Java Code Examples for org.apache.hadoop.util.Daemon#join()

The following examples show how to use org.apache.hadoop.util.Daemon#join() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: LeaseRenewer.java    From hadoop with Apache License 2.0 6 votes vote down vote up 
void interruptAndJoin() throws InterruptedException {
  Daemon daemonCopy = null;
  synchronized (this) {
    if (isRunning()) {
      daemon.interrupt();
      daemonCopy = daemon;
    }
  }
 
  if (daemonCopy != null) {
    if(LOG.isDebugEnabled()) {
      LOG.debug("Wait for lease checker to terminate");
    }
    daemonCopy.join();
  }
}
Example 2
Source File: TestBlockRecovery.java    From hadoop with Apache License 2.0 6 votes vote down vote up 
/**
 * BlockRecoveryFI_07. max replica length from all DNs is zero.
 *
 * @throws IOException in case of an error
 */
@Test
public void testZeroLenReplicas() throws IOException, InterruptedException {
  if(LOG.isDebugEnabled()) {
    LOG.debug("Running " + GenericTestUtils.getMethodName());
  }
  DataNode spyDN = spy(dn);
  doReturn(new ReplicaRecoveryInfo(block.getBlockId(), 0,
      block.getGenerationStamp(), ReplicaState.FINALIZED)).when(spyDN).
      initReplicaRecovery(any(RecoveringBlock.class));
  Daemon d = spyDN.recoverBlocks("fake NN", initRecoveringBlocks());
  d.join();
  DatanodeProtocol dnP = dn.getActiveNamenodeForBP(POOL_ID);
  verify(dnP).commitBlockSynchronization(
      block, RECOVERY_ID, 0, true, true, DatanodeID.EMPTY_ARRAY, null);
}
Example 3
Source File: LeaseRenewer.java    From big-c with Apache License 2.0 6 votes vote down vote up 
void interruptAndJoin() throws InterruptedException {
  Daemon daemonCopy = null;
  synchronized (this) {
    if (isRunning()) {
      daemon.interrupt();
      daemonCopy = daemon;
    }
  }
 
