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https://issues.apache.org/jira/browse/YARN-8786?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17296034#comment-17296034
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Peter Bacsko edited comment on YARN-8786 at 3/5/21, 2:14 PM:
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[~jlowe] [~ebadger] [~jonbender-stripe] do we still need this JIRA open? Is the
issue still happening after YARN-9833? (as it turned out that fix is still not
100% perfect, but very close enough to 100% which makes it acceptable).
was (Author: pbacsko):
[~jlowe] [~ebadger] [~jonbender-stripe] do we still need this JIRA open? Is the
issue still happening after YARN-9833 (as it turned out that fix is still not
100% perfect, but very close enough to 100% which makes it acceptable).
> LinuxContainerExecutor fails sporadically in create_local_dirs
> --------------------------------------------------------------
>
> Key: YARN-8786
> URL: https://issues.apache.org/jira/browse/YARN-8786
> Project: Hadoop YARN
> Issue Type: Bug
> Affects Versions: 3.0.0
> Reporter: Jon Bender
> Priority: Major
>
> We started using CGroups with LinuxContainerExecutor recently, running Apache
> Hadoop 3.0.0. Occasionally (once out of many millions of tasks) a yarn
> container will fail with a message like the following:
> {code:java}
> [2018-09-02 23:48:02.458691] 18/09/02 23:48:02 INFO container.ContainerImpl:
> Container container_1530684675517_516620_01_020846 transitioned from
> SCHEDULED to RUNNING
> [2018-09-02 23:48:02.458874] 18/09/02 23:48:02 INFO
> monitor.ContainersMonitorImpl: Starting resource-monitoring for
> container_1530684675517_516620_01_020846
> [2018-09-02 23:48:02.506114] 18/09/02 23:48:02 WARN
> privileged.PrivilegedOperationExecutor: Shell execution returned exit code:
> 35. Privileged Execution Operation Stderr:
> [2018-09-02 23:48:02.506159] Could not create container dirsCould not create
> local files and directories
> [2018-09-02 23:48:02.506220]
> [2018-09-02 23:48:02.506238] Stdout: main : command provided 1
> [2018-09-02 23:48:02.506258] main : run as user is nobody
> [2018-09-02 23:48:02.506282] main : requested yarn user is root
> [2018-09-02 23:48:02.506294] Getting exit code file...
> [2018-09-02 23:48:02.506307] Creating script paths...
> [2018-09-02 23:48:02.506330] Writing pid file...
> [2018-09-02 23:48:02.506366] Writing to tmp file
> /path/to/hadoop/yarn/local/nmPrivate/application_1530684675517_516620/container_1530684675517_516620_01_020846/container_1530684675517_516620_01_020846.pid.tmp
> [2018-09-02 23:48:02.506389] Writing to cgroup task files...
> [2018-09-02 23:48:02.506402] Creating local dirs...
> [2018-09-02 23:48:02.506414] Getting exit code file...
> [2018-09-02 23:48:02.506435] Creating script paths...
> {code}
> Looking at the container executor source it's traceable to errors here:
> [https://github.com/apache/hadoop/blob/release-3.0.0-RC1/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/native/container-executor/impl/container-executor.c#L1604]
> And ultimately to
> [https://github.com/apache/hadoop/blob/release-3.0.0-RC1/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/native/container-executor/impl/container-executor.c#L672]
> The root failure seems to be in the underlying mkdir call, but that exit code
> / errno is swallowed so we don't have more details. We tend to see this when
> many containers start at the same time for the same application on a host,
> and suspect it may be related to some race conditions around those shared
> directories between containers for the same application.
> For example, this is a typical pattern in the audit logs:
> {code:java}
> [2018-09-07 17:16:38.447654] 18/09/07 17:16:38 INFO
> nodemanager.NMAuditLogger: USER=root IP=<> Container Request
> TARGET=ContainerManageImpl RESULT=SUCCESS
> APPID=application_1530684675517_559126
> CONTAINERID=container_1530684675517_559126_01_012871
> [2018-09-07 17:16:38.492298] 18/09/07 17:16:38 INFO
> nodemanager.NMAuditLogger: USER=root IP=<> Container Request
> TARGET=ContainerManageImpl RESULT=SUCCESS
> APPID=application_1530684675517_559126
> CONTAINERID=container_1530684675517_559126_01_012870
> [2018-09-07 17:16:38.614044] 18/09/07 17:16:38 WARN
> nodemanager.NMAuditLogger: USER=root OPERATION=Container Finished -
> Failed TARGET=ContainerImpl RESULT=FAILURE DESCRIPTION=Container failed
> with state: EXITED_WITH_FAILURE APPID=application_1530684675517_559126
> CONTAINERID=container_1530684675517_559126_01_012871
> {code}
> Two containers for the same application starting in quick succession followed
> by the EXITED_WITH_FAILURE step (exit code 35).
> We plan to upgrade to 3.1.x soon but I don't expect this to be fixed by this,
> the only major JIRAs that affected the executor since 3.0.0 seem unrelated
> ([https://github.com/apache/hadoop/commit/bc285da107bb84a3c60c5224369d7398a41db2d8]
> and
> [https://github.com/apache/hadoop/commit/a82be7754d74f4d16b206427b91e700bb5f44d56])
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