Improve queue & process & stacktrace (#24636)
Although some features are mixed together in this PR, this PR is not
that large, and these features are all related.
Actually there are more than 70 lines are for a toy "test queue", so
this PR is quite simple.
Major features:
1. Allow site admin to clear a queue (remove all items in a queue)
* Because there is no transaction, the "unique queue" could be corrupted
in rare cases, that's unfixable.
* eg: the item is in the "set" but not in the "list", so the item would
never be able to be pushed into the queue.
* Now site admin could simply clear the queue, then everything becomes
correct, the lost items could be re-pushed into queue by future
operations.
3. Split the "admin/monitor" to separate pages
4. Allow to download diagnosis report
* In history, there were many users reporting that Gitea queue gets
stuck, or Gitea's CPU is 100%
* With diagnosis report, maintainers could know what happens clearly
The diagnosis report sample:
[gitea-diagnosis-20230510-192913.zip](https://github.com/go-gitea/gitea/files/11441346/gitea-diagnosis-20230510-192913.zip)
, use "go tool pprof profile.dat" to view the report.
Screenshots:
![image](https://github.com/go-gitea/gitea/assets/2114189/320659b4-2eda-4def-8dc0-5ea08d578063)
![image](https://github.com/go-gitea/gitea/assets/2114189/c5c46fae-9dc0-44ca-8cd3-57beedc5035e)
![image](https://github.com/go-gitea/gitea/assets/2114189/6168a811-42a1-4e64-a263-0617a6c8c4fe)
---------
Co-authored-by: Jason Song <i@wolfogre.com>
Co-authored-by: Giteabot <teabot@gitea.io>
2023-05-11 01:45:47 -06:00
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// Copyright 2023 The Gitea Authors.
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// SPDX-License-Identifier: MIT
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package admin
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import (
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"archive/zip"
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"fmt"
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"runtime/pprof"
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"time"
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"code.gitea.io/gitea/modules/context"
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"code.gitea.io/gitea/modules/httplib"
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)
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func MonitorDiagnosis(ctx *context.Context) {
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seconds := ctx.FormInt64("seconds")
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if seconds <= 5 {
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seconds = 5
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}
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if seconds > 300 {
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seconds = 300
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}
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httplib.ServeSetHeaders(ctx.Resp, &httplib.ServeHeaderOptions{
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ContentType: "application/zip",
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Disposition: "attachment",
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Filename: fmt.Sprintf("gitea-diagnosis-%s.zip", time.Now().Format("20060102-150405")),
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})
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zipWriter := zip.NewWriter(ctx.Resp)
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defer zipWriter.Close()
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f, err := zipWriter.CreateHeader(&zip.FileHeader{Name: "goroutine-before.txt", Method: zip.Deflate, Modified: time.Now()})
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if err != nil {
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ctx.ServerError("Failed to create zip file", err)
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return
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}
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_ = pprof.Lookup("goroutine").WriteTo(f, 1)
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f, err = zipWriter.CreateHeader(&zip.FileHeader{Name: "cpu-profile.dat", Method: zip.Deflate, Modified: time.Now()})
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if err != nil {
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ctx.ServerError("Failed to create zip file", err)
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return
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}
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err = pprof.StartCPUProfile(f)
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if err == nil {
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time.Sleep(time.Duration(seconds) * time.Second)
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pprof.StopCPUProfile()
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} else {
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_, _ = f.Write([]byte(err.Error()))
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}
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f, err = zipWriter.CreateHeader(&zip.FileHeader{Name: "goroutine-after.txt", Method: zip.Deflate, Modified: time.Now()})
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if err != nil {
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ctx.ServerError("Failed to create zip file", err)
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return
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}
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_ = pprof.Lookup("goroutine").WriteTo(f, 1)
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2023-12-23 18:18:43 -07:00
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f, err = zipWriter.CreateHeader(&zip.FileHeader{Name: "heap.dat", Method: zip.Deflate, Modified: time.Now()})
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if err != nil {
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ctx.ServerError("Failed to create zip file", err)
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return
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}
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_ = pprof.Lookup("heap").WriteTo(f, 0)
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Improve queue & process & stacktrace (#24636)
Although some features are mixed together in this PR, this PR is not
that large, and these features are all related.
Actually there are more than 70 lines are for a toy "test queue", so
this PR is quite simple.
Major features:
1. Allow site admin to clear a queue (remove all items in a queue)
* Because there is no transaction, the "unique queue" could be corrupted
in rare cases, that's unfixable.
* eg: the item is in the "set" but not in the "list", so the item would
never be able to be pushed into the queue.
* Now site admin could simply clear the queue, then everything becomes
correct, the lost items could be re-pushed into queue by future
operations.
3. Split the "admin/monitor" to separate pages
4. Allow to download diagnosis report
* In history, there were many users reporting that Gitea queue gets
stuck, or Gitea's CPU is 100%
* With diagnosis report, maintainers could know what happens clearly
The diagnosis report sample:
[gitea-diagnosis-20230510-192913.zip](https://github.com/go-gitea/gitea/files/11441346/gitea-diagnosis-20230510-192913.zip)
, use "go tool pprof profile.dat" to view the report.
Screenshots:
![image](https://github.com/go-gitea/gitea/assets/2114189/320659b4-2eda-4def-8dc0-5ea08d578063)
![image](https://github.com/go-gitea/gitea/assets/2114189/c5c46fae-9dc0-44ca-8cd3-57beedc5035e)
![image](https://github.com/go-gitea/gitea/assets/2114189/6168a811-42a1-4e64-a263-0617a6c8c4fe)
---------
Co-authored-by: Jason Song <i@wolfogre.com>
Co-authored-by: Giteabot <teabot@gitea.io>
2023-05-11 01:45:47 -06:00
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}
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