1 /*
2 *
3 * Licensed to the Apache Software Foundation (ASF) under one
4 * or more contributor license agreements. See the NOTICE file
5 * distributed with this work for additional information
6 * regarding copyright ownership. The ASF licenses this file
7 * to you under the Apache License, Version 2.0 (the
8 * "License"); you may not use this file except in compliance
9 * with the License. You may obtain a copy of the License at
10 *
11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
18 */
19
20 package org.apache.hadoop.hbase.namequeues;
21
22 import org.apache.hadoop.hbase.ScheduledChore;
23 import org.apache.hadoop.hbase.Stoppable;
24 import org.apache.hadoop.hbase.classification.InterfaceAudience;
25 import org.slf4j.Logger;
26 import org.slf4j.LoggerFactory;
27
28 /**
29 * Chore to insert multiple accumulated slow/large logs to hbase:slowlog system table
30 */
31 @InterfaceAudience.Private
32 public class SlowLogTableOpsChore extends ScheduledChore {
33
34 private static final Logger LOG = LoggerFactory.getLogger(SlowLogTableOpsChore.class);
35
36 private final NamedQueueRecorder namedQueueRecorder;
37
38 /**
39 * Chore Constructor
40 *
41 * @param stopper The stopper - When {@link Stoppable#isStopped()} is true, this chore will
42 * cancel and cleanup
43 * @param period Period in millis with which this Chore repeats execution when scheduled
44 * @param namedQueueRecorder {@link NamedQueueRecorder} instance
45 */
46 public SlowLogTableOpsChore(final Stoppable stopper, final int period,
47 final NamedQueueRecorder namedQueueRecorder) {
48 super("SlowLogTableOpsChore", stopper, period);
49 this.namedQueueRecorder = namedQueueRecorder;
50 }
51
52 @Override
53 protected void chore() {
54 if (LOG.isTraceEnabled()) {
55 LOG.trace("SlowLog Table Ops Chore is starting up.");
56 }
57 namedQueueRecorder.persistAll(NamedQueuePayload.NamedQueueEvent.SLOW_LOG);
58 if (LOG.isTraceEnabled()) {
59 LOG.trace("SlowLog Table Ops Chore is closing.");
60 }
61 }
62
63 }