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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  package org.apache.hadoop.hbase.regionserver;
19  
20  import org.apache.hadoop.conf.Configuration;
21  import org.apache.hadoop.hbase.CompatibilityFactory;
22  import org.apache.hadoop.hbase.test.MetricsAssertHelper;
23  import org.apache.hadoop.hbase.testclassification.SmallTests;
24  import org.apache.hadoop.hbase.util.JvmPauseMonitor;
25  import org.junit.Before;
26  import org.junit.BeforeClass;
27  import org.junit.Test;
28  import org.junit.experimental.categories.Category;
29  
30  import static org.junit.Assert.assertNotNull;
31  
32  /**
33   * Unit test version of rs metrics tests.
34   */
35  @Category(SmallTests.class)
36  public class TestMetricsRegionServer {
37    public static MetricsAssertHelper HELPER =
38        CompatibilityFactory.getInstance(MetricsAssertHelper.class);
39  
40    private MetricsRegionServerWrapperStub wrapper;
41    private MetricsRegionServer rsm;
42    private MetricsRegionServerSource serverSource;
43  
44    @BeforeClass
45    public static void classSetUp() {
46      HELPER.init();
47    }
48  
49    @Before
50    public void setUp() {
51      wrapper = new MetricsRegionServerWrapperStub();
52      rsm = new MetricsRegionServer(wrapper);
53      serverSource = rsm.getMetricsSource();
54    }
55  
56    @Test
57    public void testWrapperSource() {
58      HELPER.assertTag("serverName", "test", serverSource);
59      HELPER.assertTag("clusterId", "tClusterId", serverSource);
60      HELPER.assertTag("zookeeperQuorum", "zk", serverSource);
61      HELPER.assertGauge("regionServerStartTime", 100, serverSource);
62      HELPER.assertGauge("regionCount", 101, serverSource);
63      HELPER.assertGauge("storeCount", 2, serverSource);
64      HELPER.assertGauge("maxStoreFileAge", 2, serverSource);
65      HELPER.assertGauge("minStoreFileAge", 2, serverSource);
66      HELPER.assertGauge("avgStoreFileAge", 2, serverSource);
67      HELPER.assertGauge("numReferenceFiles", 2, serverSource);
68      HELPER.assertGauge("hlogFileCount", 10, serverSource);
69      HELPER.assertGauge("hlogFileSize", 1024000, serverSource);
70      HELPER.assertGauge("storeFileCount", 300, serverSource);
71      HELPER.assertGauge("memstoreSize", 1025, serverSource);
72      HELPER.assertGauge("storeFileSize", 1900, serverSource);
73      HELPER.assertCounter("totalRequestCount", 899, serverSource);
74      HELPER.assertCounter("readRequestCount", 997, serverSource);
75      HELPER.assertCounter("writeRequestCount", 707, serverSource);
76      HELPER.assertCounter("checkMutateFailedCount", 401, serverSource);
77      HELPER.assertCounter("checkMutatePassedCount", 405, serverSource);
78      HELPER.assertGauge("storeFileIndexSize", 406, serverSource);
79      HELPER.assertGauge("staticIndexSize", 407, serverSource);
80      HELPER.assertGauge("staticBloomSize", 408, serverSource);
81      HELPER.assertGauge("mutationsWithoutWALCount", 409, serverSource);
82      HELPER.assertGauge("mutationsWithoutWALSize", 410, serverSource);
83      HELPER.assertGauge("percentFilesLocal", 99, serverSource);
84      HELPER.assertGauge("compactionQueueLength", 411, serverSource);
85      HELPER.assertGauge("flushQueueLength", 412, serverSource);
86      HELPER.assertGauge("blockCacheFreeSize", 413, serverSource);
87      HELPER.assertGauge("blockCacheCount", 414, serverSource);
88      HELPER.assertGauge("blockCacheSize", 415, serverSource);
89      HELPER.assertCounter("blockCacheHitCount", 416, serverSource);
90      HELPER.assertCounter("blockCacheMissCount", 417, serverSource);
91      HELPER.assertCounter("blockCacheEvictionCount", 418, serverSource);
92      HELPER.assertGauge("blockCountHitPercent", 98, serverSource);
93      HELPER.assertGauge("blockCacheExpressHitPercent", 97, serverSource);
94      HELPER.assertCounter("blockCacheFailedInsertionCount", 36, serverSource);
95      HELPER.assertCounter("updatesBlockedTime", 419, serverSource);
96    }
97  
98    @Test
99    public void testConstuctor() {
100     assertNotNull("There should be a hadoop1/hadoop2 metrics source", rsm.getMetricsSource() );
101     assertNotNull("The RegionServerMetricsWrapper should be accessable", rsm.getRegionServerWrapper());
102   }
103 
104   @Test
105   public void testSlowCount() {
106     for (int i=0; i < 12; i ++) {
107       rsm.updateAppend(12);
108       rsm.updateAppend(1002);
109     }
110     for (int i=0; i < 13; i ++) {
111       rsm.updateDelete(13);
112       rsm.updateDelete(1003);
113     }
114     for (int i=0; i < 14; i ++) {
115       rsm.updateGet(14);
116       rsm.updateGet(1004);
117     }
118     for (int i=0; i < 15; i ++) {
119       rsm.updateIncrement(15);
120       rsm.updateIncrement(1005);
121     }
122     for (int i=0; i < 16; i ++) {
123       rsm.updatePut(16);
124       rsm.updatePut(1006);
125     }
126 
127     HELPER.assertCounter("appendNumOps", 24, serverSource);
128     HELPER.assertCounter("deleteNumOps", 26, serverSource);
129     HELPER.assertCounter("getNumOps", 28, serverSource);
130     HELPER.assertCounter("incrementNumOps", 30, serverSource);
131     HELPER.assertCounter("mutateNumOps", 32, serverSource);
132 
133 
134     HELPER.assertCounter("slowAppendCount", 12, serverSource);
135     HELPER.assertCounter("slowDeleteCount", 13, serverSource);
136     HELPER.assertCounter("slowGetCount", 14, serverSource);
137     HELPER.assertCounter("slowIncrementCount", 15, serverSource);
138     HELPER.assertCounter("slowPutCount", 16, serverSource);
139   }
140 
141   @Test
142   public void testPauseMonitor() {
143     Configuration conf = new Configuration();
144     conf.setLong(JvmPauseMonitor.INFO_THRESHOLD_KEY, 1000L);
145     conf.setLong(JvmPauseMonitor.WARN_THRESHOLD_KEY, 10000L);
146     JvmPauseMonitor monitor = new JvmPauseMonitor(conf, serverSource);
147     monitor.updateMetrics(1500, false);
148     HELPER.assertCounter("pauseInfoThresholdExceeded", 1, serverSource);
149     HELPER.assertCounter("pauseWarnThresholdExceeded", 0, serverSource);
150     HELPER.assertCounter("pauseTimeWithoutGc_num_ops", 1, serverSource);
151     HELPER.assertCounter("pauseTimeWithGc_num_ops", 0, serverSource);
152     monitor.updateMetrics(15000, true);
153     HELPER.assertCounter("pauseInfoThresholdExceeded", 1, serverSource);
154     HELPER.assertCounter("pauseWarnThresholdExceeded", 1, serverSource);
155     HELPER.assertCounter("pauseTimeWithoutGc_num_ops", 1, serverSource);
156     HELPER.assertCounter("pauseTimeWithGc_num_ops", 1, serverSource);
157   }
158 }
159