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#!/usr/bin/env bash
#
#/**
# * Licensed to the Apache Software Foundation (ASF) under one
# * or more contributor license agreements. See the NOTICE file
# * distributed with this work for additional information
# * regarding copyright ownership. The ASF licenses this file
# * to you under the Apache License, Version 2.0 (the
# * "License"); you may not use this file except in compliance
# * with the License. You may obtain a copy of the License at
# *
# * http://www.apache.org/licenses/LICENSE-2.0
# *
# * Unless required by applicable law or agreed to in writing, software
# * distributed under the License is distributed on an "AS IS" BASIS,
# * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# * See the License for the specific language governing permissions and
# * limitations under the License.
# */
#
# Runs a Hadoop hbase command as a daemon.
#
# Environment Variables
#
# HBASE_CONF_DIR Alternate hbase conf dir. Default is ${HBASE_HOME}/conf.
# HBASE_LOG_DIR Where log files are stored. PWD by default.
# HBASE_PID_DIR The pid files are stored. /tmp by default.
# HBASE_IDENT_STRING A string representing this instance of hadoop. $USER by default
# HBASE_NICENESS The scheduling priority for daemons. Defaults to 0.
# HBASE_STOP_TIMEOUT Time, in seconds, after which we kill -9 the server if it has not stopped.
# Default 1200 seconds.
#
# Modelled after $HADOOP_HOME/bin/hadoop-daemon.sh
usage="Usage: hbase-daemon.sh [--config <conf-dir>]\
[--autostart-window-size <window size in hours>]\
[--autostart-window-retry-limit <retry count limit for autostart>]\
(start|stop|restart|autostart|autorestart|foreground_start) <hbase-command> \
<args...>"
# if no args specified, show usage
if [ $# -le 1 ]; then
echo $usage
exit 1
fi
# default autostart args value indicating infinite window size and no retry limit
AUTOSTART_WINDOW_SIZE=0
AUTOSTART_WINDOW_RETRY_LIMIT=0
bin=`dirname "${BASH_SOURCE-$0}"`
bin=`cd "$bin">/dev/null; pwd`
. "$bin"/hbase-config.sh
. "$bin"/hbase-common.sh
# get arguments
startStop=$1
shift
command=$1
shift
hbase_rotate_log ()
{
log=$1;
num=5;
if [ -n "$2" ]; then
num=$2
fi
if [ -f "$log" ]; then # rotate logs
while [ $num -gt 1 ]; do
prev=`expr $num - 1`
[ -f "$log.$prev" ] && mv -f "$log.$prev" "$log.$num"
num=$prev
done
mv -f "$log" "$log.$num";
fi
}
cleanAfterRun() {
if [ -f ${HBASE_PID} ]; then
# If the process is still running time to tear it down.
kill -9 `cat ${HBASE_PID}` > /dev/null 2>&1
rm -f ${HBASE_PID} > /dev/null 2>&1
fi
if [ -f ${HBASE_ZNODE_FILE} ]; then
if [ "$command" = "master" ]; then
HBASE_OPTS="$HBASE_OPTS $HBASE_MASTER_OPTS" $bin/hbase master clear > /dev/null 2>&1
else
#call ZK to delete the node
ZNODE=`cat ${HBASE_ZNODE_FILE}`
HBASE_OPTS="$HBASE_OPTS $HBASE_REGIONSERVER_OPTS" $bin/hbase zkcli delete ${ZNODE} > /dev/null 2>&1
fi
rm ${HBASE_ZNODE_FILE}
fi
}
check_before_start(){
#ckeck if the process is not running
mkdir -p "$HBASE_PID_DIR"
if [ -f $HBASE_PID ]; then
if kill -0 `cat $HBASE_PID` > /dev/null 2>&1; then
echo $command running as process `cat $HBASE_PID`. Stop it first.
