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.apache.hadoop.hbase.util.BloomFilterUtil;
026import org.slf4j.Logger;
027import org.slf4j.LoggerFactory;
028
029/**
030 * Action that tries to adjust the bloom filter setting on all the columns of a
031 * table
032 */
033public class ChangeBloomFilterAction extends Action {
034  private final long sleepTime;
035  private final TableName tableName;
036  private static final Logger LOG = LoggerFactory.getLogger(ChangeBloomFilterAction.class);
037
038  public ChangeBloomFilterAction(TableName tableName) {
039    this(-1, tableName);
040  }
041
042  public ChangeBloomFilterAction(int sleepTime, TableName tableName) {
043    this.sleepTime = sleepTime;
044    this.tableName = tableName;
045  }
046
047  @Override
048  public void perform() throws Exception {
049    final Random random = new Random();
050    final BloomType[] bloomArray = BloomType.values();
051    final int bloomArraySize = bloomArray.length;
052
053    LOG.info("Performing action: Change bloom filter on all columns of table " + tableName);
054
055    modifyAllTableColumns(tableName, (columnName, columnBuilder) -> {
056      BloomType bloomType = bloomArray[random.nextInt(bloomArraySize)];
057      LOG.debug("Performing action: About to set bloom filter type to "
058          + bloomType + " on column " + columnName + " of table " + tableName);
059      columnBuilder.setBloomFilterType(bloomType);
060      if (bloomType == BloomType.ROWPREFIX_FIXED_LENGTH) {
061        columnBuilder.setConfiguration(BloomFilterUtil.PREFIX_LENGTH_KEY, "10");
062      }
063    });
064
065    LOG.debug("Performing action: Just set bloom filter types on table " + tableName);
066  }
067}