hbase/bin/hbase-daemon.sh

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#!/usr/bin/env bash
#
#/**
# * Copyright 2007 The Apache Software Foundation
# *
# * 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
#
# HADOOP_CONF_DIR Alternate conf dir. Default is ${HADOOP_HOME}/conf.
# HBASE_CONF_DIR Alternate hbase conf dir. Default is ${HBASE_HOME}/conf.
# HADOOP_LOG_DIR Where log files are stored. PWD by default.
# HADOOP_PID_DIR The pid files are stored. /tmp by default.
# HADOOP_IDENT_STRING A string representing this instance of hadoop. $USER by default
# HADOOP_NICENESS The scheduling priority for daemons. Defaults to 0.
#
# Modelled after $HADOOP_HOME/bin/hadoop-daemon.sh
usage="Usage: hbase-daemon.sh [--config <hadoop-conf-dir>]\
[--hbaseconfig <hbase-conf-dir>] (start|stop) <hbase-command> \
<args...>"
# if no args specified, show usage
if [ $# -le 1 ]; then
echo $usage
exit 1
fi
bin=`dirname "$0"`
bin=`cd "$bin"; pwd`
. "$bin"/hbase-config.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.$prev" ] && mv "$log.$prev" "$log.$num"
num=$prev
done
mv "$log" "$log.$num";
fi
}
if [ -f "${HADOOP_CONF_DIR}/hadoop-env.sh" ]; then
. "${HADOOP_CONF_DIR}/hadoop-env.sh"
fi
if [ -f "${HBASE_CONF_DIR}/hbase-env.sh" ]; then
. "${HBASE_CONF_DIR}/hbase-env.sh"
fi
# get log directory
if [ "$HADOOP_LOG_DIR" = "" ]; then
export HADOOP_LOG_DIR="$HADOOP_HOME/logs"
fi
mkdir -p "$HADOOP_LOG_DIR"
if [ "$HADOOP_PID_DIR" = "" ]; then
HADOOP_PID_DIR=/tmp
fi
if [ "$HADOOP_IDENT_STRING" = "" ]; then
export HADOOP_IDENT_STRING="$USER"
fi
# some variables
export HADOOP_LOGFILE=hbase-$HADOOP_IDENT_STRING-$command-$HOSTNAME.log
export HADOOP_ROOT_LOGGER="INFO,DRFA"
log=$HADOOP_LOG_DIR/hbase-$HADOOP_IDENT_STRING-$command-$HOSTNAME.out
pid=$HADOOP_PID_DIR/hbase-$HADOOP_IDENT_STRING-$command.pid
# Set default scheduling priority
if [ "$HADOOP_NICENESS" = "" ]; then
export HADOOP_NICENESS=0
fi
case $startStop in
(start)
if [ -f $pid ]; then
if kill -0 `cat $pid` > /dev/null 2>&1; then
echo $command running as process `cat $pid`. Stop it first.
exit 1
fi
fi
hbase_rotate_log $log
echo starting $command, logging to $log
nohup nice -n $HADOOP_NICENESS "$HBASE_HOME"/bin/hbase \
--hadoop "${HADOOP_HOME}" \
--config "${HADOOP_CONF_DIR}" --hbaseconfig "${HBASE_CONF_DIR}" \
$command $startStop "$@" > "$log" 2>&1 < /dev/null &
echo $! > $pid
sleep 1; head "$log"
;;
(stop)
if [ -f $pid ]; then
if kill -0 `cat $pid` > /dev/null 2>&1; then
echo -n stopping $command
if [ "$command" = "master" ]; then
nohup nice -n $HADOOP_NICENESS "$HBASE_HOME"/bin/hbase \
--hadoop "${HADOOP_HOME}" \
--config "${HADOOP_CONF_DIR}" --hbaseconfig "${HBASE_CONF_DIR}" \
$command $startStop "$@" > "$log" 2>&1 < /dev/null &
else
kill `cat $pid` > /dev/null 2>&1
fi
while kill -0 `cat $pid` > /dev/null 2>&1; do
echo -n "."
sleep 1;
done
echo
else
echo no $command to stop
fi
else
echo no $command to stop
fi
;;
(*)
echo $usage
exit 1
;;
esac