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:



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