITEAOF is in progress. -# -# This means that while another child is saving, the durability of Redis is -# the same as "appendfsync none". In practical terms, this means that it is -# possible to lose up to 30 seconds of log in the worst scenario (with the -# default Linux settings). -# -# If you have latency problems turn this to "yes". Otherwise leave it as -# "no" that is the safest pick from the point of view of durability. - no-appendfsync-on-rewrite no - -# Automatic rewrite of the append only file. -# Redis is able to automatically rewrite the log file implicitly calling -# BGREWRITEAOF when the AOF log size grows by the specified percentage. -# -# This is how it works: Redis remembers the size of the AOF file after the -# latest rewrite (if no rewrite has happened since the restart, the size of -# the AOF at startup is used). -# -# This base size is compared to the current size. If the current size is -# bigger than the specified percentage, the rewrite is triggered. Also -# you need to specify a minimal size for the AOF file to be rewritten, this -# is useful to avoid rewriting the AOF file even if the percentage increase -# is reached but it is still pretty small. -# -# Specify a percentage of zero in order to disable the automatic AOF -# rewrite feature. - auto-aof-rewrite-percentage 100 auto-aof-rewrite-min-size 64mb - -# An AOF file may be found to be truncated at the end during the Redis -# startup process, when the AOF data gets loaded back into memory. -# This may happen when the system where Redis is running -# crashes, especially when an ext4 filesystem is mounted without the -# data=ordered option (however this can't happen when Redis itself -# crashes or aborts but the operating system still works correctly). -# -# Redis can either exit with an error when this happens, or load as much -# data as possible (the default now) and start if the AOF file is found -# to be truncated at the end. The following option controls this behavior. -# -# If aof-load-truncated is set to yes, a truncated AOF file is loaded and -# the Redis server starts emitting a log to inform the user of the event. -# Otherwise if the option is set to no, the server aborts with an error -# and refuses to start. When the option is set to no, the user requires -# to fix the AOF file using the "redis-check-aof" utility before to restart -# the server. -# -# Note that if the AOF file will be found to be corrupted in the middle -# the server will still exit with an error. This option only applies when -# Redis will try to read more data from the AOF file but not enough bytes -# will be found. aof-load-truncated yes - -################################ LUA SCRIPTING ############################### - -# Max execution time of a Lua script in milliseconds. -# -# If the maximum execution time is reached Redis will log that a script is -# still in execution after the maximum allowed time and will start to -# reply to queries with an error. -# -# When a long running script exceeds the maximum execution time only the -# SCRIPT KILL and SHUTDOWN NOSAVE commands are available. The first can be -# used to stop a script that did not yet called write commands. The second -# is the only way to shut down the server in the case a write command was -# already issued by the script but the user doesn't want to wait for the natural -# termination of the script. -# -# Set it to 0 or a negative value for unlimited execution without warnings. lua-time-limit 5000 - -################################ REDIS CLUSTER ############################### -# -# ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -# WARNING EXPERIMENTAL: Redis Cluster is considered to be stable code, however -# in order to mark it as "mature" we need to wait for a non trivial percentage -# of users to deploy it in production. -# ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -# -# Normal Redis instances can't be part of a Redis Cluster; only nodes that are -# started as cluster nodes can. In order to start a Redis instance as a -# cluster node enable the cluster support uncommenting the following: -# -# cluster-enabled yes - -# Every cluster node has a cluster configuration file. This file is not -# intended to be edited by hand. It is created and updated by Redis nodes. -# Every Redis Cluster node requires a different cluster configuration file. -# Make sure that instances running in the same system do not have -# overlapping cluster configuration file names. -# -# cluster-config-file nodes-6379.conf - -# Cluster node timeout is the amount of milliseconds a node must be unreachable -# for it to be considered in failure state. -# Most other internal time limits are multiple of the node timeout. -# -# cluster-node-timeout 15000 - -# A slave of a failing master will avoid to start a failover if its data -# looks too old. -# -# There is no simple way for a slave to actually have a exact measure of -# its "data age", so the following two checks are performed: -# -# 1) If there are multiple slaves able to failover, they exchange messages -# in order to try to give an advantage to the slave with the best -# replication offset (more data from the master processed). -# Slaves will try to get their rank by offset, and apply to the start -# of the failover a delay proportional to their rank. -# -# 2) Every single slave computes the time of the last interaction with -# its master. This can be the last ping or command received (if the master -# is still in the "connected" state), or the time that elapsed since the -# disconnection with the master (if the replication link is currently down). -# If the last interaction is too old, the slave will not try to failover -# at all. -# -# The point "2" can be tuned by user. Specifically a slave will not perform -# the failover if, since the last interaction with the master, the time -# elapsed is greater than: -# -# (node-timeout * slave-validity-factor) + repl-ping-slave-period -# -# So for example if node-timeout is 30 seconds, and the slave-validity-factor -# is 10, and assuming a default repl-ping-slave-period of 10 seconds, the -# slave will not try to failover if it was not able to talk with the master -# for longer than 310 seconds. -# -# A large slave-validity-factor may allow slaves with too old data to failover -# a master, while a too small value may prevent the cluster from being able to -# elect a slave at all. -# -# For maximum availability, it is possible to set the slave-validity-factor -# to a value of 0, which means, that slaves will always try to failover the -# master regardless of the last time they interacted with the master. -# (However they'll always try to apply a delay proportional to their -# offset rank). -# -# Zero is the only value able to guarantee that when all the partitions heal -# the cluster will always be able to continue. -# -# cluster-slave-validity-factor 10 - -# Cluster slaves are able to migrate to orphaned masters, that are masters -# that are left without working slaves. This improves the cluster ability -# to resist to failures as otherwise an orphaned master can't be failed over -# in case of failure if it has no working slaves. -# -# Slaves migrate to orphaned masters only if there are still at least a -# given number of other working slaves for their old master. This number -# is the "migration barrier". A migration barrier of 1 means that a slave -# will migrate only if there is at least 1 other working slave for its master -# and so forth. It usually reflects the number of slaves you want for every -# master in your cluster. -# -# Default is 1 (slaves migrate only if their masters remain with at least -# one slave). To disable migration just set it to a very large value. -# A value of 0 can be set but is useful only for debugging and dangerous -# in production. -# -# cluster-migration-barrier 1 - -# By default Redis Cluster nodes stop accepting queries if they detect there -# is at least an hash slot uncovered (no available node is serving it). -# This way if the cluster is partially down (for example a range of hash slots -# are no longer covered) all the cluster becomes, eventually, unavailable. -# It automatically returns available as soon as all the slots are covered again. -# -# However sometimes you want the subset of the cluster which is working, -# to continue to accept queries for the part of the key space that is still -# covered. In order to do so, just set the cluster-require-full-coverage -# option to no. -# -# cluster-require-full-coverage yes - -# In order to setup your cluster make sure to read the documentation -# available at http://redis.io web site. - -################################## SLOW LOG ################################### - -# The Redis Slow Log is a system to log queries that exceeded a specified -# execution time. The execution time does not include the I/O operations -# like talking with the client, sending the reply and so forth, -# but just the time needed to actually execute the command (this is the only -# stage of command execution where the thread is blocked and can not serve -# other requests in the meantime). -# -# You can configure the slow log with two parameters: one tells Redis -# what is the execution time, in microseconds, to exceed in order for the -# command to get logged, and the other parameter is the length of the -# slow log. When a new command is logged the oldest one is removed from the -# queue of logged commands. - -# The following time is expressed in microseconds, so 1000000 is equivalent -# to one second. Note that a negative number disables the slow log, while -# a value of zero forces the logging of every command. slowlog-log-slower-than 10000 - -# There is no limit to this length. Just be aware that it will consume memory. -# You can reclaim memory used by the slow log with SLOWLOG RESET. slowlog-max-len 128 - -################################ LATENCY MONITOR ############################## - -# The Redis latency monitoring subsystem samples different operations -# at runtime in order to collect data related to possible sources of -# latency of a Redis instance. -# -# Via the LATENCY command this information is available to the user that can -# print graphs and obtain reports. -# -# The system only logs operations that were performed in a time equal or -# greater than the amount of milliseconds specified via the -# latency-monitor-threshold configuration directive. When its value is set -# to zero, the latency monitor is turned off. -# -# By default latency monitoring is disabled since it is mostly not needed -# if you don't have latency issues, and collecting data has a performance -# impact, that while very small, can be measured under big load. Latency -# monitoring can easily be enabled at runtime using the command -# "CONFIG SET latency-monitor-threshold " if needed. latency-monitor-threshold 0 - -############################# EVENT NOTIFICATION ############################## - -# Redis can notify Pub/Sub clients about events happening in the key space. -# This feature is documented at http://redis.io/topics/notifications -# -# For instance if keyspace events notification is enabled, and a client -# performs a DEL operation on key "foo" stored in the Database 0, two -# messages will be published via Pub/Sub: -# -# PUBLISH __keyspace@0__:foo del -# PUBLISH __keyevent@0__:del foo -# -# It is possible to select the events that Redis will notify among a set -# of classes. Every class is identified by a single character: -# -# K Keyspace events, published with __keyspace@__ prefix. -# E Keyevent events, published with __keyevent@__ prefix. -# g Generic commands (non-type specific) like DEL, EXPIRE, RENAME, ... -# $ String commands -# l List commands -# s Set commands -# h Hash commands -# z Sorted set commands -# x Expired events (events generated every time a key expires) -# e Evicted events (events generated when a key is evicted for maxmemory) -# A Alias for g$lshzxe, so that the "AKE" string means all the events. -# -# The "notify-keyspace-events" takes as argument a string that is composed -# of zero or multiple characters. The empty string means that notifications -# are disabled. -# -# Example: to enable list and generic events, from the point of view of the -# event name, use: -# -# notify-keyspace-events Elg -# -# Example 2: to get the stream of the expired keys subscribing to channel -# name __keyevent@0__:expired use: -# -# notify-keyspace-events Ex -# -# By default all notifications are disabled because most users don't need -# this feature and the feature has some overhead. Note that if you don't -# specify at least one of K or E, no events will be delivered. notify-keyspace-events "" - -############################### ADVANCED CONFIG ############################### - -# Hashes are encoded using a memory efficient data structure when they have a -# small number of entries, and the biggest entry does not exceed a given -# threshold. These thresholds can be configured using the following directives. hash-max-ziplist-entries 512 hash-max-ziplist-value 64 - -# Lists are also encoded in a special way to save a lot of space. -# The number of entries allowed per internal list node can be specified -# as a fixed maximum size or a maximum number of elements. -# For a fixed maximum size, use -5 through -1, meaning: -# -5: max size: 64 Kb <-- not recommended for normal workloads -# -4: max size: 32 Kb <-- not recommended -# -3: max size: 16 Kb <-- probably not recommended -# -2: max size: 8 Kb <-- good -# -1: max size: 4 Kb <-- good -# Positive numbers mean store up to _exactly_ that number of elements -# per list node. -# The highest performing option is usually -2 (8 Kb size) or -1 (4 Kb size), -# but if your use case is unique, adjust the settings as necessary. list-max-ziplist-size -2 - -# Lists may also be compressed. -# Compress depth is the number of quicklist ziplist nodes from *each* side of -# the list to *exclude* from compression. The head and tail of the list -# are always uncompressed for fast push/pop operations. Settings are: -# 0: disable all list compression -# 1: depth 1 means "don't start compressing until after 1 node into the list, -# going from either the head or tail" -# So: [head]->node->node->...->node->[tail] -# [head], [tail] will always be uncompressed; inner nodes will compress. -# 2: [head]->[next]->node->node->...->node->[prev]->[tail] -# 2 here means: don't compress head or head->next or tail->prev or tail, -# but compress all nodes between them. -# 3: [head]->[next]->[next]->node->node->...->node->[prev]->[prev]->[tail] -# etc. list-compress-depth 0 - -# Sets have a special encoding in just one case: when a set is composed -# of just strings that happen to be integers in radix 10 in the range -# of 64 bit signed integers. -# The following configuration setting sets the limit in the size of the -# set in order to use this special memory saving encoding. set-max-intset-entries 512 - -# Similarly to hashes and lists, sorted sets are also specially encoded in -# order to save a lot of space. This encoding is only used when the length and -# elements of a sorted set are below the following limits: zset-max-ziplist-entries 128 zset-max-ziplist-value 64 - -# HyperLogLog sparse representation bytes limit. The limit includes the -# 16 bytes header. When an HyperLogLog using the sparse representation crosses -# this limit, it is converted into the dense representation. -# -# A value greater than 16000 is totally useless, since at that point the -# dense representation is more memory efficient. -# -# The suggested value is ~ 3000 in order to have the benefits of -# the space efficient encoding without slowing down too much PFADD, -# which is O(N) with the sparse encoding. The value can be raised to -# ~ 10000 when CPU is not a concern, but space is, and the data set is -# composed of many HyperLogLogs with cardinality in the 0 - 15000 range. hll-sparse-max-bytes 3000 - -# Active rehashing uses 1 millisecond every 100 milliseconds of CPU time in -# order to help rehashing the main Redis hash table (the one mapping top-level -# keys to values). The hash table implementation Redis uses (see dict.c) -# performs a lazy rehashing: the more operation you run into a hash table -# that is rehashing, the more rehashing "steps" are performed, so if the -# server is idle the rehashing is never complete and some more memory is used -# by the hash table. -# -# The default is to use this millisecond 10 times every second in order to -# actively rehash the main dictionaries, freeing memory when possible. -# -# If unsure: -# use "activerehashing no" if you have hard latency requirements and it is -# not a good thing in your environment that Redis can reply from time to time -# to queries with 2 milliseconds delay. -# -# use "activerehashing yes" if you don't have such hard requirements but -# want to free memory asap when possible. activerehashing yes - -# The client output buffer limits can be used to force disconnection of clients -# that are not reading data from the server fast enough for some reason (a -# common reason is that a Pub/Sub client can't consume messages as fast as the -# publisher can produce them). -# -# The limit can be set differently for the three different classes of clients: -# -# normal -> normal clients including MONITOR clients -# slave -> slave clients -# pubsub -> clients subscribed to at least one pubsub channel or pattern -# -# The syntax of every client-output-buffer-limit directive is the following: -# -# client-output-buffer-limit -# -# A client is immediately disconnected once the hard limit is reached, or if -# the soft limit is reached and remains reached for the specified number of -# seconds (continuously). -# So for instance if the hard limit is 32 megabytes and the soft limit is -# 16 megabytes / 10 seconds, the client will get disconnected immediately -# if the size of the output buffers reach 32 megabytes, but will also get -# disconnected if the client reaches 16 megabytes and continuously overcomes -# the limit for 10 seconds. -# -# By default normal clients are not limited because they don't receive data -# without asking (in a push way), but just after a request, so only -# asynchronous clients may create a scenario where data is requested faster -# than it can read. -# -# Instead there is a default limit for pubsub and slave clients, since -# subscribers and slaves receive data in a push fashion. -# -# Both the hard or the soft limit can be disabled by setting them to zero. client-output-buffer-limit normal 0 0 0 client-output-buffer-limit slave 256mb 64mb 60 client-output-buffer-limit pubsub 32mb 8mb 60 - -# Redis calls an internal function to perform many background tasks, like -# closing connections of clients in timeout, purging expired keys that are -# never requested, and so forth. -# -# Not all tasks are performed with the same frequency, but Redis checks for -# tasks to perform according to the specified "hz" value. -# -# By default "hz" is set to 10. Raising the value will use more CPU when -# Redis is idle, but at the same time will make Redis more responsive when -# there are many keys expiring at the same time, and timeouts may be -# handled with more precision. -# -# The range is between 1 and 500, however a value over 100 is usually not -# a good idea. Most users should use the