Java Code Examples for org.apache.flink.runtime.state.AbstractKeyedStateBackend#setCurrentKey()

The following examples show how to use org.apache.flink.runtime.state.AbstractKeyedStateBackend#setCurrentKey() . 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: RocksDBStateBackendTest.java    From Flink-CEPplus with Apache License 2.0 5 votes vote down vote up 
@Test
public void testDisposeDeletesAllDirectories() throws Exception {
	AbstractKeyedStateBackend<Integer> backend = createKeyedBackend(IntSerializer.INSTANCE);
	Collection<File> allFilesInDbDir =
		FileUtils.listFilesAndDirs(new File(dbPath), new AcceptAllFilter(), new AcceptAllFilter());
	try {
		ValueStateDescriptor<String> kvId =
			new ValueStateDescriptor<>("id", String.class, null);

		kvId.initializeSerializerUnlessSet(new ExecutionConfig());

		ValueState<String> state =
			backend.getPartitionedState(VoidNamespace.INSTANCE, VoidNamespaceSerializer.INSTANCE, kvId);

		backend.setCurrentKey(1);
		state.update("Hello");

		// more than just the root directory
		assertTrue(allFilesInDbDir.size() > 1);
	} finally {
		IOUtils.closeQuietly(backend);
		backend.dispose();
	}
	allFilesInDbDir =
		FileUtils.listFilesAndDirs(new File(dbPath), new AcceptAllFilter(), new AcceptAllFilter());

	// just the root directory left
	assertEquals(1, allFilesInDbDir.size());
}
Example 2
Source File: AbstractStreamOperator.java    From Flink-CEPplus with Apache License 2.0 5 votes vote down vote up 
@SuppressWarnings({"unchecked", "rawtypes"})
public void setCurrentKey(Object key) {
	if (keyedStateBackend != null) {
		try {
			// need to work around type restrictions
			@SuppressWarnings("unchecked,rawtypes")
			AbstractKeyedStateBackend rawBackend = (AbstractKeyedStateBackend) keyedStateBackend;

			rawBackend.setCurrentKey(key);
		} catch (Exception e) {
			throw new RuntimeException("Exception occurred while setting the current key context.", e);
		}
	}
}
Example 3
Source File: StreamOperatorStateHandler.java    From flink with Apache License 2.0 5 votes vote down vote up 
@SuppressWarnings({"unchecked", "rawtypes"})
public void setCurrentKey(Object key) {
	if (keyedStateBackend != null) {
		try {
			// need to work around type restrictions
			@SuppressWarnings("unchecked,rawtypes")
			AbstractKeyedStateBackend rawBackend = (AbstractKeyedStateBackend) keyedStateBackend;

			rawBackend.setCurrentKey(key);
		} catch (Exception e) {
			throw new RuntimeException("Exception occurred while setting the current key context.", e);
		}
	}
}
Example 4
Source File: MultiStateKeyIteratorTest.java    From flink with Apache License 2.0 5 votes vote down vote up 
private static void setKey(
	AbstractKeyedStateBackend<Integer> backend,
	ValueStateDescriptor<Integer> descriptor,
	int key) throws Exception {
	backend.setCurrentKey(key);
	backend
		.getPartitionedState(VoidNamespace.INSTANCE, VoidNamespaceSerializer.INSTANCE, descriptor)
		.update(0);
}
Example 5
Source File: RocksDBStateBackendTest.java    From flink with Apache License 2.0 5 votes vote down vote up 
@Test
public void testDisposeDeletesAllDirectories() throws Exception {
	AbstractKeyedStateBackend<Integer> backend = createKeyedBackend(IntSerializer.INSTANCE);
	Collection<File> allFilesInDbDir =
		FileUtils.listFilesAndDirs(new File(dbPath), new AcceptAllFilter(), new AcceptAllFilter());
	try {
		ValueStateDescriptor<String> kvId =
			new ValueStateDescriptor<>("id", String.class, null);

		kvId.initializeSerializerUnlessSet(new ExecutionConfig());

		ValueState<String> state =
			backend.getPartitionedState(VoidNamespace.INSTANCE, VoidNamespaceSerializer.INSTANCE, kvId);

		backend.setCurrentKey(1);
		state.update("Hello");

