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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.regionserver;
20  
21  import org.apache.hadoop.hbase.CompatibilityFactory;
22  import org.apache.hadoop.hbase.testclassification.SmallTests;
23  import org.apache.hadoop.hbase.test.MetricsAssertHelper;
24  import org.junit.Test;
25  import org.junit.experimental.categories.Category;
26  
27  @Category(SmallTests.class)
28  public class TestMetricsRegion {
29  
30  
31    public MetricsAssertHelper HELPER = CompatibilityFactory.getInstance(MetricsAssertHelper.class);
32  
33    @Test
34    public void testRegionWrapperMetrics() {
35      MetricsRegion mr = new MetricsRegion(new MetricsRegionWrapperStub());
36      MetricsRegionAggregateSource agg = mr.getSource().getAggregateSource();
37  
38      HELPER.assertGauge(
39        "namespace_TestNS_table_MetricsRegionWrapperStub_region_DEADBEEF001_metric_storeCount", 
40        101, agg);
41      HELPER.assertGauge(
42        "namespace_TestNS_table_MetricsRegionWrapperStub_region_DEADBEEF001_metric_storeFileCount",
43        102, agg);
44      HELPER.assertGauge(
45        "namespace_TestNS_table_MetricsRegionWrapperStub_region_DEADBEEF001_metric_memstoreSize",
46        103, agg);
47      HELPER.assertCounter(
48        "namespace_TestNS_table_MetricsRegionWrapperStub_region_DEADBEEF001_metric_replicaid", 
49        0, agg);
50      mr.close();
51  
52      // test region with replica id > 0
53      mr = new MetricsRegion(new MetricsRegionWrapperStub(1));
54      agg = mr.getSource().getAggregateSource();
55      HELPER.assertGauge(
56        "namespace_TestNS_table_MetricsRegionWrapperStub_region_DEADBEEF001_metric_storeCount", 
57        101, agg);
58      HELPER.assertGauge(
59        "namespace_TestNS_table_MetricsRegionWrapperStub_region_DEADBEEF001_metric_storeFileCount",
60        102, agg);
61      HELPER.assertGauge(
62        "namespace_TestNS_table_MetricsRegionWrapperStub_region_DEADBEEF001_metric_memstoreSize",
63        103, agg);
64      HELPER.assertCounter(
65        "namespace_TestNS_table_MetricsRegionWrapperStub_region_DEADBEEF001_metric_replicaid", 
66        1, agg);
67      mr.close();
68    }
69  }