Author: stack
Date: Thu May 30 17:16:01 2013
New Revision: 1487937
URL: http://svn.apache.org/r1487937
Log:
HBASE-7244 Provide a command or argument to startup, that formats znodes if
provided; FORGOT TO SVN ADD bin/hbase-cleanup.sh
Added:
hbase/branches/0.95/bin/hbase-cleanup.sh
Added: hbase/branches/0.95/bin/hbase-cleanup.sh
URL:
http://svn.apache.org/viewvc/hbase/branches/0.95/bin/hbase-cleanup.sh?rev=1487937&view=auto
==============================================================================
--- hbase/branches/0.95/bin/hbase-cleanup.sh (added)
+++ hbase/branches/0.95/bin/hbase-cleanup.sh Thu May 30 17:16:01 2013
@@ -0,0 +1,146 @@
+#!/usr/bin/env bash
+#
+#/**
+# * 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.
+# */
+#
+# cleans hbase related data from zookeeper and hdfs if no hbase process is
alive.
+#
+# 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_SLAVE_TIMEOUT Seconds to wait for timing out a remote command.
+# HADOOP_SSH_OPTS Options passed to ssh when running remote commands.
+#
+
+usage="Usage: hbase-cleanup.sh (zk|hdfs|all)"
+
+bin=`dirname "$0"`
+bin=`cd "$bin">/dev/null; pwd`
+
+# This will set HBASE_HOME, etc.
+. "$bin"/hbase-config.sh
+
+case $1 in
+ --cleanZk|--cleanHdfs|--cleanAll)
+ matches="yes" ;;
+ *) ;;
+esac
+if [ $# -ne 1 -o "$matches" = "" ]; then
+ echo $usage
+ exit 1;
+fi
+
+format_option=$1;
+
+distMode=`$bin/hbase org.apache.hadoop.hbase.util.HBaseConfTool
hbase.cluster.distributed | head -n 1`
+
+if [ "$distMode" == 'false' ];then
+ echo "Skipping hbase data clearing in standalone mode." 2>&1
+ exit 1;
+fi
+
+zparent=`$bin/hbase org.apache.hadoop.hbase.util.HBaseConfTool
zookeeper.znode.parent`
+if [ "$zparent" == "null" ]; then zparent="/hbase"; fi
+
+hrootdir=`$bin/hbase org.apache.hadoop.hbase.util.HBaseConfTool hbase.rootdir`
+if [ "$hrootdir" == "null" ]; then hrootdir="file:///tmp/hbase-${USER}/hbase";
fi
+
+check_for_znodes() {
+ command=$1;
+ case $command in
+ regionservers)
+ zchild=`$bin/hbase org.apache.hadoop.hbase.util.HBaseConfTool
zookeeper.znode.rs`
+ if [ "$zchild" == "null" ]; then zchild="rs"; fi
+ ;;
+ backupmasters)
+ zchild=`$bin/hbase org.apache.hadoop.hbase.util.HBaseConfTool
zookeeper.znode.backup.masters`
+ if [ "$zchild" == "null" ]; then zchild="backup-masters"; fi
+ ;;
+ esac
+ znodes=`"$bin"/hbase zkcli ls $zparent/$zchild 2>&1 | tail -1 | sed "s/\[//"
| sed "s/\]//"`
+ if [ "$znodes" != "" ]; then
+ echo -n "ZNode(s) [${znodes}] of $command are not expired. Exiting without
cleaning hbase data."
+ echo #force a newline
+ exit 1;
+ else
+ echo -n "All ZNode(s) of $command are expired."
+ fi
+ echo #force a newline
+}
+
+execute_zk_command() {
+ command=$1;
+ "$bin"/hbase zkcli $command 2>&1
+}
+
+execute_hdfs_command() {
+ command=$1;
+ "$bin"/hbase org.apache.hadoop.fs.FsShell $command 2>&1
+}
+
+clean_up() {
+ case $1 in
+ --cleanZk)
+ execute_zk_command "rmr ${zparent}";
+ ;;
+ --cleanHdfs)
+ execute_hdfs_command "-rmr ${hrootdir}"
+ ;;
+ --cleanAll)
+ execute_zk_command "rmr ${zparent}";
+ execute_hdfs_command "-rmr ${hrootdir}"
+ ;;
+ *)
+ ;;
+ esac
+}
+
+check_znode_exists() {
+ command=$1
+ "$bin"/hbase zkcli stat $command 2>&1 | grep "Node does not
exist\|Connection refused"
+}
+
+check_znode_exists $zparent
+if [ $? -ne 0 ]; then
+ # make sure the online region server(s) znode(s) have been deleted before
continuing
+ check_for_znodes regionservers
+ # make sure the backup master(s) znode(s) has been deleted before continuing
+ check_for_znodes backupmasters
+ # make sure the master znode has been deleted before continuing
+ zmaster=`$bin/hbase org.apache.hadoop.hbase.util.HBaseConfTool
zookeeper.znode.master`
+ if [ "$zmaster" == "null" ]; then zmaster="master"; fi
+ zmaster=$zparent/$zmaster
+ check_znode_exists $zmaster
+ if [ $? -ne 0 ]; then
+ echo -n "Master ZNode is not expired. Exiting without cleaning hbase data."
+ echo #force a new line
+ exit 1
+ else
+ echo "Active Master ZNode also expired."
+ fi
+ echo #force a newline
+else
+ echo "HBase parent znode ${zparent} does not exist."
+fi
+
+# cleans zookeeper and/or hdfs data.
+clean_up $format_option