default of 10 and raise this up to -# 100 only in environments where very low latency is required. hz 10 - -# When a child rewrites the AOF file, if the following option is enabled -# the file will be fsync-ed every 32 MB of data generated. This is useful -# in order to commit the file to the disk more incrementally and avoid -# big latency spikes. aof-rewrite-incremental-fsync yes # Generated by CONFIG REWRITE diff --git a/redis/conf-ha/redis-slave1.conf b/redis/conf-ha/redis-slave1.conf index 6b69cea..5fc5e82 100644 --- a/redis/conf-ha/redis-slave1.conf +++ b/redis/conf-ha/redis-slave1.conf @@ -1,1053 +1,58 @@ -# Redis configuration file example. -# -# Note that in order to read the configuration file, Redis must be -# started with the file path as first argument: -# -# ./redis-server /path/to/redis.conf - -# Note on units: when memory size is needed, it is possible to specify -# it in the usual form of 1k 5GB 4M and so forth: -# -# 1k => 1000 bytes -# 1kb => 1024 bytes -# 1m => 1000000 bytes -# 1mb => 1024*1024 bytes -# 1g => 1000000000 bytes -# 1gb => 1024*1024*1024 bytes -# -# units are case insensitive so 1GB 1Gb 1gB are all the same. - -################################## INCLUDES ################################### - -# Include one or more other config files here. This is useful if you -# have a standard template that goes to all Redis servers but also need -# to customize a few per-server settings. Include files can include -# other files, so use this wisely. -# -# Notice option "include" won't be rewritten by command "CONFIG REWRITE" -# from admin or Redis Sentinel. Since Redis always uses the last processed -# line as value of a configuration directive, you'd better put includes -# at the beginning of this file to avoid overwriting config change at runtime. -# -# If instead you are interested in using includes to override configuration -# options, it is better to use include as the last line. -# -# include /path/to/local.conf -# include /path/to/other.conf - -################################## NETWORK ##################################### - -# By default, if no "bind" configuration directive is specified, Redis listens -# for connections from all the network interfaces available on the server. -# It is possible to listen to just one or multiple selected interfaces using -# the "bind" configuration directive, followed by one or more IP addresses. -# -# Examples: -# -# bind 192.168.1.100 10.0.0.1 -# bind 127.0.0.1 ::1 -# -# ~~~ WARNING ~~~ If the computer running Redis is directly exposed to the -# internet, binding to all the interfaces is dangerous and will expose the -# instance to everybody on the internet. So by default we uncomment the -# following bind directive, that will force Redis to listen only into -# the IPv4 lookback interface address (this means Redis will be able to -# accept connections only from clients running into the same computer it -# is running). -# -# IF YOU ARE SURE YOU WANT YOUR INSTANCE TO LISTEN TO ALL THE INTERFACES -# JUST COMMENT THE FOLLOWING LINE. -# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -# bind 127.0.0.1 - -# Protected mode is a layer of security protection, in order to avoid that -# Redis instances left open on the internet are accessed and exploited. -# -# When protected mode is on and if: -# -# 1) The server is not binding explicitly to a set of addresses using the -# "bind" directive. -# 2) No password is configured. -# -# The server only accepts connections from clients connecting from the -# IPv4 and IPv6 loopback addresses 127.0.0.1 and ::1, and from Unix domain -# sockets. -# -# By default protected mode is enabled. You should disable it only if -# you are sure you want clients from other hosts to connect to Redis -# even if no authentication is configured, nor a specific set of interfaces -# are explicitly listed using the "bind" directive. +#bind 127.0.0.1 protected-mode no - -# Accept connections on the specified port, default is 6379 (IANA #815344). -# If port 0 is specified Redis will not listen on a TCP socket. port 6379 - -# TCP listen() backlog. -# -# In high requests-per-second environments you need an high backlog in order -# to avoid slow clients connections issues. Note that the Linux kernel -# will silently truncate it to the value of /proc/sys/net/core/somaxconn so -# make sure to raise both the value of somaxconn and tcp_max_syn_backlog -# in order to get the desired effect. tcp-backlog 511 - -# Unix socket. -# -# Specify the path for the Unix socket that will be used to listen for -# incoming connections. There is no default, so Redis will not listen -# on a unix socket when not specified. -# -# unixsocket /tmp/redis.sock -# unixsocketperm 700 - -# Close the connection after a client is idle for N seconds (0 to disable) timeout 0 - -# TCP keepalive. -# -# If non-zero, use SO_KEEPALIVE to send TCP ACKs to clients in absence -# of communication. This is useful for two reasons: -# -# 1) Detect dead peers. -# 2) Take the connection alive from the point of view of network -# equipment in the middle. -# -# On Linux, the specified value (in seconds) is the period used to send ACKs. -# Note that to close the connection the double of the time is needed. -# On other kernels the period depends on the kernel configuration. -# -# A reasonable value for this option is 300 seconds, which is the new -# Redis default starting with Redis 3.2.1. tcp-keepalive 300 - -################################# GENERAL ##################################### - -# By default Redis does not run as a daemon. Use 'yes' if you need it. -# Note that Redis will write a pid file in /var/run/redis.pid when daemonized. daemonize no - -# If you run Redis from upstart or systemd, Redis can interact with your -# supervision tree. Options: -# supervised no - no supervision interaction -# supervised upstart - signal upstart by putting Redis into SIGSTOP mode -# supervised systemd - signal systemd by writing READY=1 to $NOTIFY_SOCKET -# supervised auto - detect upstart or systemd method based on -# UPSTART_JOB or NOTIFY_SOCKET environment variables -# Note: these supervision methods only signal "process is ready." -# They do not enable continuous liveness pings back to your supervisor. supervised no - -# If a pid file is specified, Redis writes it where specified at startup -# and removes it at exit. -# -# When the server runs non daemonized, no pid file is created if none is -# specified in the configuration. When the server is daemonized, the pid file -# is used even if not specified, defaulting to "/var/run/redis.pid". -# -# Creating a pid file is best effort: if Redis is not able to create it -# nothing bad happens, the server will start and run normally. pidfile "/var/run/redis_6379.pid" - -# Specify the server verbosity level. -# This can be one of: -# debug (a lot of information, useful for development/testing) -# verbose (many rarely useful info, but not a mess like the debug level) -# notice (moderately verbose, what you want in production probably) -# warning (only very important / critical messages are logged) loglevel notice - -# Specify the log file name. Also the empty string can be used to force -# Redis to log on the standard output. Note that if you use standard -# output for logging but daemonize, logs will be sent to /dev/null logfile "" - -# To enable logging to the system logger, just set 'syslog-enabled' to yes, -# and optionally update the other syslog parameters to suit your needs. -# syslog-enabled no - -# Specify the syslog identity. -# syslog-ident redis - -# Specify the syslog facility. Must be USER or between LOCAL0-LOCAL7. -# syslog-facility local0 - -# Set the number of databases. The default database is DB 0, you can select -# a different one on a per-connection basis using SELECT where -# dbid is a number between 0 and 'databases'-1 databases 16 - -################################ SNAPSHOTTING ################################ -# -# Save the DB on disk: -# -# save -# -# Will save the DB if both the given number of seconds and the given -# number of write operations against the DB occurred. -# -# In the example below the behaviour will be to save: -# after 900 sec (15 min) if at least 1 key changed -# after 300 sec (5 min) if at least 10 keys changed -# after 60 sec if at least 10000 keys changed -# -# Note: you can disable saving completely by commenting out all "save" lines. -# -# It is also possible to remove all the previously configured save -# points by adding a save directive with a single empty string argument -# like in the following example: -# -# save "" - save 900 1 save 300 10 save 60 10000 - -# By default Redis will stop accepting writes if RDB snapshots are enabled -# (at least one save point) and the latest background save failed. -# This will make the user aware (in a hard way) that data is not persisting -# on disk properly, otherwise chances are that no one will notice and some -# disaster will happen. -# -# If the background saving process will start working again Redis will -# automatically allow writes again. -# -# However if you have setup your proper monitoring of the Redis server -# and persistence, you may want to disable this feature so that Redis will -# continue to work as usual even if there are problems with disk, -# permissions, and so forth. stop-writes-on-bgsave-error yes - -# Compress string objects using LZF when dump .rdb databases? -# For default that's set to 'yes' as it's almost always a win. -# If you want to save some CPU in the saving child set it to 'no' but -# the dataset will likely be bigger if you have compressible values or keys. rdbcompression yes - -# Since version 5 of RDB a CRC64 checksum is placed at