Examples of org.apache.hadoop.hbase.SplitLogTask.toByteArray()

Class org.apache.hadoop.hbase.SplitLogTask

Examples of org.apache.hadoop.hbase.SplitLogTask.toByteArray()

org.apache.hadoop.hbase.SplitLogTask.toByteArray()
@return This instance serialized into a byte array @see #parseFrom(byte[])


    // create an orphan task in OWNED state
    String tasknode1 = ZKSplitLog.getEncodedNodeName(zkw, "orphan/1");
    final ServerName worker1 = ServerName.valueOf("worker1,1,1");
    SplitLogTask slt = new SplitLogTask.Owned(worker1);
    zkw.getRecoverableZooKeeper().create(tasknode1, slt.toByteArray(), Ids.OPEN_ACL_UNSAFE,
        CreateMode.PERSISTENT);


    slm = new SplitLogManager(zkw, conf, stopper, master, DUMMY_MASTER);
    waitForCounter(tot_mgr_orphan_task_acquired, 0, 1, to/2);

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    // keep updating the orphan owned node every to/2 seconds
    for (int i = 0; i < (3 * to)/100; i++) {
      Thread.sleep(100);
      final ServerName worker2 = ServerName.valueOf("worker1,1,1");
      slt = new SplitLogTask.Owned(worker2);
      ZKUtil.setData(zkw, tasknode1, slt.toByteArray());
    }


    // since we have stopped heartbeating the owned node therefore it should
    // get resubmitted
    LOG.info("waiting for manager to resubmit the orphan task");

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    String tasknode = submitTaskAndWait(batch, "foo/1");
    int version = ZKUtil.checkExists(zkw, tasknode);
    final ServerName worker1 = ServerName.valueOf("worker1,1,1");
    SplitLogTask slt = new SplitLogTask.Owned(worker1);
    ZKUtil.setData(zkw, tasknode, slt.toByteArray());
    if (tot_mgr_heartbeat.get() == 0) waitForCounter(tot_mgr_heartbeat, 0, 1, to/2);
    slm.handleDeadWorker(worker1);
    if (tot_mgr_resubmit.get() == 0) waitForCounter(tot_mgr_resubmit, 0, 1, to+to/2);
    if (tot_mgr_resubmit_dead_server_task.get() == 0) {
      waitForCounter(tot_mgr_resubmit_dead_server_task, 0, 1, to + to/2);

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    String tasknode = submitTaskAndWait(batch, "foo/1");
    final ServerName worker1 = ServerName.valueOf("worker1,1,1");


    SplitLogTask slt = new SplitLogTask.Owned(worker1);
    ZKUtil.setData(zkw, tasknode, slt.toByteArray());
    if (tot_mgr_heartbeat.get() == 0) waitForCounter(tot_mgr_heartbeat, 0, 1, to/2);


    // Not yet resubmitted.
    Assert.assertEquals(0, tot_mgr_resubmit.get());

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  protected static int attemptToOwnTask(boolean isFirstTime, ZooKeeperWatcher zkw,
      ServerName server, String task, int taskZKVersion) {
    int latestZKVersion = FAILED_TO_OWN_TASK;
    try {
      SplitLogTask slt = new SplitLogTask.Owned(server);
      Stat stat = zkw.getRecoverableZooKeeper().setData(task, slt.toByteArray(), taskZKVersion);
      if (stat == null) {
        LOG.warn("zk.setData() returned null for path " + task);
        SplitLogCounters.tot_wkr_task_heartbeat_failed.incrementAndGet();
        return FAILED_TO_OWN_TASK;
      }

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    String tasknode = submitTaskAndWait(batch, "foo/1");
    final ServerName worker1 = new ServerName("worker1,1,1");


    SplitLogTask slt = new SplitLogTask.Owned(worker1);
    ZKUtil.setData(zkw, tasknode, slt.toByteArray());
    if (tot_mgr_heartbeat.get() == 0) waitForCounter(tot_mgr_heartbeat, 0, 1, to/2);


    // Not yet resubmitted.
    Assert.assertEquals(0, tot_mgr_resubmit.get());

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  public void testOrphanTaskAcquisition() throws Exception {
    LOG.info("TestOrphanTaskAcquisition");


    String tasknode = ZKSplitLog.getEncodedNodeName(zkw, "orphan/test/slash");
    SplitLogTask slt = new SplitLogTask.Owned(DUMMY_MASTER);
    zkw.getRecoverableZooKeeper().create(tasknode, slt.toByteArray(), Ids.OPEN_ACL_UNSAFE,
        CreateMode.PERSISTENT);


    slm = new SplitLogManager(zkw, conf, stopper, master, DUMMY_MASTER);
    waitForCounter(tot_mgr_orphan_task_acquired, 0, 1, to/2);
    Task task = slm.findOrCreateOrphanTask(tasknode);

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    LOG.info("TestUnassignedOrphan - an unassigned task is resubmitted at" +
        " startup");
    String tasknode = ZKSplitLog.getEncodedNodeName(zkw, "orphan/test/slash");
    //create an unassigned orphan task
    SplitLogTask slt = new SplitLogTask.Unassigned(DUMMY_MASTER);
    zkw.getRecoverableZooKeeper().create(tasknode, slt.toByteArray(), Ids.OPEN_ACL_UNSAFE,
        CreateMode.PERSISTENT);
    int version = ZKUtil.checkExists(zkw, tasknode);


    slm = new SplitLogManager(zkw, conf, stopper, master, DUMMY_MASTER);
    waitForCounter(tot_mgr_orphan_task_acquired, 0, 1, to/2);

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    int version = ZKUtil.checkExists(zkw, tasknode);
    final ServerName worker1 = new ServerName("worker1,1,1");
    final ServerName worker2 = new ServerName("worker2,1,1");
    final ServerName worker3 = new ServerName("worker3,1,1");
    SplitLogTask slt = new SplitLogTask.Owned(worker1);
    ZKUtil.setData(zkw, tasknode, slt.toByteArray());
    waitForCounter(tot_mgr_heartbeat, 0, 1, to/2);
    waitForCounter(tot_mgr_resubmit, 0, 1, to + to/2);
    int version1 = ZKUtil.checkExists(zkw, tasknode);
    assertTrue(version1 > version);
    slt = new SplitLogTask.Owned(worker2);

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    waitForCounter(tot_mgr_heartbeat, 0, 1, to/2);
    waitForCounter(tot_mgr_resubmit, 0, 1, to + to/2);
    int version1 = ZKUtil.checkExists(zkw, tasknode);
    assertTrue(version1 > version);
    slt = new SplitLogTask.Owned(worker2);
    ZKUtil.setData(zkw, tasknode, slt.toByteArray());
    waitForCounter(tot_mgr_heartbeat, 1, 2, to/2);
    waitForCounter(tot_mgr_resubmit, 1, 2, to + to/2);
    int version2 = ZKUtil.checkExists(zkw, tasknode);
    assertTrue(version2 > version1);
    slt = new SplitLogTask.Owned(worker3);

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