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https://issues.apache.org/jira/browse/HADOOP-13837?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Weiwei Yang updated HADOOP-13837:
---------------------------------
Description:
Always get {{ERROR: Unable to kill ...}} after {{Trying to kill with kill -9}},
see following output of stop-yarn.sh
{code}
<NM_HOST>: WARNING: nodemanager did not stop gracefully after 5 seconds: Trying
to kill with kill -9
<NM_HOST>: ERROR: Unable to kill 18097
{code}
hadoop_stop_daemon doesn't check process liveness correctly, this bug can be
reproduced by the script easily. kill -9 would need some time to be done,
directly check process existence right after mostly will fail.
was:
Always get {{ERROR: Unable to kill ...}} after {{Trying to kill with kill -9}},
see following output of stop-yarn.sh
{code}
<NM_HOST>: WARNING: nodemanager did not stop gracefully after 5 seconds: Trying
to kill with kill -9
<NM_HOST>: ERROR: Unable to kill 18097
{code}
hadoop_stop_daemon doesn't check process liveness correctly, this bug can be
reproduced by the script easily.
> Process check bug in hadoop_stop_daemon
> ---------------------------------------
>
> Key: HADOOP-13837
> URL: https://issues.apache.org/jira/browse/HADOOP-13837
> Project: Hadoop Common
> Issue Type: Bug
> Components: scripts
> Reporter: Weiwei Yang
> Assignee: Weiwei Yang
> Attachments: check_proc.sh
>
>
> Always get {{ERROR: Unable to kill ...}} after {{Trying to kill with kill
> -9}}, see following output of stop-yarn.sh
> {code}
> <NM_HOST>: WARNING: nodemanager did not stop gracefully after 5 seconds:
> Trying to kill with kill -9
> <NM_HOST>: ERROR: Unable to kill 18097
> {code}
> hadoop_stop_daemon doesn't check process liveness correctly, this bug can be
> reproduced by the script easily. kill -9 would need some time to be done,
> directly check process existence right after mostly will fail.
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