Examples of org.apache.hadoop.hbase.MiniHBaseCluster.waitForActiveAndReadyMaster()

Class org.apache.hadoop.hbase.MiniHBaseCluster

Examples of org.apache.hadoop.hbase.MiniHBaseCluster.waitForActiveAndReadyMaster()

org.apache.hadoop.hbase.MiniHBaseCluster.waitForActiveAndReadyMaster()
Blocks until there is an active master and that master has completed initialization. @return true if an active master becomes available. false if there are nomasters left. @throws InterruptedException

  public void testHBaseCluster() throws Exception {
    byte[] sb = "sb".getBytes();
    htu.startMiniZKCluster();


    MiniHBaseCluster hbm = htu.startMiniHBaseCluster(1, 1);
    hbm.waitForActiveAndReadyMaster();
    hbm.getRegionServer(0).waitForServerOnline();


    // We want to have a datanode with the same name as the region server, so
    //  we're going to get the regionservername, and start a new datanode with this name.
    String host4 = hbm.getRegionServer(0).getServerName().getHostname();

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    cluster.stopMaster(0, false);
    cluster.waitOnMaster(0);


    // start up a new master
    cluster.startMaster();
    assertTrue(cluster.waitForActiveAndReadyMaster());


    // test that the same unmanaged connection works with a new
    // HBaseAdmin and can connect to the new master;
    HBaseAdmin newAdmin = new HBaseAdmin(conn);
    assertTrue(newAdmin.tableExists(tableName));

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  public void testRegionShouldNotBeDeployed() throws Exception {
    String table = "tableRegionShouldNotBeDeployed";
    try {
      LOG.info("Starting testRegionShouldNotBeDeployed.");
      MiniHBaseCluster cluster = TEST_UTIL.getHBaseCluster();
      assertTrue(cluster.waitForActiveAndReadyMaster());


      // Create a ZKW to use in the test
      ZooKeeperWatcher zkw = HBaseTestingUtility.getZooKeeperWatcher(TEST_UTIL);


      FileSystem filesystem = FileSystem.get(conf);

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  public void testHBaseCluster() throws Exception {
    byte[] sb = "sb".getBytes();
    htu.startMiniZKCluster();


    MiniHBaseCluster hbm = htu.startMiniHBaseCluster(1, 1);
    hbm.waitForActiveAndReadyMaster();
    HRegionServer targetRs = hbm.getMaster();


    // We want to have a datanode with the same name as the region server, so
    //  we're going to get the regionservername, and start a new datanode with this name.
    String host4 = targetRs.getServerName().getHostname();

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    // get all the master threads
    List<MasterThread> masterThreads = cluster.getMasterThreads();
    assertEquals(1, masterThreads.size());


    // only one master thread, let's wait for it to be initialized
    assertTrue(cluster.waitForActiveAndReadyMaster());
    HMaster master = masterThreads.get(0).getMaster();
    assertTrue(master.isActiveMaster());
    assertTrue(master.isInitialized());


    // disable load balancing on this master

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    // Start up a new master
    log("Starting up a new master");
    master = cluster.startMaster().getMaster();
    log("Waiting for master to be ready");
    cluster.waitForActiveAndReadyMaster();
    log("Master is ready");


    // Get new region states since master restarted
    regionStates = master.getAssignmentManager().getRegionStates();
    // Merging region should remain merging

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    // get all the master threads
    List<MasterThread> masterThreads = cluster.getMasterThreads();
    assertEquals(1, masterThreads.size());


    // only one master thread, let's wait for it to be initialized
    assertTrue(cluster.waitForActiveAndReadyMaster());
    HMaster master = masterThreads.get(0).getMaster();
    assertTrue(master.isActiveMaster());
    assertTrue(master.isInitialized());


    // disable load balancing on this master

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      Threads.sleep(10);
    }
    log("Starting up a new master");
    master = cluster.startMaster().getMaster();
    log("Waiting for master to be ready");
    assertTrue(cluster.waitForActiveAndReadyMaster());
    log("Master is ready");


    // Wait until SSH processing completed for dead server.
    while (master.getServerManager().areDeadServersInProgress()) {
      Thread.sleep(10);

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    LOG.debug("\n\nStopping the active master " + active.getServerName() + "\n");
    cluster.stopMaster(activeIndex, false);
    cluster.waitOnMaster(activeIndex);


    // wait for an active master to show up and be ready
    assertTrue(cluster.waitForActiveAndReadyMaster());


    LOG.debug("\n\nVerifying backup master is now active\n");
    // should only have one master now
    assertEquals(1, masterThreads.size());

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    // get all the master threads
    List<MasterThread> masterThreads = cluster.getMasterThreads();
    assertEquals(1, masterThreads.size());


    // only one master thread, let's wait for it to be initialized
    assertTrue(cluster.waitForActiveAndReadyMaster());
    HMaster master = masterThreads.get(0).getMaster();
    assertTrue(master.isActiveMaster());
    assertTrue(master.isInitialized());


    // Create a table with a region online

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