forked from pingcap/tidb
-
Notifications
You must be signed in to change notification settings - Fork 0
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
*: fix panic when to enable lite-init-stats and concurrently-init-sta…
…ts (pingcap#52226) (pingcap#52265) close pingcap#52223
- Loading branch information
1 parent
2cd930e
commit ab26c0c
Showing
3 changed files
with
271 additions
and
26 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
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,74 @@ | ||
| // Copyright 2024 PingCAP, Inc. | ||
| // | ||
| // Licensed 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 initstats | ||
|
|
||
| import ( | ||
| "runtime" | ||
|
|
||
| "github.com/pingcap/tidb/pkg/util" | ||
| "github.com/pingcap/tidb/pkg/util/logutil" | ||
| "go.uber.org/zap" | ||
| ) | ||
|
|
||
| // Task represents the range of the table for loading stats. | ||
| type Task struct { | ||
| StartTid int64 | ||
| EndTid int64 | ||
| } | ||
|
|
||
| // RangeWorker is used to load stats concurrently by the range of table id. | ||
| type RangeWorker struct { | ||
| dealFunc func(task Task) error | ||
| taskChan chan Task | ||
|
|
||
| wg util.WaitGroupWrapper | ||
| } | ||
|
|
||
| // NewRangeWorker creates a new RangeWorker. | ||
| func NewRangeWorker(dealFunc func(task Task) error) *RangeWorker { | ||
| return &RangeWorker{ | ||
| dealFunc: dealFunc, | ||
| taskChan: make(chan Task, 1), | ||
| } | ||
| } | ||
|
|
||
| // LoadStats loads stats concurrently when to init stats | ||
| func (ls *RangeWorker) LoadStats() { | ||
| concurrency := runtime.GOMAXPROCS(0) | ||
| for n := 0; n < concurrency; n++ { | ||
| ls.wg.Run(func() { | ||
| ls.loadStats() | ||
| }) | ||
| } | ||
| } | ||
|
|
||
| func (ls *RangeWorker) loadStats() { | ||
| for task := range ls.taskChan { | ||
| if err := ls.dealFunc(task); err != nil { | ||
| logutil.BgLogger().Error("load stats failed", zap.Error(err)) | ||
| } | ||
| } | ||
| } | ||
|
|
||
| // SendTask sends a task to the load stats worker. | ||
| func (ls *RangeWorker) SendTask(task Task) { | ||
| ls.taskChan <- task | ||
| } | ||
|
|
||
| // Wait closes the load stats worker. | ||
| func (ls *RangeWorker) Wait() { | ||
| close(ls.taskChan) | ||
| ls.wg.Wait() | ||
| } |