105 lines
3.7 KiB
Bash
105 lines
3.7 KiB
Bash
#!/usr/bin/env bash
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#
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#/**
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# * Copyright 2011 The Apache Software Foundation
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# *
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# * Licensed to the Apache Software Foundation (ASF) under one
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# * or more contributor license agreements. See the NOTICE file
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# * distributed with this work for additional information
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# * regarding copyright ownership. The ASF licenses this file
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# * to you under the Apache License, Version 2.0 (the
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# * "License"); you may not use this file except in compliance
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# * with the License. You may obtain a copy of the License at
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# *
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# * http://www.apache.org/licenses/LICENSE-2.0
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# *
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# * Unless required by applicable law or agreed to in writing, software
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# * distributed under the License is distributed on an "AS IS" BASIS,
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# * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# * See the License for the specific language governing permissions and
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# * limitations under the License.
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# */
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# Move regions off a server then stop it. Optionally restart and reload.
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# Turn off the balancer before running this script.
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function usage {
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echo "Usage: graceful_stop.sh [--config <conf-dir>] [--restart [--reload]] [--thrift] [--rest] <hostname>"
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echo " thrift If we should stop/start thrift before/after the hbase stop/start"
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echo " rest If we should stop/start rest before/after the hbase stop/start"
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echo " restart If we should restart after graceful stop"
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echo " reload Move offloaded regions back on to the restarted server"
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echo " debug Print helpful debug information"
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echo " hostname Hostname of server we are to stop"
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exit 1
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}
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if [ $# -lt 1 ]; then
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usage
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fi
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bin=`dirname "$0"`
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bin=`cd "$bin">/dev/null; pwd`
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# This will set HBASE_HOME, etc.
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. "$bin"/hbase-config.sh
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# Get arguments
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restart=
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reload=
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debug=
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thrift=
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rest=
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while [ $# -gt 0 ]
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do
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case "$1" in
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--thrift) thrift=true; shift;;
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--rest) rest=true; shift;;
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--restart) restart=true; shift;;
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--reload) reload=true; shift;;
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--debug) debug="--debug"; shift;;
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--) shift; break;;
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-*) usage ;;
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*) break;; # terminate while loop
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esac
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done
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# "$@" contains the rest. Must be at least the hostname left.
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if [ $# -lt 1 ]; then
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usage
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fi
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hostname=$1
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filename="/tmp/$hostname"
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# Run the region mover script.
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echo "Disabling balancer!"
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echo 'balance_switch false' | "$bin"/hbase --config ${HBASE_CONF_DIR} shell
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echo "Unloading $hostname region(s)"
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HBASE_NOEXEC=true "$bin"/hbase --config ${HBASE_CONF_DIR} org.jruby.Main "$bin"/region_mover.rb --file=$filename $debug unload $hostname
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echo "Unloaded $hostname region(s)"
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# Stop the server. Have to put hostname into its own little file for hbase-daemons.sh
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hosts="/tmp/$(basename $0).$$.tmp"
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echo $hostname >> $hosts
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if [ "$thrift" != "" ]; then
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"$bin"/hbase-daemons.sh --config ${HBASE_CONF_DIR} --hosts ${hosts} stop thrift
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fi
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if [ "$rest" != "" ]; then
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"$bin"/hbase-daemons.sh --config ${HBASE_CONF_DIR} --hosts ${hosts} stop rest
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fi
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"$bin"/hbase-daemons.sh --config ${HBASE_CONF_DIR} --hosts ${hosts} stop regionserver
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if [ "$restart" != "" ]; then
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"$bin"/hbase-daemons.sh --config ${HBASE_CONF_DIR} --hosts ${hosts} start regionserver
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if [ "$thrift" != "" ]; then
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# -b 0.0.0.0 says listen on all interfaces rather than just default.
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"$bin"/hbase-daemons.sh --config ${HBASE_CONF_DIR} --hosts ${hosts} start thrift -b 0.0.0.0
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fi
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if [ "$rest" != "" ]; then
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"$bin"/hbase-daemons.sh --config ${HBASE_CONF_DIR} --hosts ${hosts} start rest
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fi
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if [ "$reload" != "" ]; then
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echo "Reloading $hostname region(s)"
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HBASE_NOEXEC=true "$bin"/hbase --config ${HBASE_CONF_DIR} org.jruby.Main "$bin"/region_mover.rb --file=$filename $debug load $hostname
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echo "Reloaded $hostname region(s)"
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fi
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fi
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# Cleanup tmp files.
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trap "rm -f "/tmp/$(basename $0).*.tmp" &> /dev/null" EXIT
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