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Merge pull request #3190 from jhowardmsft/jjh/stack2file

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Write stack dump to `os.TempDir()` as well
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Phil Estes 2019-04-18 14:43:25 -04:00 committed by GitHub
commit ffe0b6927b
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1 changed files with 10 additions and 0 deletions
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10
cmd/containerd/command/main.go
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@ -291,4 +291,14 @@ func dumpStacks() {
} }
buf = buf[:stackSize] buf = buf[:stackSize]
logrus.Infof("=== BEGIN goroutine stack dump ===\n%s\n=== END goroutine stack dump ===", buf) logrus.Infof("=== BEGIN goroutine stack dump ===\n%s\n=== END goroutine stack dump ===", buf)
// Also write to file to aid gathering diagnostics
name := filepath.Join(os.TempDir(), fmt.Sprintf("containerd.%d.stacks.log", os.Getpid()))
f, err := os.Create(name)
if err != nil {
return
}
defer f.Close()
f.WriteString(string(buf))
logrus.Infof("goroutine stack dump written to %s", name)
} }