Java Code Examples for org.apache.flink.util.ExceptionUtils#rethrowIfFatalError()

private static <T> void restoreHook(
		final Object state,
		final MasterTriggerRestoreHook<?> hook,
		final long checkpointId) throws FlinkException {

	@SuppressWarnings("unchecked")
	final T typedState = (T) state;

	@SuppressWarnings("unchecked")
	final MasterTriggerRestoreHook<T> typedHook = (MasterTriggerRestoreHook<T>) hook;

	try {
		typedHook.restoreCheckpoint(checkpointId, typedState);
	}
	catch (FlinkException e) {
		throw e;
	}
	catch (Throwable t) {
		// catch all here, including Errors that may come from dependency and classpath issues
		ExceptionUtils.rethrowIfFatalError(t);
		throw new FlinkException("Error while calling restoreCheckpoint on checkpoint hook '"
				+ hook.getIdentifier() + '\'', t);
	}
}
 

private static <T> void restoreHook(
		final Object state,
		final MasterTriggerRestoreHook<?> hook,
		final long checkpointId) throws FlinkException {

	@SuppressWarnings("unchecked")
	final T typedState = (T) state;

	@SuppressWarnings("unchecked")
	final MasterTriggerRestoreHook<T> typedHook = (MasterTriggerRestoreHook<T>) hook;

	try {
		typedHook.restoreCheckpoint(checkpointId, typedState);
	}
	catch (FlinkException e) {
		throw e;
	}
	catch (Throwable t) {
		// catch all here, including Errors that may come from dependency and classpath issues
		ExceptionUtils.rethrowIfFatalError(t);
		throw new FlinkException("Error while calling restoreCheckpoint on checkpoint hook '"
				+ hook.getIdentifier() + '\'', t);
	}
}
 

private static <T> void restoreHook(
		final Object state,
		final MasterTriggerRestoreHook<?> hook,
		final long checkpointId) throws FlinkException {

	@SuppressWarnings("unchecked")
	final T typedState = (T) state;

	@SuppressWarnings("unchecked")
	final MasterTriggerRestoreHook<T> typedHook = (MasterTriggerRestoreHook<T>) hook;

	try {
		typedHook.restoreCheckpoint(checkpointId, typedState);
	}
	catch (FlinkException e) {
		throw e;
	}
	catch (Throwable t) {
		// catch all here, including Errors that may come from dependency and classpath issues
		ExceptionUtils.rethrowIfFatalError(t);
		throw new FlinkException("Error while calling restoreCheckpoint on checkpoint hook '"
				+ hook.getIdentifier() + '\'', t);
	}
}
 

@Override
public CompletableFuture<Acknowledge> sendOperatorEventToTask(
		ExecutionAttemptID executionAttemptID,
		OperatorID operatorId,
		SerializedValue<OperatorEvent> evt) {

	log.debug("Operator event for {} - {}", executionAttemptID, operatorId);

	final Task task = taskSlotTable.getTask(executionAttemptID);
	if (task == null) {
		return FutureUtils.completedExceptionally(new TaskNotRunningException(
			"Task " + executionAttemptID.toHexString() + " not running on TaskManager"));
	}

	try {
		task.deliverOperatorEvent(operatorId, evt);
		return CompletableFuture.completedFuture(Acknowledge.get());
	}
	catch (Throwable t) {
		ExceptionUtils.rethrowIfFatalError(t);
		return FutureUtils.completedExceptionally(t);
	}
}
 

private boolean tryClose() {
	try {
		Files.deleteIfExists(file.toPath());
		return true;
	} catch (Throwable t) {
		ExceptionUtils.rethrowIfFatalError(t);
	}
	return false;
}
 

/**
 * Called whenever a vertex reaches state FINISHED (completed successfully).
 * Once all vertices are in the FINISHED state, the program is successfully done.
 */
void vertexFinished() {
	assertRunningInJobMasterMainThread();
	final int numFinished = verticesFinished.incrementAndGet();
	if (numFinished == numVerticesTotal) {
		// done :-)

