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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.master.HMaster;
26 import org.apache.hadoop.hbase.MediumTests;
27 import org.apache.hadoop.hbase.master.MetricsMasterWrapperImpl;
28 import org.apache.hadoop.hbase.util.Threads;
29 import org.junit.AfterClass;
30 import org.junit.BeforeClass;
31 import org.junit.Test;
32 import org.junit.experimental.categories.Category;
33
34 @Category(MediumTests.class)
35 public class TestMasterMetricsWrapper {
36 private static final Log LOG = LogFactory.getLog(TestMasterMetricsWrapper.class);
37
38 private static final HBaseTestingUtility TEST_UTIL = new HBaseTestingUtility();
39
40 @BeforeClass
41 public static void setup() throws Exception {
42 TEST_UTIL.startMiniCluster(1, 4);
43 }
44
45 @AfterClass
46 public static void teardown() throws Exception {
47 TEST_UTIL.shutdownMiniCluster();
48 }
49
50 @Test (timeout = 30000)
51 public void testInfo() {
52 HMaster master = TEST_UTIL.getHBaseCluster().getMaster();
53 MetricsMasterWrapperImpl info = new MetricsMasterWrapperImpl(master);
54 assertEquals(master.getAverageLoad(), info.getAverageLoad(), 0);
55 assertEquals(master.getClusterId(), info.getClusterId());
56 assertEquals(master.getMasterActiveTime(), info.getActiveTime());
57 assertEquals(master.getMasterStartTime(), info.getStartTime());
58 assertEquals(master.getCoprocessors().length, info.getCoprocessors().length);
59 assertEquals(master.getServerManager().getOnlineServersList().size(), info.getNumRegionServers());
60 assertTrue(info.getNumRegionServers() == 4);
61
62 String zkServers = info.getZookeeperQuorum();
63 assertEquals(zkServers.split(",").length, TEST_UTIL.getZkCluster().getZooKeeperServerNum());
64
65 final int index = 3;
66 LOG.info("Stopping " + TEST_UTIL.getMiniHBaseCluster().getRegionServer(index));
67 TEST_UTIL.getMiniHBaseCluster().stopRegionServer(index, false);
68 TEST_UTIL.getMiniHBaseCluster().waitOnRegionServer(index);
69
70
71 while (TEST_UTIL.getHBaseCluster().getMaster().getServerManager().getOnlineServers().size() !=
72 index) {
73 Threads.sleep(10);
74 }
75 assertTrue(info.getNumRegionServers() == 3);
76 assertTrue(info.getNumDeadRegionServers() == 1);
77 }
78 }