83 lines
2.4 KiB
Diff
83 lines
2.4 KiB
Diff
From 210d1acba11aee0cb4a543fa97feb9ecfc4ba532 Mon Sep 17 00:00:00 2001
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From: chenjiankun <chenjiankun1@huawei.com>
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Date: Tue, 15 Jun 2021 20:51:10 +0800
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Subject: [PATCH] docker: fix ProcessEvent block when CloseStreams block
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The ProcessEvent function will block if the CloseStreams function block in
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exit event processing. The reason is the ProcessEvent function is serial
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processing. So we need add a timeout mechanism to deal with it.
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---
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components/engine/container/stream/streams.go | 42 ++++++++++++-------
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1 file changed, 27 insertions(+), 15 deletions(-)
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diff --git a/components/engine/container/stream/streams.go b/components/engine/container/stream/streams.go
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index 585f9e8e3..1a7ef33d4 100644
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--- a/components/engine/container/stream/streams.go
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+++ b/components/engine/container/stream/streams.go
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@@ -7,6 +7,7 @@ import (
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"io/ioutil"
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"strings"
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"sync"
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+ "time"
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"github.com/containerd/containerd/cio"
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"github.com/docker/docker/pkg/broadcaster"
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@@ -92,27 +93,38 @@ func (c *Config) NewNopInputPipe() {
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// CloseStreams ensures that the configured streams are properly closed.
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func (c *Config) CloseStreams() error {
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- var errors []string
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+ done := make(chan struct{})
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+ var errorsInLine error
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- if c.stdin != nil {
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- if err := c.stdin.Close(); err != nil {
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- errors = append(errors, fmt.Sprintf("error close stdin: %s", err))
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+ go func() {
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+ var errors []string
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+ if c.stdin != nil {
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+ if err := c.stdin.Close(); err != nil {
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+ errors = append(errors, fmt.Sprintf("error close stdin: %s", err))
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+ }
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}
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- }
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- if err := c.stdout.Clean(); err != nil {
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- errors = append(errors, fmt.Sprintf("error close stdout: %s", err))
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- }
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+ if err := c.stdout.Clean(); err != nil {
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+ errors = append(errors, fmt.Sprintf("error close stdout: %s", err))
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+ }
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- if err := c.stderr.Clean(); err != nil {
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- errors = append(errors, fmt.Sprintf("error close stderr: %s", err))
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- }
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+ if err := c.stderr.Clean(); err != nil {
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+ errors = append(errors, fmt.Sprintf("error close stderr: %s", err))
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+ }
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- if len(errors) > 0 {
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- return fmt.Errorf(strings.Join(errors, "\n"))
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- }
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+ if len(errors) > 0 {
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+ errorsInLine = fmt.Errorf(strings.Join(errors, "\n"))
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+ }
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+
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+ close(done)
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+ }()
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- return nil
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+ select {
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+ case <-done:
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+ return errorsInLine
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+ case <-time.After(3 * time.Second):
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+ return fmt.Errorf("close stream timeout")
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+ }
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}
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// CopyToPipe connects streamconfig with a libcontainerd.IOPipe
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--
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2.27.0
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