		// check whether we are still in "RUNNING" and trigger the final cleanup
		if (state == JobStatus.RUNNING) {
			// we do the final cleanup in the I/O executor, because it may involve
			// some heavier work

			try {
				for (ExecutionJobVertex ejv : verticesInCreationOrder) {
					ejv.getJobVertex().finalizeOnMaster(getUserClassLoader());
				}
			}
			catch (Throwable t) {
				ExceptionUtils.rethrowIfFatalError(t);
				failGlobal(new Exception("Failed to finalize execution on master", t));
				return;
			}

			// if we do not make this state transition, then a concurrent
			// cancellation or failure happened
			if (transitionState(JobStatus.RUNNING, JobStatus.FINISHED)) {
				onTerminalState(JobStatus.FINISHED);
			}
		}
	}
}
 

private boolean tryClose() {
	try {
		Files.deleteIfExists(file.toPath());
		return true;
	} catch (Throwable t) {
		ExceptionUtils.rethrowIfFatalError(t);
	}
	return false;
}
 

/**
 * Called whenever a vertex reaches state FINISHED (completed successfully).
 * Once all vertices are in the FINISHED state, the program is successfully done.
 */
void vertexFinished() {
	assertRunningInJobMasterMainThread();
	final int numFinished = verticesFinished.incrementAndGet();
	if (numFinished == numVerticesTotal) {
		// done :-)

		// check whether we are still in "RUNNING" and trigger the final cleanup
		if (state == JobStatus.RUNNING) {
			// we do the final cleanup in the I/O executor, because it may involve
			// some heavier work

			try {
				for (ExecutionJobVertex ejv : verticesInCreationOrder) {
					ejv.getJobVertex().finalizeOnMaster(getUserClassLoader());
				}
			}
			catch (Throwable t) {
				ExceptionUtils.rethrowIfFatalError(t);
				failGlobal(new Exception("Failed to finalize execution on master", t));
				return;
			}

			// if we do not make this state transition, then a concurrent
			// cancellation or failure happened
			if (transitionState(JobStatus.RUNNING, JobStatus.FINISHED)) {
				onTerminalState(JobStatus.FINISHED);
			}
		}
	}
}
 

/**
 * Tries to get the system page size. If the page size cannot be determined, this
 * returns -1.
 *
 * <p>This internally relies on the presence of "unsafe" and the resolution via some
 * Netty utilities.
 */
public static int getSystemPageSize() {
	try {
		return PageSizeUtilInternal.getSystemPageSize();
	}
	catch (Throwable t) {
		ExceptionUtils.rethrowIfFatalError(t);
		return PAGE_SIZE_UNKNOWN;
	}
}
 

private boolean tryClose() {
	try {
		Files.deleteIfExists(file.toPath());
		return true;
	} catch (Throwable t) {
		ExceptionUtils.rethrowIfFatalError(t);
	}
	return false;
}
 

/**
 * Called whenever a vertex reaches state FINISHED (completed successfully).
 * Once all vertices are in the FINISHED state, the program is successfully done.
 */
void vertexFinished() {
	assertRunningInJobMasterMainThread();
	final int numFinished = ++verticesFinished;
	if (numFinished == numVerticesTotal) {
		// done :-)

		// check whether we are still in "RUNNING" and trigger the final cleanup
		if (state == JobStatus.RUNNING) {
			// we do the final cleanup in the I/O executor, because it may involve
			// some heavier work

			try {
				for (ExecutionJobVertex ejv : verticesInCreationOrder) {
					ejv.getJobVertex().finalizeOnMaster(getUserClassLoader());
				}
			}
			catch (Throwable t) {
				ExceptionUtils.rethrowIfFatalError(t);
				failGlobal(new Exception("Failed to finalize execution on master", t));
				return;
			}

			// if we do not make this state transition, then a concurrent
			// cancellation or failure happened
			if (transitionState(JobStatus.RUNNING, JobStatus.FINISHED)) {
				onTerminalState(JobStatus.FINISHED);
			}
		}
	}
}
 

/**
 * Tries to get the system page size. If the page size cannot be determined, this
 * returns -1.
 *
 * <p>This internally relies on the presence of "unsafe" and the resolution via some
 * Netty utilities.
 */
public static int getSystemPageSize() {
	try {
		return PageSizeUtilInternal.getSystemPageSize();
	}
	catch (Throwable t) {
		ExceptionUtils.rethrowIfFatalError(t);
		return PAGE_SIZE_UNKNOWN;
	}
}