コード例 #1
0
  @Test(timeout = 30000)
  public void testInfo() {
    HMaster master = TEST_UTIL.getHBaseCluster().getMaster();
    MetricsMasterWrapperImpl info = new MetricsMasterWrapperImpl(master);
    assertEquals(master.getSplitPlanCount(), info.getSplitPlanCount(), 0);
    assertEquals(master.getMergePlanCount(), info.getMergePlanCount(), 0);
    assertEquals(master.getAverageLoad(), info.getAverageLoad(), 0);
    assertEquals(master.getClusterId(), info.getClusterId());
    assertEquals(master.getMasterActiveTime(), info.getActiveTime());
    assertEquals(master.getMasterStartTime(), info.getStartTime());
    assertEquals(master.getMasterCoprocessors().length, info.getCoprocessors().length);
    assertEquals(
        master.getServerManager().getOnlineServersList().size(), info.getNumRegionServers());
    assertEquals(5, info.getNumRegionServers());

    String zkServers = info.getZookeeperQuorum();
    assertEquals(zkServers.split(",").length, TEST_UTIL.getZkCluster().getZooKeeperServerNum());

    final int index = 3;
    LOG.info("Stopping " + TEST_UTIL.getMiniHBaseCluster().getRegionServer(index));
    TEST_UTIL.getMiniHBaseCluster().stopRegionServer(index, false);
    TEST_UTIL.getMiniHBaseCluster().waitOnRegionServer(index);
    // We stopped the regionserver but could take a while for the master to notice it so hang here
    // until it does... then move forward to see if metrics wrapper notices.
    while (TEST_UTIL.getHBaseCluster().getMaster().getServerManager().getOnlineServers().size()
        != 4) {
      Threads.sleep(10);
    }
    assertEquals(4, info.getNumRegionServers());
    assertEquals(1, info.getNumDeadRegionServers());
    assertEquals(1, info.getNumWALFiles());
  }