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.namequeues;
019
020import org.apache.hadoop.hbase.ScheduledChore;
021import org.apache.hadoop.hbase.Stoppable;
022import org.apache.yetus.audience.InterfaceAudience;
023import org.slf4j.Logger;
024import org.slf4j.LoggerFactory;
025
026/**
027 * Chore to insert multiple accumulated slow/large logs to hbase:slowlog system table
028 */
029@InterfaceAudience.Private
030public class SlowLogTableOpsChore extends ScheduledChore {
031
032  private static final Logger LOG = LoggerFactory.getLogger(SlowLogTableOpsChore.class);
033
034  private final NamedQueueRecorder namedQueueRecorder;
035
036  /**
037   * Chore Constructor
038   * @param stopper            The stopper - When {@link Stoppable#isStopped()} is true, this chore
039   *                           will cancel and cleanup
040   * @param period             Period in millis with which this Chore repeats execution when
041   *                           scheduled
042   * @param namedQueueRecorder {@link NamedQueueRecorder} instance
043   */
044  public SlowLogTableOpsChore(final Stoppable stopper, final int period,
045    final NamedQueueRecorder namedQueueRecorder) {
046    super("SlowLogTableOpsChore", stopper, period);
047    this.namedQueueRecorder = namedQueueRecorder;
048  }
049
050  @Override
051  protected void chore() {
052    if (LOG.isTraceEnabled()) {
053      LOG.trace("SlowLog Table Ops Chore is starting up.");
054    }
055    namedQueueRecorder.persistAll(NamedQueuePayload.NamedQueueEvent.SLOW_LOG);
056    if (LOG.isTraceEnabled()) {
057      LOG.trace("SlowLog Table Ops Chore is closing.");
058    }
059  }
060
061}