Java Code Examples for org.apache.flink.core.fs.local.LocalFileSystem#getSharedInstance()

The following examples show how to use org.apache.flink.core.fs.local.LocalFileSystem#getSharedInstance() . 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: LimitedConnectionsFileSystemTest.java    From Flink-CEPplus with Apache License 2.0 6 votes vote down vote up 
@Test
public void testConstructionNumericOverflow() {
	final LimitedConnectionsFileSystem limitedFs = new LimitedConnectionsFileSystem(
			LocalFileSystem.getSharedInstance(),
			Integer.MAX_VALUE,  // unlimited total
			Integer.MAX_VALUE,  // limited outgoing
			Integer.MAX_VALUE,  // unlimited incoming
			Long.MAX_VALUE - 1, // long timeout, close to overflow
			Long.MAX_VALUE - 1); // long timeout, close to overflow

	assertEquals(Integer.MAX_VALUE, limitedFs.getMaxNumOpenStreamsTotal());
	assertEquals(Integer.MAX_VALUE, limitedFs.getMaxNumOpenOutputStreams());
	assertEquals(Integer.MAX_VALUE, limitedFs.getMaxNumOpenInputStreams());

	assertTrue(limitedFs.getStreamOpenTimeout() > 0);
	assertTrue(limitedFs.getStreamInactivityTimeout() > 0);
}
Example 2
Source File: PendingCheckpointTest.java    From Flink-CEPplus with Apache License 2.0 6 votes vote down vote up 
private PendingCheckpoint createPendingCheckpoint(CheckpointProperties props, Executor executor) throws IOException {

		final Path checkpointDir = new Path(tmpFolder.newFolder().toURI());
		final FsCheckpointStorageLocation location = new FsCheckpointStorageLocation(
				LocalFileSystem.getSharedInstance(),
				checkpointDir, checkpointDir, checkpointDir,
				CheckpointStorageLocationReference.getDefault(),
				1024);

		final Map<ExecutionAttemptID, ExecutionVertex> ackTasks = new HashMap<>(ACK_TASKS);

		return new PendingCheckpoint(
			new JobID(),
			0,
			1,
			ackTasks,
			props,
			location,
			executor);
	}
Example 3
Source File: LimitedConnectionsFileSystemTest.java    From flink with Apache License 2.0 6 votes vote down vote up 
@Test
public void testConstructionNumericOverflow() {
	final LimitedConnectionsFileSystem limitedFs = new LimitedConnectionsFileSystem(
			LocalFileSystem.getSharedInstance(),
			Integer.MAX_VALUE,  // unlimited total
			Integer.MAX_VALUE,  // limited outgoing
			Integer.MAX_VALUE,  // unlimited incoming
			Long.MAX_VALUE - 1, // long timeout, close to overflow
			Long.MAX_VALUE - 1); // long timeout, close to overflow

	assertEquals(Integer.MAX_VALUE, limitedFs.getMaxNumOpenStreamsTotal());
	assertEquals(Integer.MAX_VALUE, limitedFs.getMaxNumOpenOutputStreams());
	assertEquals(Integer.MAX_VALUE, limitedFs.getMaxNumOpenInputStreams());

	assertTrue(limitedFs.getStreamOpenTimeout() > 0);
	assertTrue(limitedFs.getStreamInactivityTimeout() > 0);
}
Example 4
Source File: PendingCheckpointTest.java    From flink with Apache License 2.0 6 votes vote down vote up 
private PendingCheckpoint createPendingCheckpoint(CheckpointProperties props, Executor executor) throws IOException {

		final Path checkpointDir = new Path(tmpFolder.newFolder().toURI());
		final FsCheckpointStorageLocation location = new FsCheckpointStorageLocation(
				LocalFileSystem.getSharedInstance(),
				checkpointDir, checkpointDir, checkpointDir,
				CheckpointStorageLocationReference.getDefault(),
				1024,
				4096);

		final Map<ExecutionAttemptID, ExecutionVertex> ackTasks = new HashMap<>(ACK_TASKS);

