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1   /**
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   *     http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing, software
13   * distributed under the License is distributed on an "AS IS" BASIS,
14   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15   * See the License for the specific language governing permissions and
16   * limitations under the License.
17   */
18  
19  package org.apache.hadoop.hbase.master;
20  
21  import org.apache.hadoop.hbase.classification.InterfaceAudience;
22  import org.apache.hadoop.hbase.metrics.BaseSourceImpl;
23  import org.apache.hadoop.metrics2.MetricHistogram;
24  import org.apache.hadoop.metrics2.lib.MutableGaugeLong;
25  
26  @InterfaceAudience.Private
27  public class MetricsAssignmentManagerSourceImpl
28      extends BaseSourceImpl
29      implements MetricsAssignmentManagerSource {
30  
31    private MutableGaugeLong ritGauge;
32    private MutableGaugeLong ritCountOverThresholdGauge;
33    private MutableGaugeLong ritOldestAgeGauge;
34    private MetricHistogram assignTimeHisto;
35    private MetricHistogram bulkAssignTimeHisto;
36  
37    public MetricsAssignmentManagerSourceImpl() {
38      this(METRICS_NAME, METRICS_DESCRIPTION, METRICS_CONTEXT, METRICS_JMX_CONTEXT);
39    }
40  
41    public MetricsAssignmentManagerSourceImpl(String metricsName,
42                                              String metricsDescription,
43                                              String metricsContext, String metricsJmxContext) {
44      super(metricsName, metricsDescription, metricsContext, metricsJmxContext);
45    }
46  
47    public void init() {
48      ritGauge = metricsRegistry.newGauge(RIT_COUNT_NAME, "", 0l);
49      ritCountOverThresholdGauge = metricsRegistry.newGauge(RIT_COUNT_OVER_THRESHOLD_NAME, "", 0l);
50      ritOldestAgeGauge = metricsRegistry.newGauge(RIT_OLDEST_AGE_NAME, "", 0l);
51      assignTimeHisto = metricsRegistry.newTimeHistogram(ASSIGN_TIME_NAME);
52      bulkAssignTimeHisto = metricsRegistry.newTimeHistogram(BULK_ASSIGN_TIME_NAME);
53    }
54  
55    @Override
56    public void updateAssignmentTime(long time) {
57      assignTimeHisto.add(time);
58    }
59  
60    @Override
61    public void updateBulkAssignTime(long time) {
62      bulkAssignTimeHisto.add(time);
63    }
64  
65    public void setRIT(int ritCount) {
66      ritGauge.set(ritCount);
67    }
68  
69    public void setRITCountOverThreshold(int ritCount) {
70      ritCountOverThresholdGauge.set(ritCount);
71    }
72  
73    public void setRITOldestAge(long ritCount) {
74      ritOldestAgeGauge.set(ritCount);
75    }
76  }