  if (daemonCopy != null) {
    if(LOG.isDebugEnabled()) {
      LOG.debug("Wait for lease checker to terminate");
    }
    daemonCopy.join();
  }
}
Example 4
Source File: TestBlockRecovery.java    From big-c with Apache License 2.0 6 votes vote down vote up 
/**
 * BlockRecoveryFI_07. max replica length from all DNs is zero.
 *
 * @throws IOException in case of an error
 */
@Test
public void testZeroLenReplicas() throws IOException, InterruptedException {
  if(LOG.isDebugEnabled()) {
    LOG.debug("Running " + GenericTestUtils.getMethodName());
  }
  DataNode spyDN = spy(dn);
  doReturn(new ReplicaRecoveryInfo(block.getBlockId(), 0,
      block.getGenerationStamp(), ReplicaState.FINALIZED)).when(spyDN).
      initReplicaRecovery(any(RecoveringBlock.class));
  Daemon d = spyDN.recoverBlocks("fake NN", initRecoveringBlocks());
  d.join();
  DatanodeProtocol dnP = dn.getActiveNamenodeForBP(POOL_ID);
  verify(dnP).commitBlockSynchronization(
      block, RECOVERY_ID, 0, true, true, DatanodeID.EMPTY_ARRAY, null);
}
Example 5
Source File: StandbySafeMode.java    From RDFS with Apache License 2.0 6 votes vote down vote up 
/**
 * Triggers failover processing for safe mode and blocks until we have left
 * safe mode.
 * 
 * @throws IOException
 */
protected void triggerFailover() throws IOException {
  clearDataStructures();
  for (DatanodeInfo node : namesystem.datanodeReport(DatanodeReportType.LIVE)) {
    liveDatanodes.add(node);
    outStandingHeartbeats.add(node);
  }
  safeModeState = SafeModeState.FAILOVER_IN_PROGRESS;
  safeModeMonitor = new Daemon(new SafeModeMonitor(namesystem, this));
  safeModeMonitor.start();
  try {
    safeModeMonitor.join();
  } catch (InterruptedException ie) {
    throw new IOException("triggerSafeMode() interruped()");
  }
  if (safeModeState != SafeModeState.AFTER_FAILOVER) {
    throw new RuntimeException("safeModeState is : " + safeModeState +
        " which does not indicate a successfull exit of safemode");
  }
}
Example 6
Source File: TestBlockRecovery.java    From hadoop with Apache License 2.0 5 votes vote down vote up 
/**
 * BlockRecoveryFI_05. One DN throws RecoveryInProgressException.
 *
 * @throws IOException
 *           in case of an error
 */
@Test
public void testRecoveryInProgressException()
  throws IOException, InterruptedException {
  if(LOG.isDebugEnabled()) {
    LOG.debug("Running " + GenericTestUtils.getMethodName());
  }
  DataNode spyDN = spy(dn);
  doThrow(new RecoveryInProgressException("Replica recovery is in progress")).
     when(spyDN).initReplicaRecovery(any(RecoveringBlock.class));
  Daemon d = spyDN.recoverBlocks("fake NN", initRecoveringBlocks());
  d.join();
  verify(spyDN, never()).syncBlock(
      any(RecoveringBlock.class), anyListOf(BlockRecord.class));
}
Example 7
Source File: TestBlockRecovery.java    From hadoop with Apache License 2.0 5 votes vote down vote up 
/**
 * BlockRecoveryFI_06. all datanodes throws an exception.
 *
 * @throws IOException
 *           in case of an error
 */
@Test
public void testErrorReplicas() throws IOException, InterruptedException {
  if(LOG.isDebugEnabled()) {
    LOG.debug("Running " + GenericTestUtils.getMethodName());
  }
  DataNode spyDN = spy(dn);
  doThrow(new IOException()).
     when(spyDN).initReplicaRecovery(any(RecoveringBlock.class));
  Daemon d = spyDN.recoverBlocks("fake NN", initRecoveringBlocks());
  d.join();
  verify(spyDN, never()).syncBlock(
      any(RecoveringBlock.class), anyListOf(BlockRecord.class));
}
Example 8
Source File: TestBlockRecovery.java    From big-c with Apache License 2.0 5 votes vote down vote up 
/**
 * BlockRecoveryFI_05. One DN throws RecoveryInProgressException.
 *
 * @throws IOException
 *           in case of an error
 */
@Test
public void testRecoveryInProgressException()
  throws IOException, InterruptedException {
  if(LOG.isDebugEnabled()) {
    LOG.debug("Running " + GenericTestUtils.getMethodName());
  }
  DataNode spyDN = spy(dn);
  doThrow(new RecoveryInProgressException("Replica recovery is in progress")).
     when(spyDN).initReplicaRecovery(any(RecoveringBlock.class));
  Daemon d = spyDN.recoverBlocks("fake NN", initRecoveringBlocks());
  d.join();
  verify(spyDN, never()).syncBlock(
      any(RecoveringBlock.class), anyListOf(BlockRecord.class));
}
Example 9
Source File: TestBlockRecovery.java    From big-c with Apache License 2.0 5 votes vote down vote up 
/**
 * BlockRecoveryFI_06. all datanodes throws an exception.
 *
 * @throws IOException
 *           in case of an error
 */
@Test
public void testErrorReplicas() throws IOException, InterruptedException {
  if(LOG.isDebugEnabled()) {
    LOG.debug("Running " + GenericTestUtils.getMethodName());
  }
  DataNode spyDN = spy(dn);
  doThrow(new IOException()).
     when(spyDN).initReplicaRecovery(any(RecoveringBlock.class));
  Daemon d = spyDN.recoverBlocks("fake NN", initRecoveringBlocks());
  d.join();
  verify(spyDN, never()).syncBlock(
      any(RecoveringBlock.class), anyListOf(BlockRecord.class));
}
Example 10
Source File: DFSClient.java    From RDFS with Apache License 2.0 5 votes vote down vote up 
void interruptAndJoin() throws InterruptedException {
  Daemon daemonCopy = null;
  synchronized (this) {
    if (daemon != null) {
      daemon.interrupt();
      daemonCopy = daemon;
    }
  }

  if (daemonCopy != null) {
    LOG.debug("Wait for lease checker to terminate");
    daemonCopy.join();
  }
}