001/** 002 * Licensed to the Apache Software Foundation (ASF) under one 003 * or more contributor license agreements. See the NOTICE file 004 * distributed with this work for additional information 005 * regarding copyright ownership. The ASF licenses this file 006 * to you under the Apache License, Version 2.0 (the 007 * "License"); you may not use this file except in compliance 008 * with the License. You may obtain a copy of the License at 009 * 010 * http://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, software 013 * distributed under the License is distributed on an "AS IS" BASIS, 014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 015 * See the License for the specific language governing permissions and 016 * limitations under the License. 017 */ 018 019package org.apache.hadoop.hbase.chaos.actions; 020 021import java.util.List; 022 023import org.apache.commons.lang3.RandomUtils; 024import org.apache.hadoop.hbase.HBaseTestingUtility; 025import org.apache.hadoop.hbase.HRegionInfo; 026import org.apache.hadoop.hbase.TableName; 027import org.apache.hadoop.hbase.chaos.monkies.PolicyBasedChaosMonkey; 028import org.apache.hadoop.hbase.client.Admin; 029import org.slf4j.Logger; 030import org.slf4j.LoggerFactory; 031 032/** 033 * Region that queues a compaction of a random region from the table. 034 */ 035public class CompactRandomRegionOfTableAction extends Action { 036 private final int majorRatio; 037 private final long sleepTime; 038 private final TableName tableName; 039 private static final Logger LOG = 040 LoggerFactory.getLogger(CompactRandomRegionOfTableAction.class); 041 042 public CompactRandomRegionOfTableAction( 043 TableName tableName, float majorRatio) { 044 this(-1, tableName, majorRatio); 045 } 046 047 public CompactRandomRegionOfTableAction( 048 int sleepTime, TableName tableName, float majorRatio) { 049 this.majorRatio = (int) (100 * majorRatio); 050 this.sleepTime = sleepTime; 051 this.tableName = tableName; 052 } 053 054 @Override 055 public void perform() throws Exception { 056 HBaseTestingUtility util = context.getHBaseIntegrationTestingUtility(); 057 Admin admin = util.getAdmin(); 058 boolean major = RandomUtils.nextInt(0, 100) < majorRatio; 059 060 LOG.info("Performing action: Compact random region of table " 061 + tableName + ", major=" + major); 062 List<HRegionInfo> regions = admin.getTableRegions(tableName); 063 if (regions == null || regions.isEmpty()) { 064 LOG.info("Table " + tableName + " doesn't have regions to compact"); 065 return; 066 } 067 068 HRegionInfo region = PolicyBasedChaosMonkey.selectRandomItem( 069 regions.toArray(new HRegionInfo[regions.size()])); 070 071 try { 072 if (major) { 073 LOG.debug("Major compacting region " + region.getRegionNameAsString()); 074 admin.majorCompactRegion(region.getRegionName()); 075 } else { 076 LOG.debug("Compacting region " + region.getRegionNameAsString()); 077 admin.compactRegion(region.getRegionName()); 078 } 079 } catch (Exception ex) { 080 LOG.warn("Compaction failed, might be caused by other chaos: " + ex.getMessage()); 081 } 082 if (sleepTime > 0) { 083 Thread.sleep(sleepTime); 084 } 085 } 086}