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https://github.com/go-gitea/gitea.git
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c88547ce71
Continues on from #19202. Following the addition of pprof labels we can now more easily understand the relationship between a goroutine and the requests that spawn them. This PR takes advantage of the labels and adds a few others, then provides a mechanism for the monitoring page to query the pprof goroutine profile. The binary profile that results from this profile is immediately piped in to the google library for parsing this and then stack traces are formed for the goroutines. If the goroutine is within a context or has been created from a goroutine within a process context it will acquire the process description labels for that process. The goroutines are mapped with there associate pids and any that do not have an associated pid are placed in a group at the bottom as unbound. In this way we should be able to more easily examine goroutines that have been stuck. A manager command `gitea manager processes` is also provided that can export the processes (with or without stacktraces) to the command line. Signed-off-by: Andrew Thornton <art27@cantab.net>
161 lines
3.5 KiB
Go
161 lines
3.5 KiB
Go
// Copyright 2020 The Gitea Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package cmd
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import (
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"fmt"
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"net/http"
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"os"
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"time"
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"code.gitea.io/gitea/modules/private"
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"github.com/urfave/cli"
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)
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var (
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// CmdManager represents the manager command
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CmdManager = cli.Command{
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Name: "manager",
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Usage: "Manage the running gitea process",
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Description: "This is a command for managing the running gitea process",
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Subcommands: []cli.Command{
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subcmdShutdown,
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subcmdRestart,
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subcmdFlushQueues,
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subcmdLogging,
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subCmdProcesses,
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},
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}
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subcmdShutdown = cli.Command{
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Name: "shutdown",
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Usage: "Gracefully shutdown the running process",
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Flags: []cli.Flag{
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cli.BoolFlag{
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Name: "debug",
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},
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},
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Action: runShutdown,
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}
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subcmdRestart = cli.Command{
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Name: "restart",
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Usage: "Gracefully restart the running process - (not implemented for windows servers)",
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Flags: []cli.Flag{
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cli.BoolFlag{
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Name: "debug",
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},
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},
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Action: runRestart,
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}
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subcmdFlushQueues = cli.Command{
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Name: "flush-queues",
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Usage: "Flush queues in the running process",
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Action: runFlushQueues,
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Flags: []cli.Flag{
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cli.DurationFlag{
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Name: "timeout",
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Value: 60 * time.Second,
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Usage: "Timeout for the flushing process",
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},
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cli.BoolFlag{
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Name: "non-blocking",
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Usage: "Set to true to not wait for flush to complete before returning",
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},
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cli.BoolFlag{
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Name: "debug",
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},
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},
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}
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subCmdProcesses = cli.Command{
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Name: "processes",
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Usage: "Display running processes within the current process",
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Action: runProcesses,
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Flags: []cli.Flag{
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cli.BoolFlag{
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Name: "debug",
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},
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cli.BoolFlag{
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Name: "flat",
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Usage: "Show processes as flat table rather than as tree",
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},
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cli.BoolFlag{
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Name: "no-system",
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Usage: "Do not show system proceses",
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},
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cli.BoolFlag{
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Name: "stacktraces",
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Usage: "Show stacktraces",
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},
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cli.BoolFlag{
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Name: "json",
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Usage: "Output as json",
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},
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cli.StringFlag{
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Name: "cancel",
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Usage: "Process PID to cancel. (Only available for non-system processes.)",
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},
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},
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}
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)
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func runShutdown(c *cli.Context) error {
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ctx, cancel := installSignals()
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defer cancel()
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setup("manager", c.Bool("debug"))
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statusCode, msg := private.Shutdown(ctx)
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switch statusCode {
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case http.StatusInternalServerError:
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return fail("InternalServerError", msg)
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}
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fmt.Fprintln(os.Stdout, msg)
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return nil
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}
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func runRestart(c *cli.Context) error {
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ctx, cancel := installSignals()
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defer cancel()
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setup("manager", c.Bool("debug"))
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statusCode, msg := private.Restart(ctx)
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switch statusCode {
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case http.StatusInternalServerError:
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return fail("InternalServerError", msg)
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}
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fmt.Fprintln(os.Stdout, msg)
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return nil
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}
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func runFlushQueues(c *cli.Context) error {
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ctx, cancel := installSignals()
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defer cancel()
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setup("manager", c.Bool("debug"))
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statusCode, msg := private.FlushQueues(ctx, c.Duration("timeout"), c.Bool("non-blocking"))
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switch statusCode {
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case http.StatusInternalServerError:
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return fail("InternalServerError", msg)
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}
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fmt.Fprintln(os.Stdout, msg)
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return nil
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}
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func runProcesses(c *cli.Context) error {
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ctx, cancel := installSignals()
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defer cancel()
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setup("manager", c.Bool("debug"))
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statusCode, msg := private.Processes(ctx, os.Stdout, c.Bool("flat"), c.Bool("no-system"), c.Bool("stacktraces"), c.Bool("json"), c.String("cancel"))
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switch statusCode {
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case http.StatusInternalServerError:
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return fail("InternalServerError", msg)
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}
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return nil
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}
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