Examples of org.apache.hadoop.hbase.SplitLogTask$Owned

org.apache.hadoop.hbase.SplitLogTask
State of a WAL log split during distributed splitting. State is kept up in zookeeper. Encapsulates protobuf serialization/deserialization so we don't leak generated pb outside of this class. Used by regionserver and master packages.
Immutable

    String tasknode = submitTaskAndWait(batch, "foo/1");
    int version = ZKUtil.checkExists(zkw, tasknode);
    final ServerName worker1 = ServerName.valueOf("worker1,1,1");
    final ServerName worker2 = ServerName.valueOf("worker2,1,1");
    final ServerName worker3 = ServerName.valueOf("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);
    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);
    ZKUtil.setData(zkw, tasknode, slt.toByteArray());
    waitForCounter(tot_mgr_heartbeat, 2, 3, to/2);
    waitForCounter(tot_mgr_resubmit_threshold_reached, 0, 1, to + to/2);
    Thread.sleep(to + to/2);
    assertEquals(2L, tot_mgr_resubmit.get() - tot_mgr_resubmit_force.get());
  }

View Full Code Here

    TaskBatch batch = new TaskBatch();


    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());
    waitForCounter(tot_mgr_heartbeat, 0, 1, to/2);
    waitForCounter(new Expr() {
      @Override
      public long eval() {
        return (tot_mgr_resubmit.get() + tot_mgr_resubmit_failed.get());
      }
    }, 0, 1, 5*60000); // wait long enough
    Assert.assertEquals("Could not run test. Lost ZK connection?", 0, tot_mgr_resubmit_failed.get());
    int version1 = ZKUtil.checkExists(zkw, tasknode);
    assertTrue(version1 > version);
    byte[] taskstate = ZKUtil.getData(zkw, tasknode);
    slt = SplitLogTask.parseFrom(taskstate);
    assertTrue(slt.isUnassigned(DUMMY_MASTER));


    waitForCounter(tot_mgr_rescan_deleted, 0, 1, to/2);
  }

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    slm = new SplitLogManager(zkw, conf, stopper, master, DUMMY_MASTER);
    TaskBatch batch = new TaskBatch();
    String tasknode = submitTaskAndWait(batch, "foo/1");
    final ServerName worker1 = ServerName.valueOf("worker1,1,1");
    SplitLogTask slt = new SplitLogTask.Done(worker1);
    ZKUtil.setData(zkw, tasknode, slt.toByteArray());
    synchronized (batch) {
      while (batch.installed != batch.done) {
        batch.wait();
      }
    }

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    slm = new SplitLogManager(zkw, conf, stopper, master, DUMMY_MASTER);
    TaskBatch batch = new TaskBatch();


    String tasknode = submitTaskAndWait(batch, "foo/1");
    final ServerName worker1 = ServerName.valueOf("worker1,1,1");
    SplitLogTask slt = new SplitLogTask.Err(worker1);
    ZKUtil.setData(zkw, tasknode, slt.toByteArray());


    synchronized (batch) {
      while (batch.installed != batch.error) {
        batch.wait();
      }

View Full Code Here

    TaskBatch batch = new TaskBatch();
    String tasknode = submitTaskAndWait(batch, "foo/1");
    assertEquals(tot_mgr_resubmit.get(), 0);
    final ServerName worker1 = ServerName.valueOf("worker1,1,1");
    assertEquals(tot_mgr_resubmit.get(), 0);
    SplitLogTask slt = new SplitLogTask.Resigned(worker1);
    assertEquals(tot_mgr_resubmit.get(), 0);
    ZKUtil.setData(zkw, tasknode, slt.toByteArray());
    int version = ZKUtil.checkExists(zkw, tasknode);
    // Could be small race here.
    if (tot_mgr_resubmit.get() == 0) waitForCounter(tot_mgr_resubmit, 0, 1, to/2);
    assertEquals(tot_mgr_resubmit.get(), 1);
    int version1 = ZKUtil.checkExists(zkw, tasknode);
    assertTrue("version1=" + version1 + ", version=" + version, version1 > version);


    byte[] taskstate = ZKUtil.getData(zkw, tasknode);
    slt = SplitLogTask.parseFrom(taskstate);
    assertTrue(slt.isUnassigned(DUMMY_MASTER));
  }

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        " resubmit");


    // 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);


    // submit another task which will stay in unassigned mode
    TaskBatch batch = new TaskBatch();
    submitTaskAndWait(batch, "foo/1");


    // 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");

View Full Code Here

    TaskBatch batch = new TaskBatch();


    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);
    }


    int version1 = ZKUtil.checkExists(zkw, tasknode);
    assertTrue(version1 > version);
    byte[] taskstate = ZKUtil.getData(zkw, tasknode);
    slt = SplitLogTask.parseFrom(taskstate);
    assertTrue(slt.isUnassigned(DUMMY_MASTER));
    return;
  }

View Full Code Here

    TaskBatch batch = new TaskBatch();


    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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      } catch (KeeperException e) {
        LOG.warn("Failed to get data for znode " + path, e);
        SplitLogCounters.tot_wkr_failed_to_grab_task_exception.incrementAndGet();
        return;
      }
      SplitLogTask slt;
      try {
        slt = SplitLogTask.parseFrom(data);
      } catch (DeserializationException e) {
        LOG.warn("Failed parse data for znode " + path, e);
        SplitLogCounters.tot_wkr_failed_to_grab_task_exception.incrementAndGet();
        return;
      }
      if (!slt.isUnassigned()) {
        SplitLogCounters.tot_wkr_failed_to_grab_task_owned.incrementAndGet();
        return;
      }


      currentVersion = attemptToOwnTask(true, watcher, serverName, path, stat.getVersion());

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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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Related Classes of org.apache.hadoop.hbase.SplitLogTask$Owned

org.apache.hadoop.hbase.coordination.ZKSplitLogManagerCoordination

org.apache.hadoop.hbase.coordination.ZkSplitLogWorkerCoordination

org.apache.hadoop.hbase.master.SplitLogManager

org.apache.hadoop.hbase.master.TestSplitLogManager

org.apache.hadoop.hbase.regionserver.SplitLogWorker

org.apache.hadoop.hbase.regionserver.TestSplitLogWorker

org.apache.hadoop.hbase.exceptions.DeserializationException

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