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https://issues.apache.org/jira/browse/YARN-11831?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18056255#comment-18056255
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ASF GitHub Bot commented on YARN-11831:
---------------------------------------
hadoop-yetus commented on PR #7758:
URL: https://github.com/apache/hadoop/pull/7758#issuecomment-3842415926
:broken_heart: **-1 overall**
| Vote | Subsystem | Runtime | Logfile | Comment |
|:----:|----------:|--------:|:--------:|:-------:|
| +0 :ok: | reexec | 0m 0s | | Docker mode activated. |
| -1 :x: | patch | 0m 47s | |
https://github.com/apache/hadoop/pull/7758 does not apply to trunk. Rebase
required? Wrong Branch? See
https://cwiki.apache.org/confluence/display/HADOOP/How+To+Contribute for help.
|
| Subsystem | Report/Notes |
|----------:|:-------------|
| Console output |
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-7758/8/console |
| versions | git=2.34.1 |
| Powered by | Apache Yetus 0.14.1 https://yetus.apache.org |
This message was automatically generated.
> Docker executor does not signal applications with kill
> ------------------------------------------------------
>
> Key: YARN-11831
> URL: https://issues.apache.org/jira/browse/YARN-11831
> Project: Hadoop YARN
> Issue Type: Bug
> Components: nodemanager
> Affects Versions: 3.4.1
> Reporter: Adam Binford
> Priority: Major
> Labels: pull-request-available
>
> With the Docker runtime, applications do not receive signals from the
> NodeManagers and are not able to exit cleanly. This is because the root
> process in the container is "bash -c", as set by the UnixShellScriptBuilder,
> and bash does not forward signals to its child processes.
> This only affects the Docker runtime because other Linux runtimes use the
> system "kill" command with the process group ID, not just the PID, so all
> child processes receive the kill signal even if the parent process doesn't
> forward it.
> The fix is either:
> - Remove the "bash -c" process from the tree, I'm not sure why this needs to
> exist as the launch_container.sh script is already running in bash to begin
> with.
> - Use the system kill command on the PID reported by docker instead of using
> "docker kill"
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