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* 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.
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package org.apache.hadoop.hbase.chaos.factories;
import org.apache.hadoop.hbase.chaos.actions.Action;
import org.apache.hadoop.hbase.chaos.actions.AddColumnAction;
import org.apache.hadoop.hbase.chaos.actions.BatchRestartRsAction;
import org.apache.hadoop.hbase.chaos.actions.ChangeEncodingAction;
import org.apache.hadoop.hbase.chaos.actions.ChangeVersionsAction;
import org.apache.hadoop.hbase.chaos.actions.CompactRandomRegionOfTableAction;
import org.apache.hadoop.hbase.chaos.actions.CompactTableAction;
import org.apache.hadoop.hbase.chaos.actions.FlushRandomRegionOfTableAction;
import org.apache.hadoop.hbase.chaos.actions.FlushTableAction;
import org.apache.hadoop.hbase.chaos.actions.MergeRandomAdjacentRegionsOfTableAction;
import org.apache.hadoop.hbase.chaos.actions.MoveRandomRegionOfTableAction;
import org.apache.hadoop.hbase.chaos.actions.MoveRegionsOfTableAction;
import org.apache.hadoop.hbase.chaos.actions.RemoveColumnAction;
import org.apache.hadoop.hbase.chaos.actions.RestartActiveMasterAction;
import org.apache.hadoop.hbase.chaos.actions.RestartRandomRsAction;
import org.apache.hadoop.hbase.chaos.actions.RestartRsHoldingMetaAction;
import org.apache.hadoop.hbase.chaos.actions.RollingBatchRestartRsAction;
import org.apache.hadoop.hbase.chaos.actions.SnapshotTableAction;
import org.apache.hadoop.hbase.chaos.actions.SplitRandomRegionOfTableAction;
import org.apache.hadoop.hbase.chaos.monkies.ChaosMonkey;
import org.apache.hadoop.hbase.chaos.monkies.PolicyBasedChaosMonkey;
import org.apache.hadoop.hbase.chaos.policies.CompositeSequentialPolicy;
import org.apache.hadoop.hbase.chaos.policies.DoActionsOncePolicy;
import org.apache.hadoop.hbase.chaos.policies.PeriodicRandomActionPolicy;
public class SlowDeterministicMonkeyFactory extends MonkeyFactory {
@Override
public ChaosMonkey build() {
// Actions such as compact/flush a table/region,
// move one region around. They are not so destructive,
// can be executed more frequently.
Action[] actions1 = new Action[] {
new CompactTableAction(tableName, 0.5f),
new CompactRandomRegionOfTableAction(tableName, 0.6f),
new FlushTableAction(tableName),
new FlushRandomRegionOfTableAction(tableName),
new MoveRandomRegionOfTableAction(tableName)
};
// Actions such as split/merge/snapshot.
// They should not cause data loss, or unreliability
// such as region stuck in transition.
Action[] actions2 = new Action[] {
new SplitRandomRegionOfTableAction(tableName),
new MergeRandomAdjacentRegionsOfTableAction(tableName),
new SnapshotTableAction(tableName),
new AddColumnAction(tableName),
new RemoveColumnAction(tableName, columnFamilies),
new ChangeEncodingAction(tableName),
new ChangeVersionsAction(tableName)
};
// Destructive actions to mess things around.
Action[] actions3 = new Action[] {
new MoveRegionsOfTableAction(tableName),
new RestartRandomRsAction(60000),
new BatchRestartRsAction(5000, 0.5f),
new RestartActiveMasterAction(5000),
new RollingBatchRestartRsAction(5000, 1.0f),
new RestartRsHoldingMetaAction(35000)
};
return new PolicyBasedChaosMonkey(util,
new PeriodicRandomActionPolicy(60 * 1000, actions1),
new PeriodicRandomActionPolicy(90 * 1000, actions2),
new CompositeSequentialPolicy(
new DoActionsOncePolicy(150 * 1000, actions3),
new PeriodicRandomActionPolicy(150 * 1000, actions3)));
}
}