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18 package org.apache.hadoop.hbase.master;
19
20 import static org.junit.Assert.*;
21
22 import org.apache.commons.logging.Log;
23 import org.apache.commons.logging.LogFactory;
24 import org.apache.hadoop.hbase.HBaseTestingUtility;
25 import org.apache.hadoop.hbase.testclassification.MediumTests;
26 import org.apache.hadoop.hbase.util.Threads;
27 import org.junit.AfterClass;
28 import org.junit.BeforeClass;
29 import org.junit.Test;
30 import org.junit.experimental.categories.Category;
31
32 @Category(MediumTests.class)
33 public class TestMasterMetricsWrapper {
34 private static final Log LOG = LogFactory.getLog(TestMasterMetricsWrapper.class);
35
36 private static final HBaseTestingUtility TEST_UTIL = new HBaseTestingUtility();
37
38 @BeforeClass
39 public static void setup() throws Exception {
40 TEST_UTIL.startMiniCluster(1, 4);
41 }
42
43 @AfterClass
44 public static void teardown() throws Exception {
45 TEST_UTIL.shutdownMiniCluster();
46 }
47
48 @Test (timeout = 30000)
49 public void testInfo() {
50 HMaster master = TEST_UTIL.getHBaseCluster().getMaster();
51 MetricsMasterWrapperImpl info = new MetricsMasterWrapperImpl(master);
52 assertEquals(master.getAverageLoad(), info.getAverageLoad(), 0);
53 assertEquals(master.getClusterId(), info.getClusterId());
54 assertEquals(master.getMasterActiveTime(), info.getActiveTime());
55 assertEquals(master.getMasterStartTime(), info.getStartTime());
56 assertEquals(master.getCoprocessors().length, info.getCoprocessors().length);
57 assertEquals(master.getServerManager().getOnlineServersList().size(), info.getNumRegionServers());
58 assertTrue(info.getNumRegionServers() == 4);
59
60 String zkServers = info.getZookeeperQuorum();
61 assertEquals(zkServers.split(",").length, TEST_UTIL.getZkCluster().getZooKeeperServerNum());
62
63 final int index = 3;
64 LOG.info("Stopping " + TEST_UTIL.getMiniHBaseCluster().getRegionServer(index));
65 TEST_UTIL.getMiniHBaseCluster().stopRegionServer(index, false);
66 TEST_UTIL.getMiniHBaseCluster().waitOnRegionServer(index);
67
68
69 while (TEST_UTIL.getHBaseCluster().getMaster().getServerManager().getOnlineServers().size() !=
70 index) {
71 Threads.sleep(10);
72 }
73 assertTrue(info.getNumRegionServers() == 3);
74 assertTrue(info.getNumDeadRegionServers() == 1);
75 }
76 }