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.GracefulRollingRestartRsAction;
025import org.apache.hadoop.hbase.chaos.actions.RestartActiveMasterAction;
026import org.apache.hadoop.hbase.chaos.actions.RestartRandomDataNodeAction;
027import org.apache.hadoop.hbase.chaos.actions.RestartRandomRsExceptMetaAction;
028import org.apache.hadoop.hbase.chaos.actions.RestartRandomZKNodeAction;
029import org.apache.hadoop.hbase.chaos.actions.RollingBatchRestartRsAction;
030import org.apache.hadoop.hbase.chaos.actions.RollingBatchSuspendResumeRsAction;
031import org.apache.hadoop.hbase.chaos.monkies.ChaosMonkey;
032import org.apache.hadoop.hbase.chaos.monkies.PolicyBasedChaosMonkey;
033import org.apache.hadoop.hbase.chaos.policies.CompositeSequentialPolicy;
034import org.apache.hadoop.hbase.chaos.policies.DoActionsOncePolicy;
035import org.apache.hadoop.hbase.chaos.policies.PeriodicRandomActionPolicy;
036
037/**
038 * Creates ChaosMonkeys for doing server restart actions, but not
039 * flush / compact / snapshot kind of actions.
040 */
041public class ServerAndDependenciesKillingMonkeyFactory extends MonkeyFactory {
042
043  private long gracefulRollingRestartTSSLeepTime;
044  private long rollingBatchSuspendRSSleepTime;
045  private float rollingBatchSuspendtRSRatio;
046
047  @Override
048  public ChaosMonkey build() {
049    loadProperties();
050
051    // Destructive actions to mess things around. Cannot run batch restart.
052    Action[] actions1 = new Action[]{
053      new RestartRandomRsExceptMetaAction(60000),
054      new RestartActiveMasterAction(5000),
055      new RollingBatchRestartRsAction(5000, 1.0f, 2,
056        true), // only allow 2 servers to be dead.
057      new ForceBalancerAction(),
058      new RestartRandomDataNodeAction(60000),
059      new RestartRandomZKNodeAction(60000),
060      new GracefulRollingRestartRsAction(gracefulRollingRestartTSSLeepTime),
061      new RollingBatchSuspendResumeRsAction(rollingBatchSuspendRSSleepTime,
062          rollingBatchSuspendtRSRatio)
063    };
064
065    // Action to log more info for debugging
066    Action[] actions2 = new Action[]{
067      new DumpClusterStatusAction()
068    };
069
070    return new PolicyBasedChaosMonkey(properties, util,
071      new CompositeSequentialPolicy(
072        new DoActionsOncePolicy(60 * 1000, actions1),
073        new PeriodicRandomActionPolicy(60 * 1000, actions1)),
074      new PeriodicRandomActionPolicy(60 * 1000, actions2));
075  }
076
077  private void loadProperties() {
078    gracefulRollingRestartTSSLeepTime = Long.parseLong(this.properties.getProperty(
079        MonkeyConstants.GRACEFUL_RESTART_RS_SLEEP_TIME,
080        MonkeyConstants.DEFAULT_GRACEFUL_RESTART_RS_SLEEP_TIME + ""));
081    rollingBatchSuspendRSSleepTime = Long.parseLong(this.properties.getProperty(
082        MonkeyConstants.ROLLING_BATCH_SUSPEND_RS_SLEEP_TIME,
083        MonkeyConstants.DEFAULT_ROLLING_BATCH_SUSPEND_RS_SLEEP_TIME+ ""));
084    rollingBatchSuspendtRSRatio = Float.parseFloat(this.properties.getProperty(
085        MonkeyConstants.ROLLING_BATCH_SUSPEND_RS_RATIO,
086        MonkeyConstants.DEFAULT_ROLLING_BATCH_SUSPEND_RS_RATIO + ""));
087  }
088}