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gitea/tests/pgsql.ini.tmpl
wxiaoguang 6f9c278559
Rewrite queue (#24505) 
# ⚠️ Breaking

Many deprecated queue config options are removed (actually, they should
have been removed in 1.18/1.19).

If you see the fatal message when starting Gitea: "Please update your
app.ini to remove deprecated config options", please follow the error
messages to remove these options from your app.ini.

Example:

```
2023/05/06 19:39:22 [E] Removed queue option: `[indexer].ISSUE_INDEXER_QUEUE_TYPE`. Use new options in `[queue.issue_indexer]`
2023/05/06 19:39:22 [E] Removed queue option: `[indexer].UPDATE_BUFFER_LEN`. Use new options in `[queue.issue_indexer]`
2023/05/06 19:39:22 [F] Please update your app.ini to remove deprecated config options
```

Many options in `[queue]` are are dropped, including:
`WRAP_IF_NECESSARY`, `MAX_ATTEMPTS`, `TIMEOUT`, `WORKERS`,
`BLOCK_TIMEOUT`, `BOOST_TIMEOUT`, `BOOST_WORKERS`, they can be removed
from app.ini.

# The problem

The old queue package has some legacy problems:

* complexity: I doubt few people could tell how it works.
* maintainability: Too many channels and mutex/cond are mixed together,
too many different structs/interfaces depends each other.
* stability: due to the complexity & maintainability, sometimes there
are strange bugs and difficult to debug, and some code doesn't have test
(indeed some code is difficult to test because a lot of things are mixed
together).
* general applicability: although it is called "queue", its behavior is
not a well-known queue.
* scalability: it doesn't seem easy to make it work with a cluster
without breaking its behaviors.

It came from some very old code to "avoid breaking", however, its
technical debt is too heavy now. It's a good time to introduce a better
"queue" package.

# The new queue package

It keeps using old config and concept as much as possible.

* It only contains two major kinds of concepts:
    * The "base queue": channel, levelqueue, redis
* They have the same abstraction, the same interface, and they are
tested by the same testing code.
* The "WokerPoolQueue", it uses the "base queue" to provide "worker
pool" function, calls the "handler" to process the data in the base
queue.
* The new code doesn't do "PushBack"
* Think about a queue with many workers, the "PushBack" can't guarantee
the order for re-queued unhandled items, so in new code it just does
"normal push"
* The new code doesn't do "pause/resume"
* The "pause/resume" was designed to handle some handler's failure: eg:
document indexer (elasticsearch) is down
* If a queue is paused for long time, either the producers blocks or the
new items are dropped.
* The new code doesn't do such "pause/resume" trick, it's not a common
queue's behavior and it doesn't help much.
* If there are unhandled items, the "push" function just blocks for a
few seconds and then re-queue them and retry.
* The new code doesn't do "worker booster"
* Gitea's queue's handlers are light functions, the cost is only the
go-routine, so it doesn't make sense to "boost" them.
* The new code only use "max worker number" to limit the concurrent
workers.
* The new "Push" never blocks forever
* Instead of creating more and more blocking goroutines, return an error
is more friendly to the server and to the end user.

There are more details in code comments: eg: the "Flush" problem, the
strange "code.index" hanging problem, the "immediate" queue problem.

Almost ready for review.

TODO:

* [x] add some necessary comments during review
* [x] add some more tests if necessary
* [x] update documents and config options
* [x] test max worker / active worker
* [x] re-run the CI tasks to see whether any test is flaky
* [x] improve the `handleOldLengthConfiguration` to provide more
friendly messages
* [x] fine tune default config values (eg: length?)

## Code coverage:

![image](https://user-images.githubusercontent.com/2114189/236620635-55576955-f95d-4810-b12f-879026a3afdf.png)
2023-05-08 19:49:59 +08:00