		// more than just the root directory
		assertTrue(allFilesInDbDir.size() > 1);
	} finally {
		IOUtils.closeQuietly(backend);
		backend.dispose();
	}
	allFilesInDbDir =
		FileUtils.listFilesAndDirs(new File(dbPath), new AcceptAllFilter(), new AcceptAllFilter());

	// just the root directory left
	assertEquals(1, allFilesInDbDir.size());
}
Example 6
Source File: AbstractStreamOperator.java    From flink with Apache License 2.0 5 votes vote down vote up 
@SuppressWarnings({"unchecked", "rawtypes"})
public void setCurrentKey(Object key) {
	if (keyedStateBackend != null) {
		try {
			// need to work around type restrictions
			@SuppressWarnings("unchecked,rawtypes")
			AbstractKeyedStateBackend rawBackend = (AbstractKeyedStateBackend) keyedStateBackend;

			rawBackend.setCurrentKey(key);
		} catch (Exception e) {
			throw new RuntimeException("Exception occurred while setting the current key context.", e);
		}
	}
}
Example 7
Source File: RocksDBStateBackendTest.java    From flink with Apache License 2.0 5 votes vote down vote up 
@Test
public void testDisposeDeletesAllDirectories() throws Exception {
	AbstractKeyedStateBackend<Integer> backend = createKeyedBackend(IntSerializer.INSTANCE);
	Collection<File> allFilesInDbDir =
		FileUtils.listFilesAndDirs(new File(dbPath), new AcceptAllFilter(), new AcceptAllFilter());
	try {
		ValueStateDescriptor<String> kvId =
			new ValueStateDescriptor<>("id", String.class, null);

		kvId.initializeSerializerUnlessSet(new ExecutionConfig());

		ValueState<String> state =
			backend.getPartitionedState(VoidNamespace.INSTANCE, VoidNamespaceSerializer.INSTANCE, kvId);

		backend.setCurrentKey(1);
		state.update("Hello");

		// more than just the root directory
		assertTrue(allFilesInDbDir.size() > 1);
	} finally {
		IOUtils.closeQuietly(backend);
		backend.dispose();
	}
	allFilesInDbDir =
		FileUtils.listFilesAndDirs(new File(dbPath), new AcceptAllFilter(), new AcceptAllFilter());

	// just the root directory left
	assertEquals(1, allFilesInDbDir.size());
}
Example 8
Source File: MultiStateKeyIteratorTest.java    From flink with Apache License 2.0 5 votes vote down vote up 
private static void setKey(
	AbstractKeyedStateBackend<Integer> backend,
	ValueStateDescriptor<Integer> descriptor,
	int key) throws Exception {
	backend.setCurrentKey(key);
	backend
		.getPartitionedState(VoidNamespace.INSTANCE, VoidNamespaceSerializer.INSTANCE, descriptor)
		.update(0);
}
Example 9
Source File: KvStateServerHandlerTest.java    From flink with Apache License 2.0 4 votes vote down vote up 
/**
 * Tests that large responses are chunked.
 */
@Test
public void testChunkedResponse() throws Exception {
	KvStateRegistry registry = new KvStateRegistry();
	KvStateRequestStats stats = new AtomicKvStateRequestStats();

	MessageSerializer<KvStateInternalRequest, KvStateResponse> serializer =
			new MessageSerializer<>(new KvStateInternalRequest.KvStateInternalRequestDeserializer(), new KvStateResponse.KvStateResponseDeserializer());

	KvStateServerHandler handler = new KvStateServerHandler(testServer, registry, serializer, stats);
	EmbeddedChannel channel = new EmbeddedChannel(getFrameDecoder(), handler);

	int numKeyGroups = 1;
	AbstractStateBackend abstractBackend = new MemoryStateBackend();
	DummyEnvironment dummyEnv = new DummyEnvironment("test", 1, 0);
	dummyEnv.setKvStateRegistry(registry);
	AbstractKeyedStateBackend<Integer> backend = createKeyedStateBackend(registry, numKeyGroups, abstractBackend, dummyEnv);

	final TestRegistryListener registryListener = new TestRegistryListener();
	registry.registerListener(dummyEnv.getJobID(), registryListener);

