bin/considerAsDead.sh

   1 #!/usr/bin/env bash
   2 #
   3 #/**
   4 # * Licensed to the Apache Software Foundation (ASF) under one
   5 # * or more contributor license agreements.  See the NOTICE file
   6 # * distributed with this work for additional information
   7 # * regarding copyright ownership.  The ASF licenses this file
   8 # * to you under the Apache License, Version 2.0 (the
   9 # * "License"); you may not use this file except in compliance
  10 # * with the License.  You may obtain a copy of the License at
  11 # *
  12 # *     http://www.apache.org/licenses/LICENSE-2.0
  13 # *
  14 # * Unless required by applicable law or agreed to in writing, software
  15 # * distributed under the License is distributed on an "AS IS" BASIS,
  16 # * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  17 # * See the License for the specific language governing permissions and
  18 # * limitations under the License.
  19 # */
  20 #
  21
  22 usage="Usage: considerAsDead.sh --hostname serverName"
  23
  24 # if no args specified, show usage
  25 if [ $# -le 1 ]; then
  26   echo $usage
  27   exit 1
  28 fi
  29
  30 bin=`dirname "${BASH_SOURCE-$0}"`
  31 bin=`cd "$bin">/dev/null; pwd`
  32
  33 . $bin/hbase-config.sh
  34
  35 shift
  36 deadhost=$@
  37
  38 remote_cmd="cd ${HBASE_HOME}; $bin/hbase-daemon.sh --config ${HBASE_CONF_DIR} restart"
  39
  40 zparent=`$bin/hbase org.apache.hadoop.hbase.util.HBaseConfTool zookeeper.znode.parent`
  41 if [ "$zparent" == "null" ]; then zparent="/hbase"; fi
  42
  43 zkrs=`$bin/hbase org.apache.hadoop.hbase.util.HBaseConfTool zookeeper.znode.rs`
  44 if [ "$zkrs" == "null" ]; then zkrs="rs"; fi
  45
  46 zkrs="$zparent/$zkrs"
  47 online_regionservers=`$bin/hbase zkcli ls $zkrs 2>&1 | tail -1 | sed "s/\[//" | sed "s/\]//"`
  48 for rs in $online_regionservers
  49 do
  50     rs_parts=(${rs//,/ })
  51     hostname=${rs_parts[0]}
  52     echo $deadhost
  53     echo $hostname
  54     if [ "$deadhost" == "$hostname" ]; then
  55                 znode="$zkrs/$rs"
  56                 echo "ZNode Deleting:" $znode
  57                 $bin/hbase zkcli delete $znode > /dev/null 2>&1
  58                 sleep 1
  59                 ssh $HBASE_SSH_OPTS $hostname $remote_cmd 2>&1 | sed "s/^/$hostname: /"
  60     fi
  61 done