这里有 goroutine 的泄露问题吗? - V2EX
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这里有 goroutine 的泄露问题吗?

  •  
  •   luxcgo 2022-02-23 12:41:25 +08:00 1925 次点击
    这是一个创建于 1384 天前的主题,其中的信息可能已经有所发展或是发生改变。

    开始和结束的时候的 goroutine 数量不一致

    第 1 条附言    2022-02-23 13:48:55 +08:00
    1 ^C2022/02/23 13:44:13 收到结束信号(interrupt),准备结束进程 goroutine profile: total 2 1 @ 0x40a554 0x45d018 0x498cf9 0x4606e1 # 0x45d017 os/signal.signal_recv+0x97 /usr/lib/go-1.17/src/runtime/sigqueue.go:169 # 0x498cf8 os/signal.loop+0x18 /usr/lib/go-1.17/src/os/signal/signal_unix.go:24 1 @ 0x45bca5 0x4a8c55 0x4a8a6d 0x4a5beb 0x4b23f4 0x434c47 0x4606e1 # 0x45bca4 runtime/pprof.runtime_goroutineProfileWithLabels+0x24 /usr/lib/go-1.17/src/runtime/mprof.go:746 # 0x4a8c54 runtime/pprof.writeRuntimeProfile+0xb4 /usr/lib/go-1.17/src/runtime/pprof/pprof.go:724 # 0x4a8a6c runtime/pprof.writeGoroutine+0x4c /usr/lib/go-1.17/src/runtime/pprof/pprof.go:684 # 0x4a5bea runtime/pprof.(*Profile).WriteTo+0x14a /usr/lib/go-1.17/src/runtime/pprof/pprof.go:331 # 0x4b23f3 main.main+0xb3 /home/lucas/github/go-snippet/leak/main.go:37 # 0x434c46 runtime.main+0x226 /usr/lib/go-1.17/src/runtime/proc.go:255 

    经过 pprof 的分析后,多的一个 goroutine 是 signal 创建的

    这个 goroutine 如何退出呢

    在开发的过程中是不是要掌握所有 goroutine 的生命周期,在程序结束时先清理 goroutine,等他们都退出了整个程序再退出

    5 条回复    2022-02-23 13:53:33 +08:00
    CEBBCAT
        1
    CEBBCAT  
       2022-02-23 12:45:51 +08:00 via iPhone
    那一个 goroutine ,会不会是 signal 包创建的?
    lloovve
        2
    lloovve  
       2022-02-23 12:53:20 +08:00
    打印出来的是 channel 过来的数据吧,不是携程数
    pixelpig
        3
    pixelpig  
       2022-02-23 13:20:57 +08:00
    可以用 pprof 分析一下协程上下文,就知道是哪里创建的
    janxin
        4
    janxin  
       2022-02-23 13:32:56 +08:00
    但是问题是都进程退出了,是不是泄漏了不是很重要...
    luxcgo
        5
    luxcgo  
    OP
       2022-02-23 13:53:33 +08:00
    @CEBBCAT 经过分析,是的
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