-
Notifications
You must be signed in to change notification settings - Fork 283
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
[feat]: add get write ahead log replica state api
- Loading branch information
Showing
20 changed files
with
500 additions
and
98 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,116 @@ | ||
| // Licensed to LinDB under one or more contributor | ||
| // license agreements. See the NOTICE file distributed with | ||
| // this work for additional information regarding copyright | ||
| // ownership. LinDB licenses this file to you under | ||
| // the Apache License, Version 2.0 (the "License"); you may | ||
| // not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, | ||
| // software distributed under the License is distributed on an | ||
| // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY | ||
| // KIND, either express or implied. See the License for the | ||
| // specific language governing permissions and limitations | ||
| // under the License. | ||
|
|
||
| package state | ||
|
|
||
| import ( | ||
| "encoding/json" | ||
| "io" | ||
| "net/http" | ||
| "sync" | ||
|
|
||
| "github.com/gin-gonic/gin" | ||
|
|
||
| "github.com/lindb/lindb/app/broker/deps" | ||
| "github.com/lindb/lindb/models" | ||
| httppkg "github.com/lindb/lindb/pkg/http" | ||
| "github.com/lindb/lindb/pkg/logger" | ||
| ) | ||
|
|
||
| var ( | ||
| ReplicaPath = "/state/replica" | ||
| ) | ||
|
|
||
| // ReplicaAPI represents internal wal replica state rest api. | ||
| type ReplicaAPI struct { | ||
| deps *deps.HTTPDeps | ||
| logger *logger.Logger | ||
| } | ||
|
|
||
| // NewReplicaAPI creates replica api instance. | ||
| func NewReplicaAPI(deps *deps.HTTPDeps) *ReplicaAPI { | ||
| return &ReplicaAPI{ | ||
| deps: deps, | ||
| logger: logger.GetLogger("broker", "NewReplicaAPI"), | ||
| } | ||
| } | ||
|
|
||
| // Register adds replica state url route. | ||
| func (d *ReplicaAPI) Register(route gin.IRoutes) { | ||
| route.GET(ReplicaPath, d.GetReplicaState) | ||
| } | ||
|
|
||
| // GetReplicaState returns wal replica state. | ||
| func (d *ReplicaAPI) GetReplicaState(c *gin.Context) { | ||
| var param struct { | ||
| StorageName string `form:"storageName" binding:"required"` | ||
| DB string `form:"db" binding:"required"` | ||
| } | ||
| err := c.ShouldBind(¶m) | ||
| if err != nil { | ||
| httppkg.Error(c, err) | ||
| return | ||
| } | ||
| storage, ok := d.deps.StateMgr.GetStorage(param.StorageName) | ||
| if !ok { | ||
| httppkg.NotFound(c) | ||
| return | ||
| } | ||
| liveNodes := storage.LiveNodes | ||
| var nodes []models.Node | ||
| for id := range liveNodes { | ||
| n := liveNodes[id] | ||
| nodes = append(nodes, &n) | ||
| } | ||
| d.fetchStateData(c, nodes) | ||
| } | ||
|
|
||
| // fetchStateData fetches the state metric from each live nodes. | ||
| func (d *ReplicaAPI) fetchStateData(c *gin.Context, nodes []models.Node) { | ||
| size := len(nodes) | ||
| if size == 0 { | ||
| httppkg.NotFound(c) | ||
| return | ||
| } | ||
| q := c.Request.URL.Query() | ||
| params := q.Encode() | ||
| result := make([][]models.FamilyLogReplicaState, size) | ||
| var wait sync.WaitGroup | ||
| wait.Add(size) | ||
| for idx := range nodes { | ||
| i := idx | ||
| go func() { | ||
| defer wait.Done() | ||
| node := nodes[i] | ||
| req, _ := http.NewRequest(http.MethodGet, node.HTTPAddress(), nil) | ||
| req.URL.Path = c.Request.URL.Path | ||
| req.URL.RawQuery = params | ||
| var state []models.FamilyLogReplicaState | ||
| if err := get(req, func(body io.Reader) error { | ||
| return json.NewDecoder(body).Decode(&state) | ||
| }); err == nil { | ||
| result[i] = state | ||
| } | ||
| }() | ||
| } | ||
| wait.Wait() | ||
| rs := make(map[string][]models.FamilyLogReplicaState) | ||
| for idx := range nodes { | ||
| rs[nodes[idx].Indicator()] = result[idx] | ||
| } | ||
| httppkg.OK(c, rs) | ||
| } |
Oops, something went wrong.