		return new PendingCheckpoint(
			new JobID(),
			0,
			1,
			ackTasks,
			props,
			location,
			executor);
	}
Example 5
Source File: LimitedConnectionsFileSystemTest.java    From flink with Apache License 2.0 6 votes vote down vote up 
@Test
public void testConstructionNumericOverflow() {
	final LimitedConnectionsFileSystem limitedFs = new LimitedConnectionsFileSystem(
			LocalFileSystem.getSharedInstance(),
			Integer.MAX_VALUE,  // unlimited total
			Integer.MAX_VALUE,  // limited outgoing
			Integer.MAX_VALUE,  // unlimited incoming
			Long.MAX_VALUE - 1, // long timeout, close to overflow
			Long.MAX_VALUE - 1); // long timeout, close to overflow

	assertEquals(Integer.MAX_VALUE, limitedFs.getMaxNumOpenStreamsTotal());
	assertEquals(Integer.MAX_VALUE, limitedFs.getMaxNumOpenOutputStreams());
	assertEquals(Integer.MAX_VALUE, limitedFs.getMaxNumOpenInputStreams());

	assertTrue(limitedFs.getStreamOpenTimeout() > 0);
	assertTrue(limitedFs.getStreamInactivityTimeout() > 0);
}
Example 6
Source File: LimitedConnectionsFileSystemTest.java    From Flink-CEPplus with Apache License 2.0 5 votes vote down vote up 
@Test
public void testOpenTimeoutOutputStreams() throws Exception {
	final long openTimeout = 50L;
	final int maxConcurrentOpen = 2;

	final LimitedConnectionsFileSystem limitedFs = new LimitedConnectionsFileSystem(
			LocalFileSystem.getSharedInstance(),
			maxConcurrentOpen, // limited total
			openTimeout,       // small opening timeout
			0L);               // infinite inactivity timeout

	// create the threads that block all streams
	final BlockingWriterThread[] threads = new BlockingWriterThread[maxConcurrentOpen];
	for (int i = 0; i < maxConcurrentOpen; i++) {
		Path path = new Path(tempFolder.newFile().toURI());
		threads[i] = new BlockingWriterThread(limitedFs, path, Integer.MAX_VALUE, maxConcurrentOpen);
		threads[i].start();
	}

	// wait until all are open
	while (limitedFs.getTotalNumberOfOpenStreams() < maxConcurrentOpen) {
		Thread.sleep(1);
	}

	// try to open another thread
	try {
		limitedFs.create(new Path(tempFolder.newFile().toURI()), WriteMode.OVERWRITE);
		fail("this should have timed out");
	}
	catch (IOException e) {
		// expected
	}

	// clean shutdown
	for (BlockingWriterThread t : threads) {
		t.wakeup();
		t.sync();
	}
}
Example 7
Source File: LimitedConnectionsFileSystemTest.java    From flink with Apache License 2.0 5 votes vote down vote up 
@Test
public void testOpenTimeoutOutputStreams() throws Exception {
	final long openTimeout = 50L;
	final int maxConcurrentOpen = 2;

	final LimitedConnectionsFileSystem limitedFs = new LimitedConnectionsFileSystem(
			LocalFileSystem.getSharedInstance(),
			maxConcurrentOpen, // limited total
			openTimeout,       // small opening timeout
			0L);               // infinite inactivity timeout

	// create the threads that block all streams
	final BlockingWriterThread[] threads = new BlockingWriterThread[maxConcurrentOpen];
	for (int i = 0; i < maxConcurrentOpen; i++) {
		Path path = new Path(tempFolder.newFile().toURI());
		threads[i] = new BlockingWriterThread(limitedFs, path, Integer.MAX_VALUE, maxConcurrentOpen);
		threads[i].start();
	}

	// wait until all are open
	while (limitedFs.getTotalNumberOfOpenStreams() < maxConcurrentOpen) {
		Thread.sleep(1);
	}

	// try to open another thread
	try {
		limitedFs.create(new Path(tempFolder.newFile().toURI()), WriteMode.OVERWRITE);
		fail("this should have timed out");
	}
	catch (IOException e) {
		// expected
	}

	// clean shutdown
	for (BlockingWriterThread t : threads) {
		t.wakeup();
		t.sync();
	}
}
Example 8
Source File: LimitedConnectionsFileSystemTest.java    From flink with Apache License 2.0 5 votes vote down vote up 
@Test
public void testOpenTimeoutOutputStreams() throws Exception {
	final long openTimeout = 50L;
	final int maxConcurrentOpen = 2;

	final LimitedConnectionsFileSystem limitedFs = new LimitedConnectionsFileSystem(
			LocalFileSystem.getSharedInstance(),
			maxConcurrentOpen, // limited total
			openTimeout,       // small opening timeout
			0L);               // infinite inactivity timeout

