1 /** 2 * Licensed to the Apache Software Foundation (ASF) under one 3 * or more contributor license agreements. See the NOTICE file 4 * distributed with this work for additional information 5 * regarding copyright ownership. The ASF licenses this file 6 * to you under the Apache License, Version 2.0 (the 7 * "License"); you may not use this file except in compliance 8 * with the License. You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, software 13 * distributed under the License is distributed on an "AS IS" BASIS, 14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 * See the License for the specific language governing permissions and 16 * limitations under the License. 17 */ 18 19 package org.apache.hadoop.hbase.chaos.factories; 20 21 import org.apache.hadoop.hbase.chaos.actions.UnbalanceKillAndRebalanceAction; 22 import org.apache.hadoop.hbase.chaos.monkies.ChaosMonkey; 23 import org.apache.hadoop.hbase.chaos.monkies.PolicyBasedChaosMonkey; 24 import org.apache.hadoop.hbase.chaos.policies.PeriodicRandomActionPolicy; 25 import org.apache.hadoop.hbase.chaos.policies.Policy; 26 27 public class UnbalanceMonkeyFactory extends MonkeyFactory { 28 /** How often to introduce the chaos. If too frequent, sequence of kills on minicluster 29 * can cause test to fail when Put runs out of retries. */ 30 private static final long CHAOS_EVERY_MS = 65 * 1000; 31 32 @Override 33 public ChaosMonkey build() { 34 Policy chaosPolicy = new PeriodicRandomActionPolicy( 35 CHAOS_EVERY_MS, 36 new UnbalanceKillAndRebalanceAction() 37 ); 38 39 return new PolicyBasedChaosMonkey(util, chaosPolicy); 40 } 41 }