Jon Bringhurst created HADOOP-12621:
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Summary: Allow shutdown before full YARN_STOP_TIMEOUT has elapsed
Key: HADOOP-12621
URL: https://issues.apache.org/jira/browse/HADOOP-12621
Project: Hadoop Common
Issue Type: Improvement
Reporter: Jon Bringhurst
Assignee: Jon Bringhurst
I noticed that yarn-daemon.sh will wait the full time of YARN_STOP_TIMEOUT on
shutdown. Here's a snippet from yarn-daemon.sh in release-2.7.1:
{noformat}
if [ -f $pid ]; then
TARGET_PID=`cat $pid`
if kill -0 $TARGET_PID > /dev/null 2>&1; then
echo stopping $command
kill $TARGET_PID
sleep $YARN_STOP_TIMEOUT
if kill -0 $TARGET_PID > /dev/null 2>&1; then
echo "$command did not stop gracefully after $YARN_STOP_TIMEOUT
seconds: killing with kill -9"
kill -9 $TARGET_PID
fi
else
echo no $command to stop
fi
rm -f $pid
else
echo no $command to stop
fi
{noformat}
The script should poll the process rather than wait the entire time.
I'll also dig into trunk to see what the behavior is there.
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