the end of the file. -# This makes the format more resistant to corruption but there is a performance -# hit to pay (around 10%) when saving and loading RDB files, so you can disable it -# for maximum performances. -# -# RDB files created with checksum disabled have a checksum of zero that will -# tell the loading code to skip the check. rdbchecksum yes - -# The filename where to dump the DB dbfilename "dump.rdb" - -# The working directory. -# -# The DB will be written inside this directory, with the filename specified -# above using the 'dbfilename' configuration directive. -# -# The Append Only File will also be created inside this directory. -# -# Note that you must specify a directory here, not a file name. dir "/data" - -################################# REPLICATION ################################# - -# Master-Slave replication. Use slaveof to make a Redis instance a copy of -# another Redis server. A few things to understand ASAP about Redis replication. -# -# 1) Redis replication is asynchronous, but you can configure a master to -# stop accepting writes if it appears to be not connected with at least -# a given number of slaves. -# 2) Redis slaves are able to perform a partial resynchronization with the -# master if the replication link is lost for a relatively small amount of -# time. You may want to configure the replication backlog size (see the next -# sections of this file) with a sensible value depending on your needs. -# 3) Replication is automatic and does not need user intervention. After a -# network partition slaves automatically try to reconnect to masters -# and resynchronize with them. -# - -# If the master is password protected (using the "requirepass" configuration -# directive below) it is possible to tell the slave to authenticate before -# starting the replication synchronization process, otherwise the master will -# refuse the slave request. -# -# masterauth - -# When a slave loses its connection with the master, or when the replication -# is still in progress, the slave can act in two different ways: -# -# 1) if slave-serve-stale-data is set to 'yes' (the default) the slave will -# still reply to client requests, possibly with out of date data, or the -# data set may just be empty if this is the first synchronization. -# -# 2) if slave-serve-stale-data is set to 'no' the slave will reply with -# an error "SYNC with master in progress" to all the kind of commands -# but to INFO and SLAVEOF. -# slave-serve-stale-data yes - -# You can configure a slave instance to accept writes or not. Writing against -# a slave instance may be useful to store some ephemeral data (because data -# written on a slave will be easily deleted after resync with the master) but -# may also cause problems if clients are writing to it because of a -# misconfiguration. -# -# Since Redis 2.6 by default slaves are read-only. -# -# Note: read only slaves are not designed to be exposed to untrusted clients -# on the internet. It's just a protection layer against misuse of the instance. -# Still a read only slave exports by default all the administrative commands -# such as CONFIG, DEBUG, and so forth. To a limited extent you can improve -# security of read only slaves using 'rename-command' to shadow all the -# administrative / dangerous commands. slave-read-only yes - -# Replication SYNC strategy: disk or socket. -# -# ------------------------------------------------------- -# WARNING: DISKLESS REPLICATION IS EXPERIMENTAL CURRENTLY -# ------------------------------------------------------- -# -# New slaves and reconnecting slaves that are not able to continue the replication -# process just receiving differences, need to do what is called a "full -# synchronization". An RDB file is transmitted from the master to the slaves. -# The transmission can happen in two different ways: -# -# 1) Disk-backed: The Redis master creates a new process that writes the RDB -# file on disk. Later the file is transferred by the parent -# process to the slaves incrementally. -# 2) Diskless: The Redis master creates a new process that directly writes the -# RDB file to slave sockets, without touching the disk at all. -# -# With disk-backed replication, while the RDB file is generated, more slaves -# can be queued and served with the RDB file as soon as the current child producing -# the RDB file finishes its work. With diskless replication instead once -# the transfer starts, new slaves arriving will be queued and a new transfer -# will start when the current one terminates. -# -# When diskless replication is used, the master waits a configurable amount of -# time (in seconds) before starting the transfer in the hope that multiple slaves -# will arrive and the transfer can be parallelized. -# -# With slow disks and fast (large bandwidth) networks, diskless replication -# works better. repl-diskless-sync no - -# When diskless replication is enabled, it is possible to configure the delay -# the server waits in order to spawn the child that transfers the RDB via socket -# to the slaves. -# -# This is important since once the transfer starts, it is not possible to serve -# new slaves arriving, that will be queued for the next RDB transfer, so the server -# waits a delay in order to let more slaves arrive. -# -# The delay is specified in seconds, and by default is 5 seconds. To disable -# it entirely just set it to 0 seconds and the transfer will start ASAP. repl-diskless-sync-delay 5 - -# Slaves send PINGs to server in a predefined interval. It's possible to change -# this interval with the repl_ping_slave_period option. The default value is 10 -# seconds. -# -# repl-ping-slave-period 10 - -# The following option sets the replication timeout for: -# -# 1) Bulk transfer I/O during SYNC, from the point of view of slave. -# 2) Master timeout from the point of view of slaves (data, pings). -# 3) Slave timeout from the point of view of masters (REPLCONF ACK pings). -# -# It is important to make sure that this value is greater than the value -# specified for repl-ping-slave-period otherwise a timeout will be detected -# every time there is low traffic between the master and the slave. -# -# repl-timeout 60 - -# Disable TCP_NODELAY on the slave socket after SYNC? -# -# If you select "yes" Redis will use a smaller number of TCP packets and -# less bandwidth to send data to slaves. But this can add a delay for -# the data to appear on the slave side, up to 40 milliseconds with -# Linux kernels using a default configuration. -# -# If you select "no" the delay for data to appear on the slave side will -# be reduced but more bandwidth will be used for replication. -# -# By default we optimize for low latency, but in very high traffic conditions -# or when the master and slaves are many hops away, turning this to "yes" may -# be a good idea. repl-disable-tcp-nodelay no - -# Set the replication backlog size. The backlog is a buffer that accumulates -# slave data when slaves are disconnected for some time, so that when a slave -# wants to reconnect again, often a full resync is not needed, but a partial -# resync is enough, just passing the portion of data the slave missed while -# disconnected. -# -# The bigger the replication backlog, the longer the time the slave can be -# disconnected and later be able to perform a partial resynchronization. -# -# The backlog is only allocated once there is at least a slave connected. -# -# repl-backlog-size 1mb - -# After a master has no longer connected slaves for some time, the backlog -# will be freed. The following option configures the amount of seconds that -# need to elapse, starting from the time the last slave disconnected, for -# the backlog buffer to be freed. -# -# A value of 0 means to never release the backlog. -# -# repl-backlog-ttl 3600 - -# The slave priority is an integer number published by Redis in the INFO output. -# It is used by Redis Sentinel in order to select a slave to promote into a -# master if the master is no longer working correctly. -# -# A slave with a low priority number is considered better for promotion, so -# for instance if there are three slaves with priority 10, 100, 25 Sentinel will -# pick the one with priority 10, that is the lowest. -# -# However a special priority of 0 marks the slave as not able to perform the -# role of master, so a slave with priority of 0 will never be selected by -# Redis Sentinel for promotion. -# -# By default the priority is 100. slave-priority 100 - -# It is possible for a master to stop accepting writes if there are less than -# N slaves connected, having a lag less or equal than M seconds. -# -# The N slaves need to be in "online" state. -# -# The lag in seconds, that must be <= the specified value, is calculated from -# the last ping received from the slave, that is usually sent every second. -# -# This option does not GUARANTEE that N replicas will accept the write, but -# will limit the window of exposure for lost writes in case not enough slaves -# are available, to the specified number of seconds. -# -# For example to require at least 3 slaves with a lag <= 10 seconds use: -# -# min-slaves-to-write 3 -# min-slaves-max-lag 10 -# -# Setting one or the other to 0 disables the feature. -# -# By default min-slaves-to-write is set to 0 (feature disabled) and -# min-slaves-max-lag is set to 10. - -# A Redis master is able to list the address and port of the attached -# slaves in different ways. For example the "INFO replication" section -# offers this information, which is used, among other tools, by -# Redis Sentinel in order to discover slave instances. -# Another place where this info is available is in the output of the -# "ROLE" command of a