| # |
| # |
| # 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.client.HBaseAdmin |
| import org.apache.hadoop.hbase.HTableDescriptor |
| import org.apache.hadoop.conf.Configuration |
| |
| # 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 [table1,table2,table3,...]' % NAME |
| exit! |
| end |
| |
| def copy (src, dst, table) |
| # verify if table exists in source cluster |
| begin |
| t = src.getTableDescriptor(table.to_java_bytes) |
| rescue org.apache.hadoop.hbase.TableNotFoundException |
| puts "Source table \"%s\" doesn't exist, skipping." % table |
| return |
| end |
| |
| # verify if table *doesn't* exists in the target cluster |
| begin |
| dst.createTable(t) |
| rescue org.apache.hadoop.hbase.TableExistsException |
| puts "Destination table \"%s\" exists in remote cluster, skipping." % table |
| return |
| end |
| |
| puts "Schema for table \"%s\" was succesfully copied to remote cluster." % table |
| end |
| |
| |
| if ARGV.size < 2 || ARGV.size > 3 |
| usage |
| end |
| |
| LOG = LogFactory.getLog(NAME) |
| |
| parts1 = ARGV[0].split(":") |
| |
| parts2 = ARGV[1].split(":") |
| |
| parts3 = ARGV[2].split(",") unless ARGV[2].nil? |
| |
| 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) |
| |
| if parts3.nil? |
| admin1.listTableNames().each do |t| |
| copy(admin1, admin2, t.nameAsString()) |
| end |
| else |
| parts3.each do |t| |
| copy(admin1, admin2, t) |
| end |
| end |