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 org.apache.hadoop.hbase.HBaseTestingUtility;
021import org.apache.hadoop.hbase.TableName;
022import org.apache.hadoop.hbase.client.Admin;
023import org.slf4j.Logger;
024import org.slf4j.LoggerFactory;
025
026/**
027 * Action that tries to flush a table.
028 */
029public class FlushTableAction extends Action {
030  private static final Logger LOG = LoggerFactory.getLogger(FlushTableAction.class);
031  private final long sleepTime;
032  private final TableName tableName;
033
034  public FlushTableAction(TableName tableName) {
035    this(-1, tableName);
036  }
037
038  public FlushTableAction(int sleepTime, TableName tableName) {
039    this.sleepTime = sleepTime;
040    this.tableName = tableName;
041  }
042
043  @Override
044  protected Logger getLogger() {
045    return LOG;
046  }
047
048  @Override
049  public void perform() throws Exception {
050    HBaseTestingUtility util = context.getHBaseIntegrationTestingUtility();
051    Admin admin = util.getAdmin();
052
053    // Don't try the flush if we're stopping
054    if (context.isStopping()) {
055      return;
056    }
057
058    getLogger().info("Performing action: Flush table " + tableName);
059    try {
060      admin.flush(tableName);
061    } catch (Exception ex) {
062      getLogger().warn("Flush failed, might be caused by other chaos: " + ex.getMessage());
063    }
064    if (sleepTime > 0) {
065      Thread.sleep(sleepTime);
066    }
067  }
068}