	// Register state
	ValueStateDescriptor<byte[]> desc = new ValueStateDescriptor<>("any", BytePrimitiveArraySerializer.INSTANCE);
	desc.setQueryable("vanilla");

	ValueState<byte[]> state = backend.getPartitionedState(
			VoidNamespace.INSTANCE,
			VoidNamespaceSerializer.INSTANCE,
			desc);

	// Update KvState
	byte[] bytes = new byte[2 * channel.config().getWriteBufferHighWaterMark()];

	byte current = 0;
	for (int i = 0; i < bytes.length; i++) {
		bytes[i] = current++;
	}

	int key = 99812822;
	backend.setCurrentKey(key);
	state.update(bytes);

	// Request
	byte[] serializedKeyAndNamespace = KvStateSerializer.serializeKeyAndNamespace(
			key,
			IntSerializer.INSTANCE,
			VoidNamespace.INSTANCE,
			VoidNamespaceSerializer.INSTANCE);

	long requestId = Integer.MAX_VALUE + 182828L;

	assertTrue(registryListener.registrationName.equals("vanilla"));

	KvStateInternalRequest request = new KvStateInternalRequest(registryListener.kvStateId, serializedKeyAndNamespace);
	ByteBuf serRequest = MessageSerializer.serializeRequest(channel.alloc(), requestId, request);

	// Write the request and wait for the response
	channel.writeInbound(serRequest);

	Object msg = readInboundBlocking(channel);
	assertTrue("Not ChunkedByteBuf", msg instanceof ChunkedByteBuf);
	((ChunkedByteBuf) msg).close();
}
Example 10
Source File: KvStateServerHandlerTest.java    From flink with Apache License 2.0 4 votes vote down vote up 
/**
 * Tests a simple successful query via an EmbeddedChannel.
 */
@Test
public void testSimpleQuery() throws Exception {
	KvStateRegistry registry = new KvStateRegistry();
	AtomicKvStateRequestStats stats = new AtomicKvStateRequestStats();

	MessageSerializer<KvStateInternalRequest, KvStateResponse> serializer =
			new MessageSerializer<>(new KvStateInternalRequest.KvStateInternalRequestDeserializer(), new KvStateResponse.KvStateResponseDeserializer());

	KvStateServerHandler handler = new KvStateServerHandler(testServer, registry, serializer, stats);
	EmbeddedChannel channel = new EmbeddedChannel(getFrameDecoder(), handler);

	// Register state
	ValueStateDescriptor<Integer> desc = new ValueStateDescriptor<>("any", IntSerializer.INSTANCE);
	desc.setQueryable("vanilla");

	int numKeyGroups = 1;
	AbstractStateBackend abstractBackend = new MemoryStateBackend();
	DummyEnvironment dummyEnv = new DummyEnvironment("test", 1, 0);
	dummyEnv.setKvStateRegistry(registry);
	AbstractKeyedStateBackend<Integer> backend = createKeyedStateBackend(registry, numKeyGroups, abstractBackend, dummyEnv);

	final TestRegistryListener registryListener = new TestRegistryListener();
	registry.registerListener(dummyEnv.getJobID(), registryListener);

	// Update the KvState and request it
	int expectedValue = 712828289;

	int key = 99812822;
	backend.setCurrentKey(key);
	ValueState<Integer> state = backend.getPartitionedState(
			VoidNamespace.INSTANCE,
			VoidNamespaceSerializer.INSTANCE,
			desc);

	state.update(expectedValue);

	byte[] serializedKeyAndNamespace = KvStateSerializer.serializeKeyAndNamespace(
			key,
			IntSerializer.INSTANCE,
			VoidNamespace.INSTANCE,
			VoidNamespaceSerializer.INSTANCE);

	long requestId = Integer.MAX_VALUE + 182828L;

	assertTrue(registryListener.registrationName.equals("vanilla"));

	KvStateInternalRequest request = new KvStateInternalRequest(
			registryListener.kvStateId, serializedKeyAndNamespace);

