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.RollingBatchRestartRsExceptMetaAction;
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 RollingBatchRestartRsExceptMetaAction(5000, 1.0f, 2), // only allow 2 servers to be dead.
056      new ForceBalancerAction(),
057      new RestartRandomDataNodeAction(60000),
058      new RestartRandomZKNodeAction(60000),
059      new GracefulRollingRestartRsAction(gracefulRollingRestartTSSLeepTime),
060      new RollingBatchSuspendResumeRsAction(rollingBatchSuspendRSSleepTime,
061          rollingBatchSuspendtRSRatio)
062    };
063
064    // Action to log more info for debugging
065    Action[] actions2 = new Action[]{
066      new DumpClusterStatusAction()
067    };
068
069    return new PolicyBasedChaosMonkey(util,
070      new CompositeSequentialPolicy(
071        new DoActionsOncePolicy(60 * 1000, actions1),
072        new PeriodicRandomActionPolicy(60 * 1000, actions1)),
073      new PeriodicRandomActionPolicy(60 * 1000, actions2));
074  }
075
076  private void loadProperties() {
077    gracefulRollingRestartTSSLeepTime = Long.parseLong(this.properties.getProperty(
078        MonkeyConstants.GRACEFUL_RESTART_RS_SLEEP_TIME,
079        MonkeyConstants.DEFAULT_GRACEFUL_RESTART_RS_SLEEP_TIME + ""));
080    rollingBatchSuspendRSSleepTime = Long.parseLong(this.properties.getProperty(
081        MonkeyConstants.ROLLING_BATCH_SUSPEND_RS_SLEEP_TIME,
082        MonkeyConstants.DEFAULT_ROLLING_BATCH_SUSPEND_RS_SLEEP_TIME+ ""));
083    rollingBatchSuspendtRSRatio = Float.parseFloat(this.properties.getProperty(
084        MonkeyConstants.ROLLING_BATCH_SUSPEND_RS_RATIO,
085        MonkeyConstants.DEFAULT_ROLLING_BATCH_SUSPEND_RS_RATIO + ""));
086  }
087}