masteer. -# -# The listed IP and address normally reported by a slave is obtained -# in the following way: -# -# IP: The address is auto detected by checking the peer address -# of the socket used by the slave to connect with the master. -# -# Port: The port is communicated by the slave during the replication -# handshake, and is normally the port that the slave is using to -# list for connections. -# -# However when port forwarding or Network Address Translation (NAT) is -# used, the slave may be actually reachable via different IP and port -# pairs. The following two options can be used by a slave in order to -# report to its master a specific set of IP and port, so that both INFO -# and ROLE will report those values. -# -# There is no need to use both the options if you need to override just -# the port or the IP address. -# -# slave-announce-ip 5.5.5.5 -# slave-announce-port 1234 - -################################## SECURITY ################################### - -# Require clients to issue AUTH before processing any other -# commands. This might be useful in environments in which you do not trust -# others with access to the host running redis-server. -# -# This should stay commented out for backward compatibility and because most -# people do not need auth (e.g. they run their own servers). -# -# Warning: since Redis is pretty fast an outside user can try up to -# 150k passwords per second against a good box. This means that you should -# use a very strong password otherwise it will be very easy to break. -# -# requirepass foobared - -# Command renaming. -# -# It is possible to change the name of dangerous commands in a shared -# environment. For instance the CONFIG command may be renamed into something -# hard to guess so that it will still be available for internal-use tools -# but not available for general clients. -# -# Example: -# -# rename-command CONFIG b840fc02d524045429941cc15f59e41cb7be6c52 -# -# It is also possible to completely kill a command by renaming it into -# an empty string: -# -# rename-command CONFIG "" -# -# Please note that changing the name of commands that are logged into the -# AOF file or transmitted to slaves may cause problems. - -################################### LIMITS #################################### - -# Set the max number of connected clients at the same time. By default -# this limit is set to 10000 clients, however if the Redis server is not -# able to configure the process file limit to allow for the specified limit -# the max number of allowed clients is set to the current file limit -# minus 32 (as Redis reserves a few file descriptors for internal uses). -# -# Once the limit is reached Redis will close all the new connections sending -# an error 'max number of clients reached'. -# -# maxclients 10000 - -# Don't use more memory than the specified amount of bytes. -# When the memory limit is reached Redis will try to remove keys -# according to the eviction policy selected (see maxmemory-policy). -# -# If Redis can't remove keys according to the policy, or if the policy is -# set to 'noeviction', Redis will start to reply with errors to commands -# that would use more memory, like SET, LPUSH, and so on, and will continue -# to reply to read-only commands like GET. -# -# This option is usually useful when using Redis as an LRU cache, or to set -# a hard memory limit for an instance (using the 'noeviction' policy). -# -# WARNING: If you have slaves attached to an instance with maxmemory on, -# the size of the output buffers needed to feed the slaves are subtracted -# from the used memory count, so that network problems / resyncs will -# not trigger a loop where keys are evicted, and in turn the output -# buffer of slaves is full with DELs of keys evicted triggering the deletion -# of more keys, and so forth until the database is completely emptied. -# -# In short... if you have slaves attached it is suggested that you set a lower -# limit for maxmemory so that there is some free RAM on the system for slave -# output buffers (but this is not needed if the policy is 'noeviction'). -# -# maxmemory - -# MAXMEMORY POLICY: how Redis will select what to remove when maxmemory -# is reached. You can select among five behaviors: -# -# volatile-lru -> remove the key with an expire set using an LRU algorithm -# allkeys-lru -> remove any key according to the LRU algorithm -# volatile-random -> remove a random key with an expire set -# allkeys-random -> remove a random key, any key -# volatile-ttl -> remove the key with the nearest expire time (minor TTL) -# noeviction -> don't expire at all, just return an error on write operations -# -# Note: with any of the above policies, Redis will return an error on write -# operations, when there are no suitable keys for eviction. -# -# At the date of writing these commands are: set setnx setex append -# incr decr rpush lpush rpushx lpushx linsert lset rpoplpush sadd -# sinter sinterstore sunion sunionstore sdiff sdiffstore zadd zincrby -# zunionstore zinterstore hset hsetnx hmset hincrby incrby decrby -# getset mset msetnx exec sort -# -# The default is: -# -# maxmemory-policy noeviction - -# LRU and minimal TTL algorithms are not precise algorithms but approximated -# algorithms (in order to save memory), so you can tune it for speed or -# accuracy. For default Redis will check five keys and pick the one that was -# used less recently, you can change the sample size using the following -# configuration directive. -# -# The default of 5 produces good enough results. 10 Approximates very closely -# true LRU but costs a bit more CPU. 3 is very fast but not very accurate. -# -# maxmemory-samples 5 - -############################## APPEND ONLY MODE ############################### - -# By default Redis asynchronously dumps the dataset on disk. This mode is -# good enough in many applications, but an issue with the Redis process or -# a power outage may result into a few minutes of writes lost (depending on -# the configured save points). -# -# The Append Only File is an alternative persistence mode that provides -# much better durability. For instance using the default data fsync policy -# (see later in the config file) Redis can lose just one second of writes in a -# dramatic event like a server power outage, or a single write if something -# wrong with the Redis process itself happens, but the operating system is -# still running correctly. -# -# AOF and RDB persistence can be enabled at the same time without problems. -# If the AOF is enabled on startup Redis will load the AOF, that is the file -# with the better durability guarantees. -# -# Please check http://redis.io/topics/persistence for more information. - appendonly no - -# The name of the append only file (default: "appendonly.aof") - appendfilename "appendonly.aof" - -# The fsync() call tells the Operating System to actually write data on disk -# instead of waiting for more data in the output buffer. Some OS will really flush -# data on disk, some other OS will just try to do it ASAP. -# -# Redis supports three different modes: -# -# no: don't fsync, just let the OS flush the data when it wants. Faster. -# always: fsync after every write to the append only log. Slow, Safest. -# everysec: fsync only one time every second. Compromise. -# -# The default is "everysec", as that's usually the right compromise between -# speed and data safety. It's up to you to understand if you can relax this to -# "no" that will let the operating system flush the output buffer when -# it wants, for better performances (but if you can live with the idea of -# some data loss consider the default persistence mode that's snapshotting), -# or on the contrary, use "always" that's very slow but a bit safer than -# everysec. -# -# More details please check the following article: -# http://antirez.com/post/redis-persistence-demystified.html -# -# If unsure, use "everysec". - -# appendfsync always appendfsync everysec -# appendfsync no - -# When the AOF fsync policy is set to always or everysec, and a background -# saving process (a background save or AOF log background rewriting) is -# performing a lot of I/O against the disk, in some Linux configurations -# Redis may block too long on the fsync() call. Note that there is no fix for -# this currently, as even performing fsync in a different thread will block -# our synchronous write(2) call. -# -# In order to mitigate this problem it's possible to use the following option -# that will prevent fsync() from being called in the main process while a -# BGSAVE or BGREWRITEAOF is in progress. -# -# This means that while another child is saving, the durability of Redis is -# the same as "appendfsync none". In practical terms, this means that it is -# possible to lose up to 30 seconds of log in the worst scenario (with the -# default Linux settings). -# -# If you have latency problems turn this to "yes". Otherwise leave it as -# "no" that is the safest pick from the point of view of durability. - no-appendfsync-on-rewrite no - -# Automatic rewrite of the append only file. -# Redis is able to automatically rewrite the log file implicitly calling -# BGREWRITEAOF when the AOF log size grows by the specified percentage. -# -# This is how it works: Redis remembers the size of the AOF file after the -# latest rewrite (if no rewrite has happened since the restart, the size of -# the AOF at startup is used). -# -# This base size is compared to the current size. If the current size is -# bigger than the specified percentage, the rewrite is triggered. Also -# you need to specify a minimal size for the AOF file to be rewritten, this -# is useful to avoid rewriting the AOF file even