| # 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. |
| # |
| |
| module Shell |
| module Commands |
| class ListRsgroups < Command |
| def help |
| <<-EOF |
| List all RegionServer groups. Optional regular expression parameter can |
| be used to filter the output. |
| |
| Example: |
| |
| hbase> list_rsgroups |
| hbase> list_rsgroups 'abc.*' |
| |
| EOF |
| end |
| |
| def command(regex = '.*') |
| formatter.header(['NAME', 'SERVER / TABLE']) |
| |
| regex = /#{regex}/ unless regex.is_a?(Regexp) |
| list = rsgroup_admin.list_rs_groups |
| groups = 0 |
| |
| list.each do |group| |
| next unless group.getName.match(regex) |
| |
| groups += 1 |
| group_name_printed = false |
| |
| group.getServers.each do |server| |
| if group_name_printed |
| group_name = '' |
| else |
| group_name = group.getName |
| group_name_printed = true |
| end |
| |
| formatter.row([group_name, 'server ' + server.toString]) |
| end |
| tables = rsgroup_admin.list_tables_in_rs_group(group.getName) |
| tables.each do |table| |
| if group_name_printed |
| group_name = '' |
| else |
| group_name = group.getName |
| group_name_printed = true |
| end |
| |
| formatter.row([group_name, 'table ' + table.getNameAsString]) |
| end |
| |
| formatter.row([group.getName, '']) unless group_name_printed |
| end |
| |
| formatter.footer(groups) |
| end |
| end |
| end |
| end |