Weiwei Yang created HADOOP-13837:
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Summary: 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
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.
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