	ByteBuf serRequest = MessageSerializer.serializeRequest(channel.alloc(), requestId, request);

	// Write the request and wait for the response
	channel.writeInbound(serRequest);

	ByteBuf buf = (ByteBuf) readInboundBlocking(channel);
	buf.skipBytes(4); // skip frame length

	// Verify the response
	assertEquals(MessageType.REQUEST_RESULT, MessageSerializer.deserializeHeader(buf));
	long deserRequestId = MessageSerializer.getRequestId(buf);
	KvStateResponse response = serializer.deserializeResponse(buf);
	buf.release();

	assertEquals(requestId, deserRequestId);

	int actualValue = KvStateSerializer.deserializeValue(response.getContent(), IntSerializer.INSTANCE);
	assertEquals(expectedValue, actualValue);

	assertEquals(stats.toString(), 1, stats.getNumRequests());

	// Wait for async successful request report
	long deadline = System.nanoTime() + TimeUnit.NANOSECONDS.convert(30, TimeUnit.SECONDS);
	while (stats.getNumSuccessful() != 1L && System.nanoTime() <= deadline) {
		Thread.sleep(10L);
	}

	assertEquals(stats.toString(), 1L, stats.getNumSuccessful());
}
Example 11
Source File: RocksDBStateBackendTest.java    From flink with Apache License 2.0 4 votes vote down vote up 
@Test
public void testSharedIncrementalStateDeRegistration() throws Exception {
	if (enableIncrementalCheckpointing) {
		AbstractKeyedStateBackend<Integer> backend = createKeyedBackend(IntSerializer.INSTANCE);
		try {
			ValueStateDescriptor<String> kvId =
				new ValueStateDescriptor<>("id", String.class, null);

			kvId.initializeSerializerUnlessSet(new ExecutionConfig());

			ValueState<String> state =
				backend.getPartitionedState(VoidNamespace.INSTANCE, VoidNamespaceSerializer.INSTANCE, kvId);

			Queue<IncrementalRemoteKeyedStateHandle> previousStateHandles = new LinkedList<>();
			SharedStateRegistry sharedStateRegistry = spy(new SharedStateRegistry());
			for (int checkpointId = 0; checkpointId < 3; ++checkpointId) {

				reset(sharedStateRegistry);

				backend.setCurrentKey(checkpointId);
				state.update("Hello-" + checkpointId);

				RunnableFuture<SnapshotResult<KeyedStateHandle>> snapshot = backend.snapshot(
					checkpointId,
					checkpointId,
					createStreamFactory(),
					CheckpointOptions.forCheckpointWithDefaultLocation());

				snapshot.run();

				SnapshotResult<KeyedStateHandle> snapshotResult = snapshot.get();

				IncrementalRemoteKeyedStateHandle stateHandle =
					(IncrementalRemoteKeyedStateHandle) snapshotResult.getJobManagerOwnedSnapshot();

				Map<StateHandleID, StreamStateHandle> sharedState =
					new HashMap<>(stateHandle.getSharedState());

				stateHandle.registerSharedStates(sharedStateRegistry);

				for (Map.Entry<StateHandleID, StreamStateHandle> e : sharedState.entrySet()) {
					verify(sharedStateRegistry).registerReference(
						stateHandle.createSharedStateRegistryKeyFromFileName(e.getKey()),
						e.getValue());
				}

				previousStateHandles.add(stateHandle);
				backend.notifyCheckpointComplete(checkpointId);

				//-----------------------------------------------------------------

				if (previousStateHandles.size() > 1) {
					checkRemove(previousStateHandles.remove(), sharedStateRegistry);
				}
			}

			while (!previousStateHandles.isEmpty()) {

				reset(sharedStateRegistry);

				checkRemove(previousStateHandles.remove(), sharedStateRegistry);
			}
		} finally {
			IOUtils.closeQuietly(backend);
			backend.dispose();
		}
	}
}
Example 12
Source File: KvStateServerHandlerTest.java    From flink with Apache License 2.0 4 votes vote down vote up 
/**
 * Tests that large responses are chunked.
 */
@Test
public void testChunkedResponse() throws Exception {
	KvStateRegistry registry = new KvStateRegistry();
	KvStateRequestStats stats = new AtomicKvStateRequestStats();