exit 1
fi
fi
}
wait_until_done ()
{
p=$1
cnt=${HBASE_SLAVE_TIMEOUT:-300}
origcnt=$cnt
while kill -0 $p > /dev/null 2>&1; do
if [ $cnt -gt 1 ]; then
cnt=`expr $cnt - 1`
sleep 1
else
echo "Process did not complete after $origcnt seconds, killing."
kill -9 $p
exit 1
fi
done
return 0
}
# get log directory
if [ "$HBASE_LOG_DIR" = "" ]; then
export HBASE_LOG_DIR="$HBASE_HOME/logs"
fi
mkdir -p "$HBASE_LOG_DIR"
if [ "$HBASE_PID_DIR" = "" ]; then
HBASE_PID_DIR=/tmp
fi
if [ "$HBASE_IDENT_STRING" = "" ]; then
export HBASE_IDENT_STRING="$USER"
fi
# Some variables
# Work out java location so can print version into log.
if [ "$JAVA_HOME" != "" ]; then
#echo "run java in $JAVA_HOME"
JAVA_HOME=$JAVA_HOME
fi
if [ "$JAVA_HOME" = "" ]; then
echo "Error: JAVA_HOME is not set."
exit 1
fi
JAVA=$JAVA_HOME/bin/java
export HBASE_LOG_PREFIX=hbase-$HBASE_IDENT_STRING-$command-$HOSTNAME
export HBASE_LOGFILE=$HBASE_LOG_PREFIX.log
if [ -z "${HBASE_ROOT_LOGGER}" ]; then
export HBASE_ROOT_LOGGER=${HBASE_ROOT_LOGGER:-"INFO,RFA"}
fi
if [ -z "${HBASE_SECURITY_LOGGER}" ]; then
export HBASE_SECURITY_LOGGER=${HBASE_SECURITY_LOGGER:-"INFO,RFAS"}
fi
HBASE_LOGOUT=${HBASE_LOGOUT:-"$HBASE_LOG_DIR/$HBASE_LOG_PREFIX.out"}
HBASE_LOGGC=${HBASE_LOGGC:-"$HBASE_LOG_DIR/$HBASE_LOG_PREFIX.gc"}
HBASE_LOGLOG=${HBASE_LOGLOG:-"${HBASE_LOG_DIR}/${HBASE_LOGFILE}"}
HBASE_PID=$HBASE_PID_DIR/hbase-$HBASE_IDENT_STRING-$command.pid
export HBASE_ZNODE_FILE=$HBASE_PID_DIR/hbase-$HBASE_IDENT_STRING-$command.znode
export HBASE_AUTOSTART_FILE=$HBASE_PID_DIR/hbase-$HBASE_IDENT_STRING-$command.autostart
if [ -n "$SERVER_GC_OPTS" ]; then
export SERVER_GC_OPTS=${SERVER_GC_OPTS/"-Xloggc:<FILE-PATH>"/"-Xloggc:${HBASE_LOGGC}"}
fi
if [ -n "$CLIENT_GC_OPTS" ]; then
export CLIENT_GC_OPTS=${CLIENT_GC_OPTS/"-Xloggc:<FILE-PATH>"/"-Xloggc:${HBASE_LOGGC}"}
fi
# Set default scheduling priority
if [ "$HBASE_NICENESS" = "" ]; then
export HBASE_NICENESS=0
fi
thiscmd="$bin/$(basename ${BASH_SOURCE-$0})"
args=$@
case $startStop in
(start)
check_before_start
hbase_rotate_log $HBASE_LOGOUT
hbase_rotate_log $HBASE_LOGGC
echo running $command, logging to $HBASE_LOGOUT
$thiscmd --config "${HBASE_CONF_DIR}" \
foreground_start $command $args < /dev/null > ${HBASE_LOGOUT} 2>&1 &
disown -h -r
sleep 1; head "${HBASE_LOGOUT}"
;;
(autostart)
check_before_start
hbase_rotate_log $HBASE_LOGOUT
hbase_rotate_log $HBASE_LOGGC
echo running $command, logging to $HBASE_LOGOUT
nohup $thiscmd --config "${HBASE_CONF_DIR}" --autostart-window-size ${AUTOSTART_WINDOW_SIZE} --autostart-window-retry-limit ${AUTOSTART_WINDOW_RETRY_LIMIT} \
internal_autostart $command $args < /dev/null > ${HBASE_LOGOUT} 2>&1 &
;;
(autorestart)
echo running $command, logging to $HBASE_LOGOUT
# stop the command
$thiscmd --config "${HBASE_CONF_DIR}" stop $command $args &
wait_until_done $!
