43 lines
1.4 KiB
Diff
43 lines
1.4 KiB
Diff
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From 7f483b7d5a6bd88ea35f5dcf1a5fea5d165044fe Mon Sep 17 00:00:00 2001
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From: lixiang172 <lixiang172@huawei.com>
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Date: Tue, 12 Feb 2019 15:22:06 +0800
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Subject: [PATCH 18/27] containerd-shim: Dump log to file when docker
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received signal
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reason: Dump stack log to file when docker received "kill -SIGUSR1
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PID" signal
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The name of log files is "shim-stack-[time].log".
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The log file can be found at:
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/run/docker/containerd/daemon/io.containerd.runtime.v1.linux/moby/container-id/shim-stack-[time].log
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Change-Id: I6d7e03c9a0fd36e9a76f1dd45cfd5312985d03f8
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Signed-off-by: lixiang172 <lixiang172@huawei.com>
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---
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cmd/containerd-shim/main_unix.go | 3 +++
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1 file changed, 3 insertions(+)
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diff --git a/cmd/containerd-shim/main_unix.go b/cmd/containerd-shim/main_unix.go
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index d1f41b0..38b3eb4 100644
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--- a/cmd/containerd-shim/main_unix.go
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+++ b/cmd/containerd-shim/main_unix.go
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@@ -246,6 +246,8 @@ func handleSignals(logger *logrus.Entry, signals chan os.Signal, server *ttrpc.S
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}
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}
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+const stacksLogNameTemplate = "shim-stacks-%s.log"
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+
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func dumpStacks(logger *logrus.Entry) {
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var (
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buf []byte
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@@ -258,6 +260,7 @@ func dumpStacks(logger *logrus.Entry) {
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bufferLen *= 2
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}
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buf = buf[:stackSize]
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+ ioutil.WriteFile(fmt.Sprintf(stacksLogNameTemplate, strings.Replace(time.Now().Format(time.RFC3339), ":", "", -1)), buf, 0600)
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logger.Infof("=== BEGIN goroutine stack dump ===\n%s\n=== END goroutine stack dump ===", buf)
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}
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--
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2.7.4.3
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