	// create the threads that block all streams
	final BlockingWriterThread[] threads = new BlockingWriterThread[maxConcurrentOpen];
	for (int i = 0; i < maxConcurrentOpen; i++) {
		Path path = new Path(tempFolder.newFile().toURI());
		threads[i] = new BlockingWriterThread(limitedFs, path, Integer.MAX_VALUE, maxConcurrentOpen);
		threads[i].start();
	}

	// wait until all are open
	while (limitedFs.getTotalNumberOfOpenStreams() < maxConcurrentOpen) {
		Thread.sleep(1);
	}

	// try to open another thread
	try {
		limitedFs.create(new Path(tempFolder.newFile().toURI()), WriteMode.OVERWRITE);
		fail("this should have timed out");
	}
	catch (IOException e) {
		// expected
	}

	// clean shutdown
	for (BlockingWriterThread t : threads) {
		t.wakeup();
		t.sync();
	}
}
Example 9
Source File: PendingCheckpointTest.java    From flink with Apache License 2.0 5 votes vote down vote up 
private PendingCheckpoint createPendingCheckpoint(
		CheckpointProperties props,
		Collection<OperatorID> operatorCoordinators,
		Collection<String> masterStateIdentifiers,
		Executor executor) throws IOException {

	final Path checkpointDir = new Path(tmpFolder.newFolder().toURI());
	final FsCheckpointStorageLocation location = new FsCheckpointStorageLocation(
			LocalFileSystem.getSharedInstance(),
			checkpointDir, checkpointDir, checkpointDir,
			CheckpointStorageLocationReference.getDefault(),
			1024,
			4096);

	final Map<ExecutionAttemptID, ExecutionVertex> ackTasks = new HashMap<>(ACK_TASKS);

	return new PendingCheckpoint(
		new JobID(),
		0,
		1,
		ackTasks,
		operatorCoordinators,
		masterStateIdentifiers,
		props,
		location,
		executor,
		new CompletableFuture<>());
}
Example 10
Source File: FsCheckpointStorageTest.java    From Flink-CEPplus with Apache License 2.0 4 votes vote down vote up 
@Test
public void testDirectoriesForExclusiveAndSharedState() throws Exception {
	final FileSystem fs = LocalFileSystem.getSharedInstance();
	final Path checkpointDir = randomTempPath();
	final Path sharedStateDir = randomTempPath();

	FsCheckpointStorageLocation storageLocation = new FsCheckpointStorageLocation(
			fs,
			checkpointDir,
			sharedStateDir,
			randomTempPath(),
			CheckpointStorageLocationReference.getDefault(),
			FILE_SIZE_THRESHOLD);

	assertNotEquals(storageLocation.getCheckpointDirectory(), storageLocation.getSharedStateDirectory());

	assertEquals(0, fs.listStatus(storageLocation.getCheckpointDirectory()).length);
	assertEquals(0, fs.listStatus(storageLocation.getSharedStateDirectory()).length);

	// create exclusive state

	CheckpointStateOutputStream exclusiveStream =
			storageLocation.createCheckpointStateOutputStream(CheckpointedStateScope.EXCLUSIVE);

	exclusiveStream.write(42);
	exclusiveStream.flush();
	StreamStateHandle exclusiveHandle = exclusiveStream.closeAndGetHandle();

	assertEquals(1, fs.listStatus(storageLocation.getCheckpointDirectory()).length);
	assertEquals(0, fs.listStatus(storageLocation.getSharedStateDirectory()).length);

	// create shared state

	CheckpointStateOutputStream sharedStream =
			storageLocation.createCheckpointStateOutputStream(CheckpointedStateScope.SHARED);

	sharedStream.write(42);
	sharedStream.flush();
	StreamStateHandle sharedHandle = sharedStream.closeAndGetHandle();

	assertEquals(1, fs.listStatus(storageLocation.getCheckpointDirectory()).length);
	assertEquals(1, fs.listStatus(storageLocation.getSharedStateDirectory()).length);