if the percentage increase -# is reached but it is still pretty small. -# -# Specify a percentage of zero in order to disable the automatic AOF -# rewrite feature. - auto-aof-rewrite-percentage 100 auto-aof-rewrite-min-size 64mb - -# An AOF file may be found to be truncated at the end during the Redis -# startup process, when the AOF data gets loaded back into memory. -# This may happen when the system where Redis is running -# crashes, especially when an ext4 filesystem is mounted without the -# data=ordered option (however this can't happen when Redis itself -# crashes or aborts but the operating system still works correctly). -# -# Redis can either exit with an error when this happens, or load as much -# data as possible (the default now) and start if the AOF file is found -# to be truncated at the end. The following option controls this behavior. -# -# If aof-load-truncated is set to yes, a truncated AOF file is loaded and -# the Redis server starts emitting a log to inform the user of the event. -# Otherwise if the option is set to no, the server aborts with an error -# and refuses to start. When the option is set to no, the user requires -# to fix the AOF file using the "redis-check-aof" utility before to restart -# the server. -# -# Note that if the AOF file will be found to be corrupted in the middle -# the server will still exit with an error. This option only applies when -# Redis will try to read more data from the AOF file but not enough bytes -# will be found. aof-load-truncated yes - -################################ LUA SCRIPTING ############################### - -# Max execution time of a Lua script in milliseconds. -# -# If the maximum execution time is reached Redis will log that a script is -# still in execution after the maximum allowed time and will start to -# reply to queries with an error. -# -# When a long running script exceeds the maximum execution time only the -# SCRIPT KILL and SHUTDOWN NOSAVE commands are available. The first can be -# used to stop a script that did not yet called write commands. The second -# is the only way to shut down the server in the case a write command was -# already issued by the script but the user doesn't want to wait for the natural -# termination of the script. -# -# Set it to 0 or a negative value for unlimited execution without warnings. lua-time-limit 5000 - -################################ REDIS CLUSTER ############################### -# -# ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -# WARNING EXPERIMENTAL: Redis Cluster is considered to be stable code, however -# in order to mark it as "mature" we need to wait for a non trivial percentage -# of users to deploy it in production. -# ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -# -# Normal Redis instances can't be part of a Redis Cluster; only nodes that are -# started as cluster nodes can. In order to start a Redis instance as a -# cluster node enable the cluster support uncommenting the following: -# -# cluster-enabled yes - -# Every cluster node has a cluster configuration file. This file is not -# intended to be edited by hand. It is created and updated by Redis nodes. -# Every Redis Cluster node requires a different cluster configuration file. -# Make sure that instances running in the same system do not have -# overlapping cluster configuration file names. -# -# cluster-config-file nodes-6379.conf - -# Cluster node timeout is the amount of milliseconds a node must be unreachable -# for it to be considered in failure state. -# Most other internal time limits are multiple of the node timeout. -# -# cluster-node-timeout 15000 - -# A slave of a failing master will avoid to start a failover if its data -# looks too old. -# -# There is no simple way for a slave to actually have a exact measure of -# its "data age", so the following two checks are performed: -# -# 1) If there are multiple slaves able to failover, they exchange messages -# in order to try to give an advantage to the slave with the best -# replication offset (more data from the master processed). -# Slaves will try to get their rank by offset, and apply to the start -# of the failover a delay proportional to their rank. -# -# 2) Every single slave computes the time of the last interaction with -# its master. This can be the last ping or command received (if the master -# is still in the "connected" state), or the time that elapsed since the -# disconnection with the master (if the replication link is currently down). -# If the last interaction is too old, the slave will not try to failover -# at all. -# -# The point "2" can be tuned by user. Specifically a slave will not perform -# the failover if, since the last interaction with the master, the time -# elapsed is greater than: -# -# (node-timeout * slave-validity-factor) + repl-ping-slave-period -# -# So for example if node-timeout is 30 seconds, and the slave-validity-factor -# is 10, and assuming a default repl-ping-slave-period of 10 seconds, the -# slave will not try to failover if it was not able to talk with the master -# for longer than 310 seconds. -# -# A large slave-validity-factor may allow slaves with too old data to failover -# a master, while a too small value may prevent the cluster from being able to -# elect a slave at all. -# -# For maximum availability, it is possible to set the slave-validity-factor -# to a value of 0, which means, that slaves will always try to failover the -# master regardless of the last time they interacted with the master. -# (However they'll always try to apply a delay proportional to their -# offset rank). -# -# Zero is the only value able to guarantee that when all the partitions heal -# the cluster will always be able to continue. -# -# cluster-slave-validity-factor 10 - -# Cluster slaves are able to migrate to orphaned masters, that are masters -# that are left without working slaves. This improves the cluster ability -# to resist to failures as otherwise an orphaned master can't be failed over -# in case of failure if it has no working slaves. -# -# Slaves migrate to orphaned masters only if there are still at least a -# given number of other working slaves for their old master. This number -# is the "migration barrier". A migration barrier of 1 means that a slave -# will migrate only if there is at least 1 other working slave for its master -# and so forth. It usually reflects the number of slaves you want for every -# master in your cluster. -# -# Default is 1 (slaves migrate only if their masters remain with at least -# one slave). To disable migration just set it to a very large value. -# A value of 0 can be set but is useful only for debugging and dangerous -# in production. -# -# cluster-migration-barrier 1 - -# By default Redis Cluster nodes stop accepting queries if they detect there -# is at least an hash slot uncovered (no available node is serving it). -# This way if the cluster is partially down (for example a range of hash slots -# are no longer covered) all the cluster becomes, eventually, unavailable. -# It automatically returns available as soon as all the slots are covered again. -# -# However sometimes you want the subset of the cluster which is working, -# to continue to accept queries for the part of the key space that is still -# covered. In order to do so, just set the cluster-require-full-coverage -# option to no. -# -# cluster-require-full-coverage yes - -# In order to setup your cluster make sure to read the documentation -# available at http://redis.io web site. - -################################## SLOW LOG ################################### - -# The Redis Slow Log is a system to log queries that exceeded a specified -# execution time. The execution time does not include the I/O operations -# like talking with the client, sending the reply and so forth, -# but just the time needed to actually execute the command (this is the only -# stage of command execution where the thread is blocked and can not serve -# other requests in the meantime). -# -# You can configure the slow log with two parameters: one tells Redis -# what is the execution time, in microseconds, to exceed in order for the -# command to get logged, and the other parameter is the length of the -# slow log. When a new command is logged the oldest one is removed from the -# queue of logged commands. - -# The following time is expressed in microseconds, so 1000000 is equivalent -# to one second. Note that a negative number disables the slow log, while -# a value of zero forces the logging of every command. slowlog-log-slower-than 10000 - -# There is no limit to this length. Just be aware that it will consume memory. -# You can reclaim memory used by the slow log with SLOWLOG RESET. slowlog-max-len 128 - -################################ LATENCY MONITOR ############################## - -# The Redis latency monitoring subsystem samples different operations -# at runtime in order to collect data related to possible sources of -# latency of a Redis instance. -# -# Via the LATENCY command this information is available to the user that can -# print graphs and obtain reports. -# -# The system only logs operations that were performed in a time equal or -# greater than the amount of milliseconds specified via the -# latency-monitor-threshold configuration directive. When its value is set -# to zero, the latency monitor is turned off. -# -# By default latency monitoring is disabled since it is mostly not needed -# if you don't have latency issues, and collecting data has a performance -# impact, that while very small, can be measured under big load. Latency -# monitoring can easily be enabled at runtime using the command -# "CONFIG SET