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 */
018package org.apache.hadoop.hbase.chaos.actions;
019
020import java.util.concurrent.ThreadLocalRandom;
021import org.apache.hadoop.hbase.TableName;
022import org.apache.hadoop.hbase.regionserver.BloomType;
023import org.apache.hadoop.hbase.util.BloomFilterUtil;
024import org.slf4j.Logger;
025import org.slf4j.LoggerFactory;
026
027/**
028 * Action that tries to adjust the bloom filter setting on all the columns of a table
029 */
030public class ChangeBloomFilterAction extends Action {
031  private static final Logger LOG = LoggerFactory.getLogger(ChangeBloomFilterAction.class);
032  private final TableName tableName;
033
034  public ChangeBloomFilterAction(TableName tableName) {
035    this.tableName = tableName;
036  }
037
038  @Override
039  protected Logger getLogger() {
040    return LOG;
041  }
042
043  @Override
044  public void perform() throws Exception {
045    final BloomType[] bloomArray = BloomType.values();
046    final int bloomArraySize = bloomArray.length;
047
048    getLogger().info("Performing action: Change bloom filter on all columns of table " + tableName);
049
050    modifyAllTableColumns(tableName, (columnName, columnBuilder) -> {
051      BloomType bloomType = bloomArray[ThreadLocalRandom.current().nextInt(bloomArraySize)];
052      getLogger().debug("Performing action: About to set bloom filter type to " + bloomType
053        + " on column " + columnName + " of table " + tableName);
054      columnBuilder.setBloomFilterType(bloomType);
055      if (bloomType == BloomType.ROWPREFIX_FIXED_LENGTH) {
056        columnBuilder.setConfiguration(BloomFilterUtil.PREFIX_LENGTH_KEY, "10");
057      }
058    });
059
060    getLogger().debug("Performing action: Just set bloom filter types on table " + tableName);
061  }
062}