| #!/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. |
| # */ |
| # |
| # Run a shell command on all regionserver hosts. |
| # |
| # Environment Variables |
| # |
| # HBASE_REGIONSERVERS File naming remote hosts. |
| # Default is ${HADOOP_CONF_DIR}/regionservers |
| # HADOOP_CONF_DIR Alternate conf dir. Default is ${HADOOP_HOME}/conf. |
| # HBASE_CONF_DIR Alternate hbase conf dir. Default is ${HBASE_HOME}/conf. |
| # HADOOP_SLAVE_SLEEP Seconds to sleep between spawning remote commands. |
| # HADOOP_SSH_OPTS Options passed to ssh when running remote commands. |
| # |
| # Modelled after $HADOOP_HOME/bin/slaves.sh. |
| |
| usage="Usage: regionservers [--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` |
| |
| . "$bin"/hbase-config.sh |
| |
| # If the regionservers file is specified in the command line, |
| # then it takes precedence over the definition in |
| # hbase-env.sh. Save it here. |
| HOSTLIST=$HBASE_REGIONSERVERS |
| |
| if [ "$HOSTLIST" = "" ]; then |
| if [ "$HBASE_REGIONSERVERS" = "" ]; then |
| export HOSTLIST="${HBASE_CONF_DIR}/regionservers" |
| else |
| export HOSTLIST="${HBASE_REGIONSERVERS}" |
| fi |
| fi |
| |
| for regionserver in `cat "$HOSTLIST"`; do |
| if ${HBASE_SLAVE_PARALLEL:-true}; then |
| ssh $HBASE_SSH_OPTS $regionserver $"${@// /\\ }" \ |
| 2>&1 | sed "s/^/$regionserver: /" & |
| else # run each command serially |
| ssh $HBASE_SSH_OPTS $regionserver $"${@// /\\ }" \ |
| 2>&1 | sed "s/^/$regionserver: /" |
| fi |
| if [ "$HBASE_SLAVE_SLEEP" != "" ]; then |
| sleep $HBASE_SLAVE_SLEEP |
| fi |
| done |
| |
| wait |