latency-monitor-threshold " if needed. latency-monitor-threshold 0 - -############################# EVENT NOTIFICATION ############################## - -# Redis can notify Pub/Sub clients about events happening in the key space. -# This feature is documented at http://redis.io/topics/notifications -# -# For instance if keyspace events notification is enabled, and a client -# performs a DEL operation on key "foo" stored in the Database 0, two -# messages will be published via Pub/Sub: -# -# PUBLISH __keyspace@0__:foo del -# PUBLISH __keyevent@0__:del foo -# -# It is possible to select the events that Redis will notify among a set -# of classes. Every class is identified by a single character: -# -# K Keyspace events, published with __keyspace@__ prefix. -# E Keyevent events, published with __keyevent@__ prefix. -# g Generic commands (non-type specific) like DEL, EXPIRE, RENAME, ... -# $ String commands -# l List commands -# s Set commands -# h Hash commands -# z Sorted set commands -# x Expired events (events generated every time a key expires) -# e Evicted events (events generated when a key is evicted for maxmemory) -# A Alias for g$lshzxe, so that the "AKE" string means all the events. -# -# The "notify-keyspace-events" takes as argument a string that is composed -# of zero or multiple characters. The empty string means that notifications -# are disabled. -# -# Example: to enable list and generic events, from the point of view of the -# event name, use: -# -# notify-keyspace-events Elg -# -# Example 2: to get the stream of the expired keys subscribing to channel -# name __keyevent@0__:expired use: -# -# notify-keyspace-events Ex -# -# By default all notifications are disabled because most users don't need -# this feature and the feature has some overhead. Note that if you don't -# specify at least one of K or E, no events will be delivered. notify-keyspace-events "" - -############################### ADVANCED CONFIG ############################### - -# Hashes are encoded using a memory efficient data structure when they have a -# small number of entries, and the biggest entry does not exceed a given -# threshold. These thresholds can be configured using the following directives. hash-max-ziplist-entries 512 hash-max-ziplist-value 64 - -# Lists are also encoded in a special way to save a lot of space. -# The number of entries allowed per internal list node can be specified -# as a fixed maximum size or a maximum number of elements. -# For a fixed maximum size, use -5 through -1, meaning: -# -5: max size: 64 Kb <-- not recommended for normal workloads -# -4: max size: 32 Kb <-- not recommended -# -3: max size: 16 Kb <-- probably not recommended -# -2: max size: 8 Kb <-- good -# -1: max size: 4 Kb <-- good -# Positive numbers mean store up to _exactly_ that number of elements -# per list node. -# The highest performing option is usually -2 (8 Kb size) or -1 (4 Kb size), -# but if your use case is unique, adjust the settings as necessary. list-max-ziplist-size -2 - -# Lists may also be compressed. -# Compress depth is the number of quicklist ziplist nodes from *each* side of -# the list to *exclude* from compression. The head and tail of the list -# are always uncompressed for fast push/pop operations. Settings are: -# 0: disable all list compression -# 1: depth 1 means "don't start compressing until after 1 node into the list, -# going from either the head or tail" -# So: [head]->node->node->...->node->[tail] -# [head], [tail] will always be uncompressed; inner nodes will compress. -# 2: [head]->[next]->node->node->...->node->[prev]->[tail] -# 2 here means: don't compress head or head->next or tail->prev or tail, -# but compress all nodes between them. -# 3: [head]->[next]->[next]->node->node->...->node->[prev]->[prev]->[tail] -# etc. list-compress-depth 0 - -# Sets have a special encoding in just one case: when a set is composed -# of just strings that happen to be integers in radix 10 in the range -# of 64 bit signed integers. -# The following configuration setting sets the limit in the size of the -# set in order to use this special memory saving encoding. set-max-intset-entries 512 - -# Similarly to hashes and lists, sorted sets are also specially encoded in -# order to save a lot of space. This encoding is only used when the length and -# elements of a sorted set are below the following limits: zset-max-ziplist-entries 128 zset-max-ziplist-value 64 - -# HyperLogLog sparse representation bytes limit. The limit includes the -# 16 bytes header. When an HyperLogLog using the sparse representation crosses -# this limit, it is converted into the dense representation. -# -# A value greater than 16000 is totally useless, since at that point the -# dense representation is more memory efficient. -# -# The suggested value is ~ 3000 in order to have the benefits of -# the space efficient encoding without slowing down too much PFADD, -# which is O(N) with the sparse encoding. The value can be raised to -# ~ 10000 when CPU is not a concern, but space is, and the data set is -# composed of many HyperLogLogs with cardinality in the 0 - 15000 range. hll-sparse-max-bytes 3000 - -# Active rehashing uses 1 millisecond every 100 milliseconds of CPU time in -# order to help rehashing the main Redis hash table (the one mapping top-level -# keys to values). The hash table implementation Redis uses (see dict.c) -# performs a lazy rehashing: the more operation you run into a hash table -# that is rehashing, the more rehashing "steps" are performed, so if the -# server is idle the rehashing is never complete and some more memory is used -# by the hash table. -# -# The default is to use this millisecond 10 times every second in order to -# actively rehash the main dictionaries, freeing memory when possible. -# -# If unsure: -# use "activerehashing no" if you have hard latency requirements and it is -# not a good thing in your environment that Redis can reply from time to time -# to queries with 2 milliseconds delay. -# -# use "activerehashing yes" if you don't have such hard requirements but -# want to free memory asap when possible. activerehashing yes - -# The client output buffer limits can be used to force disconnection of clients -# that are not reading data from the server fast enough for some reason (a -# common reason is that a Pub/Sub client can't consume messages as fast as the -# publisher can produce them). -# -# The limit can be set differently for the three different classes of clients: -# -# normal -> normal clients including MONITOR clients -# slave -> slave clients -# pubsub -> clients subscribed to at least one pubsub channel or pattern -# -# The syntax of every client-output-buffer-limit directive is the following: -# -# client-output-buffer-limit -# -# A client is immediately disconnected once the hard limit is reached, or if -# the soft limit is reached and remains reached for the specified number of -# seconds (continuously). -# So for instance if the hard limit is 32 megabytes and the soft limit is -# 16 megabytes / 10 seconds, the client will get disconnected immediately -# if the size of the output buffers reach 32 megabytes, but will also get -# disconnected if the client reaches 16 megabytes and continuously overcomes -# the limit for 10 seconds. -# -# By default normal clients are not limited because they don't receive data -# without asking (in a push way), but just after a request, so only -# asynchronous clients may create a scenario where data is requested faster -# than it can read. -# -# Instead there is a default limit for pubsub and slave clients, since -# subscribers and slaves receive data in a push fashion. -# -# Both the hard or the soft limit can be disabled by setting them to zero. client-output-buffer-limit normal 0 0 0 client-output-buffer-limit slave 256mb 64mb 60 client-output-buffer-limit pubsub 32mb 8mb 60 - -# Redis calls an internal function to perform many background tasks, like -# closing connections of clients in timeout, purging expired keys that are -# never requested, and so forth. -# -# Not all tasks are performed with the same frequency, but Redis checks for -# tasks to perform according to the specified "hz" value. -# -# By default "hz" is set to 10. Raising the value will use more CPU when -# Redis is idle, but at the same time will make Redis more responsive when -# there are many keys expiring at the same time, and timeouts may be -# handled with more precision. -# -# The range is between 1 and 500, however a value over 100 is usually not -# a good idea. Most users should use the default of 10 and raise this up to -# 100 only in environments where very low latency is required. hz 10 - -# When a child rewrites the AOF file, if the following option is enabled -# the file will be fsync-ed every 32 MB of data generated. This is useful -# in order to commit the file to the disk more incrementally and avoid -# big latency spikes. aof-rewrite-incremental-fsync yes -# Generated by CONFIG REWRITE +# slave slaveof 172.16.238.10 6379 +slave-read-only yes +# Generated by CONFIG REWRITE + + diff --git a/redis/conf-ha/sentinel.conf b/redis/conf-ha/sentinel.conf index 9705f3a..ea93603 100644 --- a/redis/conf-ha/sentinel.conf +++ b/redis/conf-ha/sentinel.conf @@ -1,198 +1,14 @@ -# Example sentinel.conf - -# *** IMPORTANT *** -# -# By default Sentinel will not be reachable from interfaces different than -# localhost, either use the 'bind' directive to bind to a list of network -# interfaces, or disable protected mode with "protected-mode no" by -# adding it to this configuration file. -# -# Before doing that MAKE SURE the instance is protected from the outside -# world via firewalling or other