| # |
| # |
| # 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 ClearDeadservers < Command |
| def help |
| <<~EOF |
| Clear the dead region servers that are never used. Returns an array containing any |
| deadservers that could not be cleared. |
| |
| Examples: |
| Clear all dead region servers: |
| hbase> clear_deadservers |
| Clear the specified dead region servers: |
| hbase> clear_deadservers 'host187.example.com,60020,1289493121758' |
| or |
| hbase> clear_deadservers 'host187.example.com,60020,1289493121758', |
| 'host188.example.com,60020,1289493121758' |
| EOF |
| end |
| |
| # rubocop:disable Metrics/AbcSize |
| def command(*dead_servers) |
| servers = admin.clear_deadservers(dead_servers) |
| if servers.size <= 0 |
| formatter.row(['true']) |
| [] |
| else |
| formatter.row(['Some dead server clear failed']) |
| formatter.row(['SERVERNAME']) |
| server_names = servers.map { |server| server.toString } |
| server_names.each do |server| |
| formatter.row([server]) |
| end |
| formatter.footer(servers.size) |
| server_names |
| end |
| end |
| # rubocop:enable Metrics/AbcSize |
| # rubocop:enable Metrics/MethodLength |
| end |
| end |
| end |