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.actions;
020
021import java.util.Random;
022
023import org.apache.hadoop.hbase.TableName;
024import org.apache.hadoop.hbase.regionserver.BloomType;
025import org.slf4j.Logger;
026import org.slf4j.LoggerFactory;
027
028/**
029 * Action that tries to adjust the bloom filter setting on all the columns of a
030 * table
031 */
032public class ChangeBloomFilterAction extends Action {
033  private final long sleepTime;
034  private final TableName tableName;
035  private static final Logger LOG = LoggerFactory.getLogger(ChangeBloomFilterAction.class);
036
037  public ChangeBloomFilterAction(TableName tableName) {
038    this(-1, tableName);
039  }
040
041  public ChangeBloomFilterAction(int sleepTime, TableName tableName) {
042    this.sleepTime = sleepTime;
043    this.tableName = tableName;
044  }
045
046  @Override
047  public void perform() throws Exception {
048    final Random random = new Random();
049    final BloomType[] bloomArray = BloomType.values();
050    final int bloomArraySize = bloomArray.length;
051
052    LOG.info("Performing action: Change bloom filter on all columns of table " + tableName);
053
054    modifyAllTableColumns(tableName, (columnName, columnBuilder) -> {
055      BloomType bloomType = bloomArray[random.nextInt(bloomArraySize)];
056      LOG.debug("Performing action: About to set bloom filter type to "
057          + bloomType + " on column " + columnName + " of table " + tableName);
058      columnBuilder.setBloomFilterType(bloomType);
059    });
060
061    LOG.debug("Performing action: Just set bloom filter types on table " + tableName);
062  }
063}