means. -# -# For example you may use one of the following: -# -# bind 127.0.0.1 192.168.1.1 -# -# protected-mode no - -# port -# The port that this sentinel instance will run on port 26379 +dir /tmp +protected-mode no +sentinel monitor mymaster 172.16.238.10 6379 3 +sentinel down-after-milliseconds mymaster 30000 +sentinel parallel-syncs mymaster 1 +sentinel failover-timeout mymaster 180000 -# sentinel announce-ip -# sentinel announce-port -# -# The above two configuration directives are useful in environments where, -# because of NAT, Sentinel is reachable from outside via a non-local address. -# -# When announce-ip is provided, the Sentinel will claim the specified IP address -# in HELLO messages used to gossip its presence, instead of auto-detecting the -# local address as it usually does. -# -# Similarly when announce-port is provided and is valid and non-zero, Sentinel -# will announce the specified TCP port. -# -# The two options don't need to be used together, if only announce-ip is -# provided, the Sentinel will announce the specified IP and the server port -# as specified by the "port" option. If only announce-port is provided, the -# Sentinel will announce the auto-detected local IP and the specified port. -# -# Example: -# -# sentinel announce-ip 1.2.3.4 - -# dir -# Every long running process should have a well-defined working directory. -# For Redis Sentinel to chdir to /tmp at startup is the simplest thing -# for the process to don't interfere with administrative tasks such as -# unmounting filesystems. -dir "/tmp" - -# sentinel monitor -# -# Tells Sentinel to monitor this master, and to consider it in O_DOWN -# (Objectively Down) state only if at least sentinels agree. -# -# Note that whatever is the ODOWN quorum, a Sentinel will require to -# be elected by the majority of the known Sentinels in order to -# start a failover, so no failover can be performed in minority. -# -# Slaves are auto-discovered, so you don't need to specify slaves in -# any way. Sentinel itself will rewrite this configuration file adding -# the slaves using additional configuration options. -# Also note that the configuration file is rewritten when a -# slave is promoted to master. -# -# Note: master name should not include special characters or spaces. -# The valid charset is A-z 0-9 and the three characters ".-_". -sentinel myid 3819ea1ae43e1a64cd0020cae5c44380cc1b2ff1 - -# sentinel auth-pass -# -# Set the password to use to authenticate with the master and slaves. -# Useful if there is a password set in the Redis instances to monitor. -# -# Note that the master password is also used for slaves, so it is not -# possible to set a different password in masters and slaves instances -# if you want to be able to monitor these instances with Sentinel. -# -# However you can have Redis instances without the authentication enabled -# mixed with Redis instances requiring the authentication (as long as the -# password set is the same for all the instances requiring the password) as -# the AUTH command will have no effect in Redis instances with authentication -# switched off. -# -# Example: -# -# sentinel auth-pass mymaster MySUPER--secret-0123passw0rd - -# sentinel down-after-milliseconds -# -# Number of milliseconds the master (or any attached slave or sentinel) should -# be unreachable (as in, not acceptable reply to PING, continuously, for the -# specified period) in order to consider it in S_DOWN state (Subjectively -# Down). -# -# Default is 30 seconds. -sentinel monitor master-1 172.16.238.10 6379 1 - -# sentinel parallel-syncs -# -# How many slaves we can reconfigure to point to the new slave simultaneously -# during the failover. Use a low number if you use the slaves to serve query -# to avoid that all the slaves will be unreachable at about the same -# time while performing the synchronization with the master. -sentinel config-epoch master-1 2 - -# sentinel failover-timeout -# -# Specifies the failover timeout in milliseconds. It is used in many ways: -# -# - The time needed to re-start a failover after a previous failover was -# already tried against the same master by a given Sentinel, is two -# times the failover timeout. -# -# - The time needed for a slave replicating to a wrong master according -# to a Sentinel current configuration, to be forced to replicate -# with the right master, is exactly the failover timeout (counting since -# the moment a Sentinel detected the misconfiguration). -# -# - The time needed to cancel a failover that is already in progress but -# did not produced any configuration change (SLAVEOF NO ONE yet not -# acknowledged by the promoted slave). -# -# - The maximum time a failover in progress waits for all the slaves to be -# reconfigured as slaves of the new master. However even after this time -# the slaves will be reconfigured by the Sentinels anyway, but not with -# the exact parallel-syncs progression as specified. -# -# Default is 3 minutes. -sentinel leader-epoch master-1 2 - -# SCRIPTS EXECUTION -# -# sentinel notification-script and sentinel reconfig-script are used in order -# to configure scripts that are called to notify the system administrator -# or to reconfigure clients after a failover. The scripts are executed -# with the following rules for error handling: -# -# If script exits with "1" the execution is retried later (up to a maximum -# number of times currently set to 10). -# -# If script exits with "2" (or an higher value) the script execution is -# not retried. -# -# If script terminates because it receives a signal the behavior is the same -# as exit code 1. -# -# A script has a maximum running time of 60 seconds. After this limit is -# reached the script is terminated with a SIGKILL and the execution retried. - -# NOTIFICATION SCRIPT -# -# sentinel notification-script -# -# Call the specified notification script for any sentinel event that is -# generated in the WARNING level (for instance -sdown, -odown, and so forth). -# This script should notify the system administrator via email, SMS, or any -# other messaging system, that there is something wrong with the monitored -# Redis systems. -# -# The script is called with just two arguments: the first is the event type -# and the second the event description. -# -# The script must exist and be executable in order for sentinel to start if -# this option is provided. -# -# Example: -# -# sentinel notification-script mymaster /var/redis/notify.sh - -# CLIENTS RECONFIGURATION SCRIPT -# -# sentinel client-reconfig-script -# -# When the master changed because of a failover a script can be called in -# order to perform application-specific tasks to notify the clients that the -# configuration has changed and the master is at a different address. -# -# The following arguments are passed to the script: -# -# -# -# is currently always "failover" -# is either "leader" or "observer" -# -# The arguments from-ip, from-port, to-ip, to-port are used to communicate -# the old address of the master and the new address of the elected slave -# (now a master). -# # This script should be resistant to multiple invocations. # # Example: # # sentinel client-reconfig-script mymaster /var/redis/reconfig.sh -# Generated by CONFIG REWRITE -sentinel known-slave master-1 172.16.238.11 6379 -sentinel current-epoch 2 + diff --git a/redis/docker-compose-ha.yml b/redis/docker-compose-ha.yml index 3c63f13..a8512e3 100644 --- a/redis/docker-compose-ha.yml +++ b/redis/docker-compose-ha.yml @@ -10,24 +10,24 @@ networks: services: &master redis-master: - image: &image registry.cn-hangzhou.aliyuncs.com/kennylee/redis:3.2 + build: + context: ./conf-ha/ + dockerfile: Dockerfile-master container_name: "master" ports: - "6379:6379" - volumes: - - ./conf-ha/redis-master.conf:/usr/local/etc/redis/redis.conf restart: on-failure command: [ "redis-server", "/usr/local/etc/redis/redis.conf" ] networks: *network : ipv4_address: 172.16.238.10 redis-slave-1: - image: *image + build: + context: ./conf-ha/ + dockerfile: Dockerfile-slave container_name: "slave" ports: - "6380:6379" - volumes: - - ./conf-ha/redis-slave1.conf:/usr/local/etc/redis/redis.conf restart: on-failure command: [ "redis-server", "/usr/local/etc/redis/redis.conf" ] networks: @@ -35,20 +35,64 @@ services: ipv4_address: 172.16.238.11 depends_on: - *master - redis-sentinel: - image: *image - container_name: "sentinel" + redis-sentinel-1: + build: + context: ./conf-ha/ + dockerfile: Dockerfile-sentinel + container_name: "s1" ports: - "26379:26379" - volumes: - - ./conf-ha/sentinel.conf:/usr/local/etc/redis/sentinel.conf restart: on-failure command: [ "redis-sentinel", "/usr/local/etc/redis/sentinel.conf" ] networks: *network : - ipv4_address: 172.16.238.20 + ipv4_address: 172.16.238.21 + depends_on: + - *master + redis-sentinel-2: + build: + context: ./conf-ha/ + dockerfile: Dockerfile-sentinel + container_name: "s2" + ports: + - "26380:26379" + restart: on-failure + command: [ "redis-sentinel", "/usr/local/etc/redis/sentinel.conf" ] + networks: + *network : + ipv4_address: 172.16.238.22 + depends_on: + - *master + redis-sentinel-3: + build: + context: ./conf-ha/ + dockerfile: Dockerfile-sentinel + container_name: "s3" + ports: + - "26381:26379" + restart: on-failure + command: [ "redis-sentinel", "/usr/local/etc/redis/sentinel.conf" ] + networks: + *network : + ipv4_address: 172.16.238.23 + depends_on: + - *master + redis-sentinel-4: + build: + context: ./conf-ha/ + dockerfile: Dockerfile-sentinel + container_name: "s4" + ports: + - "26382:26379" + restart: on-failure + command: [ "redis-sentinel", "/usr/local/etc/redis/sentinel.conf" ] + networks: + *network : + ipv4_address: 172.16.238.24 depends_on: - *master + +