/**
* 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.actions;
import java.util.Random;
import org.apache.hadoop.hbase.HBaseTestingUtility;
import org.apache.hadoop.hbase.HColumnDescriptor;
import org.apache.hadoop.hbase.HTableDescriptor;
import org.apache.hadoop.hbase.TableName;
import org.apache.hadoop.hbase.client.Admin;
import org.apache.hadoop.hbase.regionserver.BloomType;
/**
* Action that tries to adjust the bloom filter setting on all the columns of a
* table
*/
public class ChangeBloomFilterAction extends Action {
private final long sleepTime;
private final TableName tableName;
public ChangeBloomFilterAction(TableName tableName) {
this(-1, tableName);
}
public ChangeBloomFilterAction(int sleepTime, TableName tableName) {
this.sleepTime = sleepTime;
this.tableName = tableName;
}
@Override
public void perform() throws Exception {
Random random = new Random();
HBaseTestingUtility util = context.getHBaseIntegrationTestingUtility();
Admin admin = util.getHBaseAdmin();
LOG.info("Performing action: Change bloom filter on all columns of table "
+ tableName);
HTableDescriptor tableDescriptor = admin.getTableDescriptor(tableName);
HColumnDescriptor[] columnDescriptors = tableDescriptor.getColumnFamilies();
if (columnDescriptors == null || columnDescriptors.length == 0) {
return;
}
final BloomType[] bloomArray = BloomType.values();
final int bloomArraySize = bloomArray.length;
for (HColumnDescriptor descriptor : columnDescriptors) {
int bloomFilterIndex = random.nextInt(bloomArraySize);
LOG.debug("Performing action: About to set bloom filter type to "
+ bloomArray[bloomFilterIndex] + " on column "
+ descriptor.getNameAsString() + " of table " + tableName);
descriptor.setBloomFilterType(bloomArray[bloomFilterIndex]);
LOG.debug("Performing action: Just set bloom filter type to "
+ bloomArray[bloomFilterIndex] + " on column "
+ descriptor.getNameAsString() + " of table " + tableName);
}
admin.modifyTable(tableName, tableDescriptor);
}
}