hbase/contrib/mdc_replication/bin/copy_tables_desc.rb

82 lines
2.5 KiB
Ruby

#
# Copyright 2010 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.
#
# Script to recreate all tables from one cluster to another
# To see usage for this script, run:
#
# ${HBASE_HOME}/bin/hbase org.jruby.Main copy_tables_desc.rb
#
include Java
import org.apache.commons.logging.LogFactory
import org.apache.hadoop.hbase.HBaseConfiguration
import org.apache.hadoop.hbase.HConstants
import org.apache.hadoop.hbase.EmptyWatcher
import org.apache.hadoop.hbase.client.HBaseAdmin
import org.apache.hadoop.hbase.HTableDescriptor
import org.apache.hadoop.conf.Configuration
import org.apache.hadoop.hbase.zookeeper.ZooKeeperWrapper
# Name of this script
NAME = "copy_tables_desc"
# Print usage for this script
def usage
puts 'Usage: %s.rb master_zookeeper.quorum.peers:clientport:znode_parent slave_zookeeper.quorum.peers:clientport:znode_parent' % NAME
exit!
end
if ARGV.size != 2
usage
end
LOG = LogFactory.getLog(NAME)
parts1 = ARGV[0].split(":")
LOG.info("Master cluster located at " + parts1[0] + " port " + parts1[1] + " in folder " + parts1[2])
parts2 = ARGV[1].split(":")
LOG.info("Slave cluster located at " + parts2[0] + " port " + parts2[1] + " in folder " + parts2[2])
print "Are those info correct? [Y/n] "
answer = $stdin.gets.chomp
if answer.length != 0 || answer == "n" || answer == "no"
exit!
end
c1 = HBaseConfiguration.create()
c1.set(HConstants.ZOOKEEPER_QUORUM, parts1[0])
c1.set("hbase.zookeeper.property.clientPort", parts1[1])
c1.set(HConstants.ZOOKEEPER_ZNODE_PARENT, parts1[2])
admin1 = HBaseAdmin.new(c1)
c2 = HBaseConfiguration.create()
c2.set(HConstants.ZOOKEEPER_QUORUM, parts2[0])
c2.set("hbase.zookeeper.property.clientPort", parts2[1])
c2.set(HConstants.ZOOKEEPER_ZNODE_PARENT, parts2[2])
admin2 = HBaseAdmin.new(c2)
for t in admin1.listTables()
admin2.createTable(t)
end