hbase/bin/zookeepers.sh

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#!/usr/bin/env bash
#
#/**
# * Copyright 2009 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.
# */
#
# Run a shell command on all zookeeper hosts.
#
# Environment Variables
#
# HBASE_CONF_DIR Alternate hbase conf dir. Default is ${HBASE_HOME}/conf.
# HBASE_SLAVE_SLEEP Seconds to sleep between spawning remote commands.
# HBASE_SSH_OPTS Options passed to ssh when running remote commands.
#
# Modelled after $HADOOP_HOME/bin/slaves.sh.
usage="Usage: zookeepers [--config <hbase-confdir>] command..."
# if no args specified, show usage
if [ $# -le 0 ]; then
echo $usage
exit 1
fi
bin=`dirname "${BASH_SOURCE-$0}"`
bin=`cd "$bin">/dev/null; pwd`
. "$bin"/hbase-config.sh
if [ "$HBASE_MANAGES_ZK" = "" ]; then
HBASE_MANAGES_ZK=true
fi
if [ "$HBASE_MANAGES_ZK" = "true" ]; then
hosts=`"$bin"/hbase org.apache.hadoop.hbase.zookeeper.ZKServerTool`
cmd=$"${@// /\\ }"
for zookeeper in $hosts; do
ssh $HBASE_SSH_OPTS $zookeeper $cmd 2>&1 | sed "s/^/$zookeeper: /" &
if [ "$HBASE_SLAVE_SLEEP" != "" ]; then
sleep $HBASE_SLAVE_SLEEP
fi
done
fi
wait