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APP_NAME = Gitea: Git with a cup of tea
RUN_MODE = prod
[database]
DB_TYPE = postgres
HOST = {{TEST_PGSQL_HOST}}
NAME = {{TEST_PGSQL_DBNAME}}
USER = {{TEST_PGSQL_USERNAME}}
PASSWD = {{TEST_PGSQL_PASSWORD}}
SCHEMA = {{TEST_PGSQL_SCHEMA}}
SSL_MODE = disable
[indexer]
REPO_INDEXER_ENABLED = true
REPO_INDEXER_PATH = tests/{{TEST_TYPE}}/gitea-{{TEST_TYPE}}-pgsql/indexers/repos.bleve
[queue.issue_indexer]
TYPE = level
DATADIR = tests/{{TEST_TYPE}}/gitea-{{TEST_TYPE}}-pgsql/indexers/issues.queue
[queue]
TYPE = immediate
[queue.code_indexer]
TYPE = immediate
[queue.push_update]
TYPE = immediate
[repository]
ROOT = {{REPO_TEST_DIR}}tests/{{TEST_TYPE}}/gitea-{{TEST_TYPE}}-pgsql/gitea-repositories
[repository.local]
LOCAL_COPY_PATH = tests/{{TEST_TYPE}}/gitea-{{TEST_TYPE}}-pgsql/tmp/local-repo
[repository.upload]
TEMP_PATH = tests/{{TEST_TYPE}}/gitea-{{TEST_TYPE}}-pgsql/tmp/uploads
[repository.signing]
SIGNING_KEY = none
[server]
SSH_DOMAIN = localhost
HTTP_PORT = 3002
ROOT_URL = http://localhost:3002/
DISABLE_SSH = false
SSH_LISTEN_HOST = localhost
SSH_PORT = 2202
START_SSH_SERVER = true
LFS_START_SERVER = true
OFFLINE_MODE = false
LFS_JWT_SECRET = Tv_MjmZuHqpIY6GFl12ebgkRAMt4RlWt0v4EHKSXO0w
APP_DATA_PATH = tests/{{TEST_TYPE}}/gitea-{{TEST_TYPE}}-pgsql/data
BUILTIN_SSH_SERVER_USER = git
SSH_TRUSTED_USER_CA_KEYS = ssh-rsa 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
[attachment]
PATH = tests/{{TEST_TYPE}}/gitea-{{TEST_TYPE}}-pgsql/data/attachments
[mailer]
ENABLED = true
MAILER_TYPE = dummy
FROM = pgsql-{{TEST_TYPE}}-test@gitea.io
[service]
REGISTER_EMAIL_CONFIRM = false
REGISTER_MANUAL_CONFIRM = false
ENABLE_NOTIFY_MAIL = false
DISABLE_REGISTRATION = false
ENABLE_CAPTCHA = false
REQUIRE_SIGNIN_VIEW = false
DEFAULT_KEEP_EMAIL_PRIVATE = false
DEFAULT_ALLOW_CREATE_ORGANIZATION = true
NO_REPLY_ADDRESS = noreply.example.org
ENABLE_NOTIFY_MAIL = true
[picture]
DISABLE_GRAVATAR = false
ENABLE_FEDERATED_AVATAR = false
AVATAR_UPLOAD_PATH = tests/{{TEST_TYPE}}/gitea-{{TEST_TYPE}}-pgsql/data/avatars
REPOSITORY_AVATAR_UPLOAD_PATH = tests/{{TEST_TYPE}}/gitea-{{TEST_TYPE}}-pgsql/data/repo-avatars
[session]
PROVIDER = file
PROVIDER_CONFIG = tests/{{TEST_TYPE}}/gitea-{{TEST_TYPE}}-pgsql/data/sessions
[log]
MODE = {{TEST_LOGGER}}
ROOT_PATH = {{REPO_TEST_DIR}}pgsql-log
ROUTER = ,
XORM = file
ENABLE_SSH_LOG = true
[log.test]
LEVEL = Info
COLORIZE = true
[log.file]
LEVEL = Debug
[security]
DISABLE_GIT_HOOKS = false
INSTALL_LOCK = true
SECRET_KEY = 9pCviYTWSb
INTERNAL_TOKEN = eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJuYmYiOjE0OTU1NTE2MTh9.hhSVGOANkaKk3vfCd2jDOIww4pUk0xtg9JRde5UogyQ
[lfs]
MINIO_BASE_PATH = lfs/
[attachment]
MINIO_BASE_PATH = attachments/
[avatars]
MINIO_BASE_PATH = avatars/
[repo-avatars]
MINIO_BASE_PATH = repo-avatars/
[storage]
STORAGE_TYPE = minio
SERVE_DIRECT = false
MINIO_ENDPOINT = minio:9000
MINIO_ACCESS_KEY_ID = 123456
MINIO_SECRET_ACCESS_KEY = 12345678
MINIO_BUCKET = gitea
MINIO_LOCATION = us-east-1
MINIO_USE_SSL = false
MINIO_CHECKSUM_ALGORITHM = md5
[packages]
ENABLED = true
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