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

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

    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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    TaskBatch batch = new TaskBatch();


    String tasknode = submitTaskAndWait(batch, "foo/1");


    byte[] data = ZKUtil.getData(zkw, tasknode);
    SplitLogTask slt = SplitLogTask.parseFrom(data);
    LOG.info("Task node created " + slt.toString());
    assertTrue(slt.isUnassigned(DUMMY_MASTER));
  }

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  @Test
  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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  public void testUnassignedOrphan() throws Exception {
    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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    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());
  }

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    try {
      int acquiredTasks = 0;
      waitForCounter(SplitLogCounters.tot_wkr_task_acquired, 0, 2, 6000);
      for (int i = 0; i < maxTasks; i++) {
        byte[] bytes = ZKUtil.getData(zkw, ZKSplitLog.getEncodedNodeName(zkw, TATAS + i));
        SplitLogTask slt = SplitLogTask.parseFrom(bytes);
        if (slt.isOwned(RS)) {
          acquiredTasks++;
        }
      }
      assertEquals(2, acquiredTasks);
    } finally {

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        new SplitLogWorker(zkw, TEST_UTIL.getConfiguration(), mockedRS, neverEndingTask);
    slw.start();
    try {
      waitForCounter(SplitLogCounters.tot_wkr_task_acquired, 0, 1, 1500);
      byte [] bytes = ZKUtil.getData(zkw, ZKSplitLog.getEncodedNodeName(zkw, TATAS));
      SplitLogTask slt = SplitLogTask.parseFrom(bytes);
      assertTrue(slt.isOwned(RS));
    } finally {
      stopSplitLogWorker(slw);
    }
  }

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      // Assert that either the tot_wkr_failed_to_grab_task_owned count was set of if
      // not it, that we fell through to the next counter in line and it was set.
      assertTrue(waitForCounterBoolean(SplitLogCounters.tot_wkr_failed_to_grab_task_owned, 0, 1, 1500, false) ||
          SplitLogCounters.tot_wkr_failed_to_grab_task_lost_race.get() == 1);
      byte [] bytes = ZKUtil.getData(zkw, ZKSplitLog.getEncodedNodeName(zkw, TRFT));
      SplitLogTask slt = SplitLogTask.parseFrom(bytes);
      assertTrue(slt.isOwned(SVR1) || slt.isOwned(SVR2));
    } finally {
      stopSplitLogWorker(slw1);
      stopSplitLogWorker(slw2);
    }
  }

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        CreateMode.PERSISTENT);


      waitForCounter(SplitLogCounters.tot_wkr_task_acquired, 0, 1, 8000);
      assertEquals(1, slw.taskReadySeq);
      byte [] bytes = ZKUtil.getData(zkw, PATH);
      SplitLogTask slt = SplitLogTask.parseFrom(bytes);
      assertTrue(slt.isOwned(SRV));
      slt = new SplitLogTask.Unassigned(MANAGER);
      ZKUtil.setData(zkw, PATH, slt.toByteArray());
      waitForCounter(SplitLogCounters.tot_wkr_preempt_task, 0, 1, 1500);
    } finally {
      stopSplitLogWorker(slw);
    }
  }

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    try {
      Thread.yield(); // let the worker start
      Thread.sleep(100);
      waitForCounter(SplitLogCounters.tot_wkr_task_grabing, 0, 1, 1500);


      SplitLogTask unassignedManager = new SplitLogTask.Unassigned(MANAGER);
      zkw.getRecoverableZooKeeper().create(PATH1, unassignedManager.toByteArray(),
        Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);


      waitForCounter(SplitLogCounters.tot_wkr_task_acquired, 0, 1, 1500);
      // now the worker is busy doing the above task


      // create another task
      final String PATH2 = ZKSplitLog.getEncodedNodeName(zkw, "tmt_task_2");
      zkw.getRecoverableZooKeeper().create(PATH2, unassignedManager.toByteArray(),
        Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);


      // preempt the first task, have it owned by another worker
      final ServerName anotherWorker = ServerName.valueOf("another-worker,1,1");
      SplitLogTask slt = new SplitLogTask.Owned(anotherWorker);
      ZKUtil.setData(zkw, PATH1, slt.toByteArray());
      waitForCounter(SplitLogCounters.tot_wkr_preempt_task, 0, 1, 1500);


      waitForCounter(SplitLogCounters.tot_wkr_task_acquired, 1, 2, 1500);
      assertEquals(2, slw.taskReadySeq);
      byte [] bytes = ZKUtil.getData(zkw, PATH2);
      slt = SplitLogTask.parseFrom(bytes);
      assertTrue(slt.isOwned(SRV));
    } finally {
      stopSplitLogWorker(slw);
    }
  }

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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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