forgejo/routers/web/admin/stacktrace.go
wxiaoguang 58dfaf3a75
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 07:45:47 +00:00

48 lines
1.4 KiB
Go

// Copyright 2023 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package admin
import (
"net/http"
"runtime"
"code.gitea.io/gitea/modules/context"
"code.gitea.io/gitea/modules/process"
"code.gitea.io/gitea/modules/setting"
)
// Stacktrace show admin monitor goroutines page
func Stacktrace(ctx *context.Context) {
ctx.Data["Title"] = ctx.Tr("admin.monitor")
ctx.Data["PageIsAdminMonitorStacktrace"] = true
ctx.Data["GoroutineCount"] = runtime.NumGoroutine()
show := ctx.FormString("show")
ctx.Data["ShowGoroutineList"] = show
// by default, do not do anything which might cause server errors, to avoid unnecessary 500 pages.
// this page is the entrance of the chance to collect diagnosis report.
if show != "" {
showNoSystem := show == "process"
processStacks, processCount, _, err := process.GetManager().ProcessStacktraces(false, showNoSystem)
if err != nil {
ctx.ServerError("GoroutineStacktrace", err)
return
}
ctx.Data["ProcessStacks"] = processStacks
ctx.Data["ProcessCount"] = processCount
}
ctx.HTML(http.StatusOK, tplStacktrace)
}
// StacktraceCancel cancels a process
func StacktraceCancel(ctx *context.Context) {
pid := ctx.Params("pid")
process.GetManager().Cancel(process.IDType(pid))
ctx.JSON(http.StatusOK, map[string]interface{}{
"redirect": setting.AppSubURL + "/admin/monitor/stacktrace",
})
}