# wait a user-specified sleep period
sp=${HBASE_RESTART_SLEEP:-3}
if [ $sp -gt 0 ]; then
sleep $sp
fi
check_before_start
hbase_rotate_log $HBASE_LOGOUT
nohup $thiscmd --config "${HBASE_CONF_DIR}" --autostart-window-size ${AUTOSTART_WINDOW_SIZE} --autostart-window-retry-limit ${AUTOSTART_WINDOW_RETRY_LIMIT} \
internal_autostart $command $args < /dev/null > ${HBASE_LOGOUT} 2>&1 &
;;
(foreground_start)
trap cleanAfterRun SIGHUP SIGINT SIGTERM EXIT
if [ "$HBASE_NO_REDIRECT_LOG" != "" ]; then
# NO REDIRECT
echo "`date` Starting $command on `hostname`"
echo "`ulimit -a`"
# in case the parent shell gets the kill make sure to trap signals.
# Only one will get called. Either the trap or the flow will go through.
nice -n $HBASE_NICENESS "$HBASE_HOME"/bin/hbase \
--config "${HBASE_CONF_DIR}" \
$command "$@" start &
else
echo "`date` Starting $command on `hostname`" >> ${HBASE_LOGLOG}
echo "`ulimit -a`" >> "$HBASE_LOGLOG" 2>&1
# in case the parent shell gets the kill make sure to trap signals.
# Only one will get called. Either the trap or the flow will go through.
nice -n $HBASE_NICENESS "$HBASE_HOME"/bin/hbase \
--config "${HBASE_CONF_DIR}" \
$command "$@" start >> ${HBASE_LOGOUT} 2>&1 &
fi
# Add to the command log file vital stats on our environment.
hbase_pid=$!
echo $hbase_pid > ${HBASE_PID}
wait $hbase_pid
;;
(internal_autostart)
ONE_HOUR_IN_SECS=3600
autostartWindowStartDate=`date +%s`
autostartCount=0
touch "$HBASE_AUTOSTART_FILE"
# keep starting the command until asked to stop. Reloop on software crash
while true
do
hbase_rotate_log $HBASE_LOGGC
if [ -f $HBASE_PID ] && kill -0 "$(cat "$HBASE_PID")" > /dev/null 2>&1 ; then
wait "$(cat "$HBASE_PID")"
else
#if the file does not exist it means that it was not stopped properly by the stop command
if [ ! -f "$HBASE_AUTOSTART_FILE" ]; then
echo "`date` HBase might be stopped removing the autostart file. Exiting Autostart process" >> ${HBASE_LOGOUT}
exit 1
fi
echo "`date` Autostarting hbase $command service. Attempt no: $(( $autostartCount + 1))" >> ${HBASE_LOGLOG}
touch "$HBASE_AUTOSTART_FILE"
$thiscmd --config "${HBASE_CONF_DIR}" foreground_start $command $args
autostartCount=$(( $autostartCount + 1 ))
# HBASE-6504 - only take the first line of the output in case verbose gc is on
distMode=`$bin/hbase --config "$HBASE_CONF_DIR" org.apache.hadoop.hbase.util.HBaseConfTool hbase.cluster.distributed | head -n 1`
if [ "$distMode" != 'false' ]; then
#if the cluster is being stopped then do not restart it again.