	MessageSerializer<KvStateInternalRequest, KvStateResponse> serializer =
			new MessageSerializer<>(new KvStateInternalRequest.KvStateInternalRequestDeserializer(), new KvStateResponse.KvStateResponseDeserializer());

	KvStateServerHandler handler = new KvStateServerHandler(testServer, registry, serializer, stats);
	EmbeddedChannel channel = new EmbeddedChannel(getFrameDecoder(), handler);

	int numKeyGroups = 1;
	AbstractStateBackend abstractBackend = new MemoryStateBackend();
	DummyEnvironment dummyEnv = new DummyEnvironment("test", 1, 0);
	dummyEnv.setKvStateRegistry(registry);
	AbstractKeyedStateBackend<Integer> backend = createKeyedStateBackend(registry, numKeyGroups, abstractBackend, dummyEnv);

	final TestRegistryListener registryListener = new TestRegistryListener();
	registry.registerListener(dummyEnv.getJobID(), registryListener);

	// Register state
	ValueStateDescriptor<byte[]> desc = new ValueStateDescriptor<>("any", BytePrimitiveArraySerializer.INSTANCE);
	desc.setQueryable("vanilla");

	ValueState<byte[]> state = backend.getPartitionedState(
			VoidNamespace.INSTANCE,
			VoidNamespaceSerializer.INSTANCE,
			desc);

	// Update KvState
	byte[] bytes = new byte[2 * channel.config().getWriteBufferHighWaterMark()];

	byte current = 0;
	for (int i = 0; i < bytes.length; i++) {
		bytes[i] = current++;
	}

	int key = 99812822;
	backend.setCurrentKey(key);
	state.update(bytes);

	// Request
	byte[] serializedKeyAndNamespace = KvStateSerializer.serializeKeyAndNamespace(
			key,
			IntSerializer.INSTANCE,
			VoidNamespace.INSTANCE,
			VoidNamespaceSerializer.INSTANCE);

	long requestId = Integer.MAX_VALUE + 182828L;

	assertTrue(registryListener.registrationName.equals("vanilla"));

	KvStateInternalRequest request = new KvStateInternalRequest(registryListener.kvStateId, serializedKeyAndNamespace);
	ByteBuf serRequest = MessageSerializer.serializeRequest(channel.alloc(), requestId, request);

	// Write the request and wait for the response
	channel.writeInbound(serRequest);

	Object msg = readInboundBlocking(channel);
	assertTrue("Not ChunkedByteBuf", msg instanceof ChunkedByteBuf);
}
Example 13
Source File: KvStateServerHandlerTest.java    From flink with Apache License 2.0 4 votes vote down vote up 
/**
 * Tests a simple successful query via an EmbeddedChannel.
 */
@Test
public void testSimpleQuery() throws Exception {
	KvStateRegistry registry = new KvStateRegistry();
	AtomicKvStateRequestStats stats = new AtomicKvStateRequestStats();

	MessageSerializer<KvStateInternalRequest, KvStateResponse> serializer =
			new MessageSerializer<>(new KvStateInternalRequest.KvStateInternalRequestDeserializer(), new KvStateResponse.KvStateResponseDeserializer());

	KvStateServerHandler handler = new KvStateServerHandler(testServer, registry, serializer, stats);
	EmbeddedChannel channel = new EmbeddedChannel(getFrameDecoder(), handler);

	// Register state
	ValueStateDescriptor<Integer> desc = new ValueStateDescriptor<>("any", IntSerializer.INSTANCE);
	desc.setQueryable("vanilla");

	int numKeyGroups = 1;
	AbstractStateBackend abstractBackend = new MemoryStateBackend();
	DummyEnvironment dummyEnv = new DummyEnvironment("test", 1, 0);
	dummyEnv.setKvStateRegistry(registry);
	AbstractKeyedStateBackend<Integer> backend = createKeyedStateBackend(registry, numKeyGroups, abstractBackend, dummyEnv);

	final TestRegistryListener registryListener = new TestRegistryListener();
	registry.registerListener(dummyEnv.getJobID(), registryListener);

