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https://issues.apache.org/jira/browse/BOOKKEEPER-296?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13397282#comment-13397282
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Uma Maheswara Rao G commented on BOOKKEEPER-296:
------------------------------------------------
#1 Agreed.
#2. Right. But after the experience's, I think we have this kind of pattern in
Hadoop and Zookeeper also.
Hadoop script:
{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 $HADOOP_STOP_TIMEOUT
if kill -0 $TARGET_PID > /dev/null 2>&1; then
echo "$command did not stop gracefully after $HADOOP_STOP_TIMEOUT
seconds: killing with kill -9"
kill -9 $TARGET_PID
fi
else
{noformat}
ZK script:
{noformat}
echo -n "Stopping zookeeper ... "
if [ ! -f "$ZOOPIDFILE" ]
then
echo "no zookeeper to stop (could not find file $ZOOPIDFILE)"
else
$KILL -9 $(cat "$ZOOPIDFILE")
rm "$ZOOPIDFILE"
echo STOPPED
fi
exit 0
{noformat}
Even though we have many ledgers, that information will be flushed periodically
by SyncThread in Bookie right. I am not sure, there is a chance of accumulating
huge data to flush here even after some timeout wait. That situation is always
risk, because of sudden poweroff or rack shutdown. can increase this time to
some reasonable period?
> It's better provide stop script for bookie
> ------------------------------------------
>
> Key: BOOKKEEPER-296
> URL: https://issues.apache.org/jira/browse/BOOKKEEPER-296
> Project: Bookkeeper
> Issue Type: Bug
> Components: bookkeeper-server
> Affects Versions: 4.0.0
> Reporter: Brahma Reddy Battula
> Attachments: BOOKKEEPER-296.1.patch, BOOKKEEPER-296.patch
>
>
> Currently there is no command to stop bookie in 4.0.0..It's better to provide
> stop command for bookie.
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