| # |
| # |
| # 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 MergeRegion < Command |
| def help |
| <<-EOF |
| Merge multiple (2 or more) regions. Passing 'true' as the optional third parameter will force |
| a merge ('force' merges regardless else merge will fail unless passed |
| adjacent regions. 'force' is for expert use only). |
| |
| You can pass the encoded region name or the full region name. The encoded |
| region name is the hash suffix on region names: e.g. if the region name were |
| TestTable,0094429456,1289497600452.527db22f95c8a9e0116f0cc13c680396. then |
| the encoded region name portion is 527db22f95c8a9e0116f0cc13c680396 |
| |
| You can either pass the list of regions as comma separated values or as an |
| array of regions as shown: |
| |
| Examples: |
| |
| hbase> merge_region 'FULL_REGIONNAME', 'FULL_REGIONNAME' |
| hbase> merge_region 'FULL_REGIONNAME', 'FULL_REGIONNAME', 'FULL_REGIONNAME', ... |
| hbase> merge_region 'FULL_REGIONNAME', 'FULL_REGIONNAME', 'FULL_REGIONNAME', ..., true |
| |
| hbase> merge_region ['FULL_REGIONNAME', 'FULL_REGIONNAME'] |
| hbase> merge_region ['FULL_REGIONNAME', 'FULL_REGIONNAME', 'FULL_REGIONNAME', ...] |
| hbase> merge_region ['FULL_REGIONNAME', 'FULL_REGIONNAME', 'FULL_REGIONNAME', ...], true |
| |
| hbase> merge_region 'ENCODED_REGIONNAME', 'ENCODED_REGIONNAME' |
| hbase> merge_region 'ENCODED_REGIONNAME', 'ENCODED_REGIONNAME', 'ENCODED_REGIONNAME', ... |
| hbase> merge_region 'ENCODED_REGIONNAME', 'ENCODED_REGIONNAME', 'ENCODED_REGIONNAME', ..., true |
| |
| hbase> merge_region ['ENCODED_REGIONNAME', 'ENCODED_REGIONNAME'] |
| hbase> merge_region ['ENCODED_REGIONNAME', 'ENCODED_REGIONNAME', 'ENCODED_REGIONNAME', ...] |
| hbase> merge_region ['ENCODED_REGIONNAME', 'ENCODED_REGIONNAME', 'ENCODED_REGIONNAME', ...], true |
| EOF |
| end |
| |
| def command(*args) |
| args = args.flatten.compact |
| args_len = args.length |
| raise(ArgumentError, 'Must pass at least 2 regions to merge') unless args_len > 1 |
| force = false |
| if(args_len > 2) |
| last = args[args_len-1] |
| if [true, false].include? last |
| force = last |
| args = args[0...-1] |
| end |
| end |
| admin.merge_region(args, force) |
| end |
| end |
| end |
| end |