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.Collections;
021import java.util.Map;
022import java.util.concurrent.ThreadLocalRandom;
023import org.apache.hadoop.hbase.HBaseTestingUtil;
024import org.apache.hadoop.hbase.TableName;
025import org.apache.hadoop.hbase.client.Admin;
026import org.apache.hadoop.hbase.client.SnapshotType;
027import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;
028import org.slf4j.Logger;
029import org.slf4j.LoggerFactory;
030
031import org.apache.hbase.thirdparty.com.google.common.collect.ImmutableMap;
032
033/**
034 * Action that tries to take a snapshot of a table.
035 */
036public class SnapshotTableAction extends Action {
037  private static final Logger LOG = LoggerFactory.getLogger(SnapshotTableAction.class);
038  private final TableName tableName;
039  private final long sleepTime;
040  private final Map<String, Object> snapshotProps;
041
042  public SnapshotTableAction(TableName tableName, long ttl) {
043    this(-1, tableName, ttl);
044  }
045
046  public SnapshotTableAction(int sleepTime, TableName tableName, long ttl) {
047    this.tableName = tableName;
048    this.sleepTime = sleepTime;
049    if (ttl > 0) {
050      snapshotProps = ImmutableMap.of("TTL", ttl);
051    } else {
052      snapshotProps = Collections.emptyMap();
053    }
054  }
055
056  @Override
057  protected Logger getLogger() {
058    return LOG;
059  }
060
061  @Override
062  public void perform() throws Exception {
063    HBaseTestingUtil util = context.getHBaseIntegrationTestingUtility();
064    String snapshotName = tableName + "-it-" + EnvironmentEdgeManager.currentTime();
065    Admin admin = util.getAdmin();
066
067    // Don't try the snapshot if we're stopping
068    if (context.isStopping()) {
069      return;
070    }
071
072    getLogger().info("Performing action: Snapshot table {}", tableName);
073    SnapshotType type =
074      ThreadLocalRandom.current().nextBoolean() ? SnapshotType.FLUSH : SnapshotType.SKIPFLUSH;
075    admin.snapshot(snapshotName, tableName, type, snapshotProps);
076    if (sleepTime > 0) {
077      Thread.sleep(sleepTime);
078    }
079  }
080}