	// drop state

	exclusiveHandle.discardState();
	sharedHandle.discardState();
}
Example 11
Source File: FsCheckpointStorageTest.java    From flink with Apache License 2.0 4 votes vote down vote up 
@Test
public void testDirectoriesForExclusiveAndSharedState() throws Exception {
	final FileSystem fs = LocalFileSystem.getSharedInstance();
	final Path checkpointDir = randomTempPath();
	final Path sharedStateDir = randomTempPath();

	FsCheckpointStorageLocation storageLocation = new FsCheckpointStorageLocation(
			fs,
			checkpointDir,
			sharedStateDir,
			randomTempPath(),
			CheckpointStorageLocationReference.getDefault(),
			FILE_SIZE_THRESHOLD,
			WRITE_BUFFER_SIZE);

	assertNotEquals(storageLocation.getCheckpointDirectory(), storageLocation.getSharedStateDirectory());

	assertEquals(0, fs.listStatus(storageLocation.getCheckpointDirectory()).length);
	assertEquals(0, fs.listStatus(storageLocation.getSharedStateDirectory()).length);

	// create exclusive state

	CheckpointStateOutputStream exclusiveStream =
			storageLocation.createCheckpointStateOutputStream(CheckpointedStateScope.EXCLUSIVE);

	exclusiveStream.write(42);
	exclusiveStream.flush();
	StreamStateHandle exclusiveHandle = exclusiveStream.closeAndGetHandle();

	assertEquals(1, fs.listStatus(storageLocation.getCheckpointDirectory()).length);
	assertEquals(0, fs.listStatus(storageLocation.getSharedStateDirectory()).length);

	// create shared state

	CheckpointStateOutputStream sharedStream =
			storageLocation.createCheckpointStateOutputStream(CheckpointedStateScope.SHARED);

	sharedStream.write(42);
	sharedStream.flush();
	StreamStateHandle sharedHandle = sharedStream.closeAndGetHandle();

	assertEquals(1, fs.listStatus(storageLocation.getCheckpointDirectory()).length);
	assertEquals(1, fs.listStatus(storageLocation.getSharedStateDirectory()).length);

	// drop state

	exclusiveHandle.discardState();
	sharedHandle.discardState();
}
Example 12
Source File: FsCheckpointStorageTest.java    From flink with Apache License 2.0 4 votes vote down vote up 
@Test
public void testDirectoriesForExclusiveAndSharedState() throws Exception {
	final FileSystem fs = LocalFileSystem.getSharedInstance();
	final Path checkpointDir = randomTempPath();
	final Path sharedStateDir = randomTempPath();

	FsCheckpointStorageLocation storageLocation = new FsCheckpointStorageLocation(
			fs,
			checkpointDir,
			sharedStateDir,
			randomTempPath(),
			CheckpointStorageLocationReference.getDefault(),
			FILE_SIZE_THRESHOLD,
			WRITE_BUFFER_SIZE);

	assertNotEquals(storageLocation.getCheckpointDirectory(), storageLocation.getSharedStateDirectory());

	assertEquals(0, fs.listStatus(storageLocation.getCheckpointDirectory()).length);
	assertEquals(0, fs.listStatus(storageLocation.getSharedStateDirectory()).length);

	// create exclusive state

	FsCheckpointStateOutputStream exclusiveStream =
			storageLocation.createCheckpointStateOutputStream(CheckpointedStateScope.EXCLUSIVE);

	exclusiveStream.write(42);
	exclusiveStream.flushToFile();
	StreamStateHandle exclusiveHandle = exclusiveStream.closeAndGetHandle();

	assertEquals(1, fs.listStatus(storageLocation.getCheckpointDirectory()).length);
	assertEquals(0, fs.listStatus(storageLocation.getSharedStateDirectory()).length);

	// create shared state

	FsCheckpointStateOutputStream sharedStream =
			storageLocation.createCheckpointStateOutputStream(CheckpointedStateScope.SHARED);

	sharedStream.write(42);
	sharedStream.flushToFile();
	StreamStateHandle sharedHandle = sharedStream.closeAndGetHandle();

	assertEquals(1, fs.listStatus(storageLocation.getCheckpointDirectory()).length);
	assertEquals(1, fs.listStatus(storageLocation.getSharedStateDirectory()).length);

	// drop state

	exclusiveHandle.discardState();
	sharedHandle.discardState();
}