HBASE-5939 Add an autorestart option in the start scripts
git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1337418 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Michael Stack
parent
83ab15e2ed
commit
e8f27c7408
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@ -33,7 +33,7 @@
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# Modelled after $HADOOP_HOME/bin/hadoop-daemon.sh
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usage="Usage: hbase-daemon.sh [--config <conf-dir>]\
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(start|stop|restart) <hbase-command> \
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(start|stop|restart|autorestart) <hbase-command> \
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<args...>"
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# if no args specified, show usage
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@ -80,6 +80,17 @@ cleanZNode() {
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fi
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}
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check_before_start(){
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#ckeck if the process is not running
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mkdir -p "$HBASE_PID_DIR"
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if [ -f $pid ]; then
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if kill -0 `cat $pid` > /dev/null 2>&1; then
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echo $command running as process `cat $pid`. Stop it first.
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exit 1
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fi
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fi
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}
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wait_until_done ()
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{
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p=$1
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@ -122,15 +133,18 @@ if [ "$JAVA_HOME" = "" ]; then
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echo "Error: JAVA_HOME is not set."
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exit 1
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fi
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JAVA=$JAVA_HOME/bin/java
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export HBASE_LOG_PREFIX=hbase-$HBASE_IDENT_STRING-$command-$HOSTNAME
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export HBASE_LOGFILE=$HBASE_LOG_PREFIX.log
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export HBASE_ROOT_LOGGER=${HBASE_ROOT_LOGGER:-"INFO,RFA"}
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logout=$HBASE_LOG_DIR/$HBASE_LOG_PREFIX.out
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logout=$HBASE_LOG_DIR/$HBASE_LOG_PREFIX.out
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loggc=$HBASE_LOG_DIR/$HBASE_LOG_PREFIX.gc
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loglog="${HBASE_LOG_DIR}/${HBASE_LOGFILE}"
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pid=$HBASE_PID_DIR/hbase-$HBASE_IDENT_STRING-$command.pid
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export HBASE_ZNODE_FILE=$HBASE_PID_DIR/hbase-$HBASE_IDENT_STRING-$command.znode
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export HBASE_START_FILE=$HBASE_PID_DIR/hbase-$HBASE_IDENT_STRING-$command.autorestart
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if [ "$HBASE_USE_GC_LOGFILE" = "true" ]; then
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export HBASE_GC_OPTS=" -Xloggc:${loggc}"
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@ -146,18 +160,17 @@ args=$@
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case $startStop in
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(start)
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mkdir -p "$HBASE_PID_DIR"
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if [ -f $pid ]; then
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if kill -0 `cat $pid` > /dev/null 2>&1; then
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echo $command running as process `cat $pid`. Stop it first.
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exit 1
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fi
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fi
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(start)
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check_before_start
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nohup $thiscmd --config "${HBASE_CONF_DIR}" internal_start $command $args < /dev/null > /dev/null 2>&1 &
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;;
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;;
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(internal_start)
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(autorestart)
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check_before_start
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nohup $thiscmd --config "${HBASE_CONF_DIR}" internal_autorestart $command $args < /dev/null > /dev/null 2>&1 &
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;;
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(internal_start)
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hbase_rotate_log $logout
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hbase_rotate_log $loggc
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echo starting $command, logging to $logout
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@ -171,31 +184,74 @@ case $startStop in
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sleep 1; head "$logout"
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wait
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cleanZNode
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;;
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(internal_autorestart)
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touch "$HBASE_START_FILE"
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#keep starting the command until asked to stop. Reloop on software crash
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while true
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do
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lastLaunchDate=`date +%s`
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$thiscmd --config "${HBASE_CONF_DIR}" internal_start $command $args
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#if the file does not exist it means that it was not stopped properly by the stop command
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if [ ! -f "$HBASE_START_FILE" ]; then
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exit 1
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fi
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#if the cluster is being stopped then do not restart it again.
