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Add sysconfig in doc

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Signed-off-by: GuoRentong <rentong.guo@zilliz.com>
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GuoRentong 2020-11-20 10:42:51 +08:00 committed by yefu.chen
parent 50d59d91ee
commit d97bc04ced
1 changed files with 58 additions and 8 deletions
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66
docs/developer_guides/chap06_master.md
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@ -21,7 +21,7 @@
| AllocTimestamp | allocate a batch of consecutive timestamps | | AllocTimestamp | allocate a batch of consecutive timestamps |
| AllocID | allocate a batch of consecutive IDs | | AllocID | allocate a batch of consecutive IDs |
| AssignSegmentID | assign segment id to insert rows (master determines which segment these rows belong to) | | AssignSegmentID | assign segment id to insert rows (master determines which segment these rows belong to) |
| | | | GetSysConfigs | get system configurations |
| | | | | |
@ -335,9 +335,13 @@ message QueryNodeStats {
```go ```go
type assignment struct {
MemSize int64
AssignTime time.Time
}
type segmentStatus struct { type segmentStatus struct {
NumRows int64 assignments []*assignment
MemSize int64
} }
type collectionStatus struct { type collectionStatus struct {
@ -349,19 +353,65 @@ type SegmentManagement struct {
collStatus map[UniqueID]*collectionStatus collStatus map[UniqueID]*collectionStatus
} }
func (segMgr *SegmentManagement) Start() error func NewSegmentManagement(ctx context.Context) *SegmentManagement
func (segMgr *SegmentManagement) Close() error
func NewSegmentManagement(ctx context.Context, statsStream *MsgStream) *SegmentManagement
``` ```
###### 10.7.1 Assign Segment ID to Inserted Rows ###### 10.7.1 Assign Segment ID to Inserted Rows
Master receives *AssignSegIDRequest* which contains a list of *SegIDRequest(count, channelID, collectionName, partitionTag)* from Proxy. Segment Manager will assign the opened segments or open a new segment if there is no enough space, and Segment Manager will record the allocated space which can be reallocated after a expire duration.
```go ```go
func (segMgr *SegmentManagement) AssignSegmentID(collID UniqueID, count int64) (UniqueID, error) func (segMgr *SegmentManager) AssignSegmentID(segIDReq []*internalpb.SegIDRequest) ([]*internalpb.SegIDAssignment, error)
``` ```
#### 10.8 System Config
```protobuf
// examples of keys:
// "/pulsar/ip"
// "/pulsar/port"
// examples of key_prefixes:
// "/proxy"
// "/msg_stream/insert"
message SysConfigRequest {
repeated string keys = 1;
repeated string key_prefixes = 2;
}
message SysConfigResponse {
repeated string keys = 1;
repeated string values = 2;
}
```
```go
type SysConfig struct {
etcdKV *etcd
etcdPathPrefix string
}
func (conf *SysConfig) InitFromFile(filePath string) (error)
func (conf *SysConfig) GetByPrefix(keyPrefix string) ([]string, error)
func (conf *SysConfig) Get(keys []string) ([]string, error)
```
configuration examples in etcd:
```
key: root_path/config/master/address
value: "localhost"
key: root_path/config/proxy/timezone
value: "UTC+8"
```