zparent=`$bin/hbase org.apache.hadoop.hbase.util.HBaseConfTool zookeeper.znode.parent`
if [ "$zparent" == "null" ]; then zparent="/hbase"; fi
zkrunning=`$bin/hbase org.apache.hadoop.hbase.util.HBaseConfTool zookeeper.znode.state`
if [ "$zkrunning" == "null" ]; then zkrunning="running"; fi
zkFullRunning=$zparent/$zkrunning
$bin/hbase zkcli stat $zkFullRunning 2>&1 | grep "Node does not exist" 1>/dev/null 2>&1
#grep returns 0 if it found something, 1 otherwise
if [ $? -eq 0 ]; then
echo "`date` hbase znode does not exist. Exiting Autostart process" >> ${HBASE_LOGOUT}
rm -f "$HBASE_AUTOSTART_FILE"
exit 1
fi
#If ZooKeeper cannot be found, then do not restart
$bin/hbase zkcli stat $zkFullRunning 2>&1 | grep Exception | grep ConnectionLoss 1>/dev/null 2>&1
if [ $? -eq 0 ]; then
echo "`date` zookeeper not found. Exiting Autostart process" >> ${HBASE_LOGOUT}
rm -f "$HBASE_AUTOSTART_FILE"
exit 1
fi
fi
fi
curDate=`date +%s`
autostartWindowReset=false
# reset the auto start window size if it exceeds
if [ $AUTOSTART_WINDOW_SIZE -gt 0 ] && [ $(( $curDate - $autostartWindowStartDate )) -gt $(( $AUTOSTART_WINDOW_SIZE * $ONE_HOUR_IN_SECS )) ]; then
echo "Resetting Autorestart window size: $autostartWindowStartDate" >> ${HBASE_LOGOUT}
autostartWindowStartDate=$curDate
autostartWindowReset=true
autostartCount=0
fi
# kill autostart if the retry limit is exceeded within the given window size (window size other then 0)
if ! $autostartWindowReset && [ $AUTOSTART_WINDOW_RETRY_LIMIT -gt 0 ] && [ $autostartCount -gt $AUTOSTART_WINDOW_RETRY_LIMIT ]; then
echo "`date` Autostart window retry limit: $AUTOSTART_WINDOW_RETRY_LIMIT exceeded for given window size: $AUTOSTART_WINDOW_SIZE hours.. Exiting..." >> ${HBASE_LOGLOG}
rm -f "$HBASE_AUTOSTART_FILE"
exit 1
fi
# wait for shutdown hook to complete
sleep 20
done
;;
(stop)
echo running $command, logging to $HBASE_LOGOUT
rm -f "$HBASE_AUTOSTART_FILE"
if [ -f $HBASE_PID ]; then
pidToKill=`cat $HBASE_PID`
# kill -0 == see if the PID exists
if kill -0 $pidToKill > /dev/null 2>&1; then
echo -n stopping $command
echo "`date` Terminating $command" >> $HBASE_LOGLOG
kill $pidToKill > /dev/null 2>&1
waitForProcessEnd $pidToKill $command
else
retval=$?
echo no $command to stop because kill -0 of pid $pidToKill failed with status $retval
fi
else
echo no $command to stop because no pid file $HBASE_PID
fi
rm -f $HBASE_PID
;;
(restart)
echo running $command, logging to $HBASE_LOGOUT
# stop the command
$thiscmd --config "${HBASE_CONF_DIR}" stop $command $args &
wait_until_done $!
# wait a user-specified sleep period
sp=${HBASE_RESTART_SLEEP:-3}
if [ $sp -gt 0 ]; then
sleep $sp
fi
# start the command
$thiscmd --config "${HBASE_CONF_DIR}" start $command $args &
wait_until_done $!
;;
(*)
echo $usage
exit 1
;;
esac