在 kubernetes 源代码中,有一个代码块处理性能分析部分,但我不能访问端点:in kubernetes/pkgs/kubelet/server/stats/server.gofunc (s *Server) InstallProfilingHandler(enableProfilingLogHandler bool, enableContentionProfiling bool) { s.addMetricsBucketMatcher("debug") if !enableProfilingLogHandler { s.restfulCont.Handle(pprofBasePath, getHandlerForDisabledEndpoint("profiling endpoint is disabled.")) return } handlePprofEndpoint := func(req *restful.Request, resp *restful.Response) { name := strings.TrimPrefix(req.Request.URL.Path, pprofBasePath) switch name { case "profile": pprof.Profile(resp, req.Request) case "symbol": pprof.Symbol(resp, req.Request) case "cmdline": pprof.Cmdline(resp, req.Request) case "trace": pprof.Trace(resp, req.Request) default: pprof.Index(resp, req.Request) } } // Setup pprof handlers. ws := new(restful.WebService).Path(pprofBasePath) ws.Route(ws.GET("/{subpath:*}").To(handlePprofEndpoint)).Doc("pprof endpoint") s.restfulCont.Add(ws) if enableContentionProfiling { goruntime.SetBlockProfileRate(1) }}我不知道pprof工具使用的端口,但我发现它使用:controller-0:/home/sysadmin/go/bin# netstat -atlpn | grep kubelettcp 0 0 127.0.0.1:10248 0.0.0.0:* LISTEN 184856/kubelet tcp 0 0 192.168.206.2:49720 192.168.206.1:6443 ESTABLISHED 184856/kubelet tcp6 0 0 :::10250 :::* LISTEN 184856/kubelet 然后我试过了controller-0:/home/sysadmin/go/bin# ./go tool pprof http://localhost:6443/debug/pprof/mutexFetching profile over HTTP from http://localhost:6443/debug/pprof/mutexhttp://localhost:6443/debug/pprof/mutex: server response: 400 Bad Requestfailed to fetch any source profiles有没有人知道我应该尝试什么来访问 pprof 端点?或者如何尝试不同的方法来分析kubelet过程?
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海绵宝宝撒
TA贡献1809条经验 获得超8个赞
尝试:
$ kubectl proxy &
Starting to serve on 127.0.0.1:8001
$ go tool pprof "http://localhost:8001/api/v1/nodes/${NODE}/proxy/debug/pprof/profile"
当你启动时,所有请求都去 kubelet 运行在 .您可以添加所需的任何路径和它。让它成为或或你想要的任何东西。kubectl proxyhttp://localhost:8001/api/v1/nodes/${NODE}/proxy/${NODE}/debug/pprof/profiledebug/pprof/heap
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