/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.hadoop.hbase.chaos.factories;
import org.apache.hadoop.hbase.chaos.actions.UnbalanceKillAndRebalanceAction;
import org.apache.hadoop.hbase.chaos.monkies.ChaosMonkey;
import org.apache.hadoop.hbase.chaos.monkies.PolicyBasedChaosMonkey;
import org.apache.hadoop.hbase.chaos.policies.PeriodicRandomActionPolicy;
import org.apache.hadoop.hbase.chaos.policies.Policy;
public class UnbalanceMonkeyFactory extends MonkeyFactory {
/** How often to introduce the chaos. If too frequent, sequence of kills on minicluster
* can cause test to fail when Put runs out of retries. */
private long chaosEveryMilliSec;
private long waitForUnbalanceMilliSec;
private long waitForKillMilliSec;
private long waitAfterBalanceMilliSec;
@Override
public ChaosMonkey build() {
loadProperties();
Policy chaosPolicy = new PeriodicRandomActionPolicy(chaosEveryMilliSec,
new UnbalanceKillAndRebalanceAction(waitForUnbalanceMilliSec, waitForKillMilliSec,
waitAfterBalanceMilliSec));
return new PolicyBasedChaosMonkey(util, chaosPolicy);
}
private void loadProperties() {
chaosEveryMilliSec = Long.parseLong(this.properties.getProperty(
MonkeyConstants.UNBALANCE_CHAOS_EVERY_MS,
MonkeyConstants.DEFAULT_UNBALANCE_CHAOS_EVERY_MS + ""));
waitForUnbalanceMilliSec = Long.parseLong(this.properties.getProperty(
MonkeyConstants.UNBALANCE_WAIT_FOR_UNBALANCE_MS,
MonkeyConstants.DEFAULT_UNBALANCE_WAIT_FOR_UNBALANCE_MS + ""));
waitForKillMilliSec = Long.parseLong(this.properties.getProperty(
MonkeyConstants.UNBALANCE_WAIT_FOR_KILLS_MS,
MonkeyConstants.DEFAULT_UNBALANCE_WAIT_FOR_KILLS_MS + ""));
waitAfterBalanceMilliSec = Long.parseLong(this.properties.getProperty(
MonkeyConstants.UNBALANCE_WAIT_AFTER_BALANCE_MS,
MonkeyConstants.DEFAULT_UNBALANCE_WAIT_AFTER_BALANCE_MS + ""));
}
}