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zparent=`$bin/hbase org.apache.hadoop.hbase.util.HBaseConfTool zookeeper.znode.parent`
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if [ "$zparent" == "null" ]; then zparent="/hbase"; fi
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zshutdown=`$bin/hbase org.apache.hadoop.hbase.util.HBaseConfTool zookeeper.znode.state`
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if [ "$zshutdown" == "null" ]; then zshutdown="shutdown"; fi
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zFullShutdown=$zparent/$zshutdown
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$bin/hbase zkcli stat $zFullShutdown 2>&1 | grep "Node does not exist" 1>/dev/null 2>&1
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#grep returns 0 if it found something, 1 otherwise
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if [ $? -eq 0 ]; then
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exit 1
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fi
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#If ZooKeeper cannot be found, then do not restart
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$bin/hbase zkcli stat $zFullShutdown 2>&1 | grep Exception | grep ConnectionLoss 1>/dev/null 2>&1
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if [ $? -eq 0 ]; then
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exit 1
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fi
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#if it was launched less than 5 minutes ago, then wait for 5 minutes before starting it again.
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curDate=`date +%s`
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limitDate=`expr $lastLaunchDate + 300`
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if [ $limitDate -gt $curDate ]; then
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sleep 300
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fi
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done
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;;
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(stop)
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(stop)
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rm -f "$HBASE_START_FILE"
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if [ -f $pid ]; then
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# kill -0 == see if the PID exists
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if kill -0 `cat $pid` > /dev/null 2>&1; then
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pidToKill=`cat $pid`
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# kill -0 == see if the PID exists
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if kill -0 $pidToKill > /dev/null 2>&1; then
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echo -n stopping $command
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echo "`date` Terminating $command" >> $loglog
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kill `cat $pid` > /dev/null 2>&1
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while kill -0 `cat $pid` > /dev/null 2>&1; do
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echo -n "."
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sleep 1;
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done
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kill $pidToKill > /dev/null 2>&1
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while kill -0 $pidToKill > /dev/null 2>&1;
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do
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echo -n "."
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sleep 1;
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done
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rm $pid
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echo
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else
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retval=$?
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echo no $command to stop because kill -0 of pid `cat $pid` failed with status $retval
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echo no $command to stop because kill -0 of pid $pidToKill failed with status $retval
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fi
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else
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echo no $command to stop because no pid file $pid
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fi
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;;
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;;
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(restart)
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(restart)
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# stop the command
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$thiscmd --config "${HBASE_CONF_DIR}" stop $command $args &
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wait_until_done $!
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@ -207,12 +263,10 @@ case $startStop in
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# start the command
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$thiscmd --config "${HBASE_CONF_DIR}" start $command $args &
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wait_until_done $!
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;;
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(*)
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echo $usage
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exit 1
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;;
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;;
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(*)
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echo $usage
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exit 1
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;;
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esac
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@ -38,17 +38,25 @@ then
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exit $errCode
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fi
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if [ "$1" = "autorestart" ]
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then
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commandToRun="autorestart"
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else
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commandToRun="start"
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fi
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distMode=`$bin/hbase --config "$HBASE_CONF_DIR" org.apache.hadoop.hbase.util.HBaseConfTool hbase.cluster.distributed`
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if [ "$distMode" == 'false' ]
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then
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"$bin"/hbase-daemon.sh start master
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"$bin"/hbase-daemon.sh $commandToRun master
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else
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"$bin"/hbase-daemons.sh --config "${HBASE_CONF_DIR}" start zookeeper
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"$bin"/hbase-daemon.sh --config "${HBASE_CONF_DIR}" start master
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"$bin"/hbase-daemons.sh --config "${HBASE_CONF_DIR}" $commandToRun zookeeper
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"$bin"/hbase-daemon.sh --config "${HBASE_CONF_DIR}" $commandToRun master
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"$bin"/hbase-daemons.sh --config "${HBASE_CONF_DIR}" \
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--hosts "${HBASE_REGIONSERVERS}" start regionserver
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--hosts "${HBASE_REGIONSERVERS}" $commandToRun regionserver
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"$bin"/hbase-daemons.sh --config "${HBASE_CONF_DIR}" \
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--hosts "${HBASE_BACKUP_MASTERS}" start master-backup
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--hosts "${HBASE_BACKUP_MASTERS}" $commandToRun master-backup
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fi
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