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.factories;
020
021import org.apache.hadoop.hbase.chaos.actions.Action;
022import org.apache.hadoop.hbase.chaos.actions.DumpClusterStatusAction;
023import org.apache.hadoop.hbase.chaos.actions.ForceBalancerAction;
024import org.apache.hadoop.hbase.chaos.actions.RestartActiveMasterAction;
025import org.apache.hadoop.hbase.chaos.actions.RestartRandomDataNodeAction;
026import org.apache.hadoop.hbase.chaos.actions.RestartRandomRsExceptMetaAction;
027import org.apache.hadoop.hbase.chaos.actions.RestartRandomZKNodeAction;
028import org.apache.hadoop.hbase.chaos.actions.RollingBatchRestartRsExceptMetaAction;
029import org.apache.hadoop.hbase.chaos.monkies.ChaosMonkey;
030import org.apache.hadoop.hbase.chaos.monkies.PolicyBasedChaosMonkey;
031import org.apache.hadoop.hbase.chaos.policies.CompositeSequentialPolicy;
032import org.apache.hadoop.hbase.chaos.policies.DoActionsOncePolicy;
033import org.apache.hadoop.hbase.chaos.policies.PeriodicRandomActionPolicy;
034
035/**
036 * Creates ChaosMonkeys for doing server restart actions, but not
037 * flush / compact / snapshot kind of actions.
038 */
039public class ServerAndDependenciesKillingMonkeyFactory extends MonkeyFactory {
040
041  @Override
042  public ChaosMonkey build() {
043
044    // Destructive actions to mess things around. Cannot run batch restart.
045    Action[] actions1 = new Action[]{
046      new RestartRandomRsExceptMetaAction(60000),
047      new RestartActiveMasterAction(5000),
048      new RollingBatchRestartRsExceptMetaAction(5000, 1.0f, 2), // only allow 2 servers to be dead.
049      new ForceBalancerAction(),
050      new RestartRandomDataNodeAction(60000),
051      new RestartRandomZKNodeAction(60000)
052    };
053
054    // Action to log more info for debugging
055    Action[] actions2 = new Action[]{
056      new DumpClusterStatusAction()
057    };
058
059    return new PolicyBasedChaosMonkey(util,
060      new CompositeSequentialPolicy(
061        new DoActionsOncePolicy(60 * 1000, actions1),
062        new PeriodicRandomActionPolicy(60 * 1000, actions1)),
063      new PeriodicRandomActionPolicy(60 * 1000, actions2));
064  }
065}