	// Update the KvState and request it
	int expectedValue = 712828289;

	int key = 99812822;
	backend.setCurrentKey(key);
	ValueState<Integer> state = backend.getPartitionedState(
			VoidNamespace.INSTANCE,
			VoidNamespaceSerializer.INSTANCE,
			desc);

	state.update(expectedValue);

	byte[] serializedKeyAndNamespace = KvStateSerializer.serializeKeyAndNamespace(
			key,
			IntSerializer.INSTANCE,
			VoidNamespace.INSTANCE,
			VoidNamespaceSerializer.INSTANCE);

	long requestId = Integer.MAX_VALUE + 182828L;

	assertTrue(registryListener.registrationName.equals("vanilla"));

	KvStateInternalRequest request = new KvStateInternalRequest(
			registryListener.kvStateId, serializedKeyAndNamespace);

	ByteBuf serRequest = MessageSerializer.serializeRequest(channel.alloc(), requestId, request);

	// Write the request and wait for the response
	channel.writeInbound(serRequest);

	ByteBuf buf = (ByteBuf) readInboundBlocking(channel);
	buf.skipBytes(4); // skip frame length

	// Verify the response
	assertEquals(MessageType.REQUEST_RESULT, MessageSerializer.deserializeHeader(buf));
	long deserRequestId = MessageSerializer.getRequestId(buf);
	KvStateResponse response = serializer.deserializeResponse(buf);

	assertEquals(requestId, deserRequestId);

	int actualValue = KvStateSerializer.deserializeValue(response.getContent(), IntSerializer.INSTANCE);
	assertEquals(expectedValue, actualValue);

	assertEquals(stats.toString(), 1, stats.getNumRequests());

	// Wait for async successful request report
	long deadline = System.nanoTime() + TimeUnit.NANOSECONDS.convert(30, TimeUnit.SECONDS);
	while (stats.getNumSuccessful() != 1L && System.nanoTime() <= deadline) {
		Thread.sleep(10L);
	}

	assertEquals(stats.toString(), 1L, stats.getNumSuccessful());
}
Example 14
Source File: RocksDBStateBackendTest.java    From flink with Apache License 2.0 4 votes vote down vote up 
@Test
public void testSharedIncrementalStateDeRegistration() throws Exception {
	if (enableIncrementalCheckpointing) {
		AbstractKeyedStateBackend<Integer> backend = createKeyedBackend(IntSerializer.INSTANCE);
		try {
			ValueStateDescriptor<String> kvId =
				new ValueStateDescriptor<>("id", String.class, null);

			kvId.initializeSerializerUnlessSet(new ExecutionConfig());

			ValueState<String> state =
				backend.getPartitionedState(VoidNamespace.INSTANCE, VoidNamespaceSerializer.INSTANCE, kvId);

			Queue<IncrementalRemoteKeyedStateHandle> previousStateHandles = new LinkedList<>();
			SharedStateRegistry sharedStateRegistry = spy(new SharedStateRegistry());
			for (int checkpointId = 0; checkpointId < 3; ++checkpointId) {

				reset(sharedStateRegistry);

				backend.setCurrentKey(checkpointId);
				state.update("Hello-" + checkpointId);

				RunnableFuture<SnapshotResult<KeyedStateHandle>> snapshot = backend.snapshot(
					checkpointId,
					checkpointId,
					createStreamFactory(),
					CheckpointOptions.forCheckpointWithDefaultLocation());

				snapshot.run();

				SnapshotResult<KeyedStateHandle> snapshotResult = snapshot.get();

				IncrementalRemoteKeyedStateHandle stateHandle =
					(IncrementalRemoteKeyedStateHandle) snapshotResult.getJobManagerOwnedSnapshot();

				Map<StateHandleID, StreamStateHandle> sharedState =
					new HashMap<>(stateHandle.getSharedState());

				stateHandle.registerSharedStates(sharedStateRegistry);

				for (Map.Entry<StateHandleID, StreamStateHandle> e : sharedState.entrySet()) {
					verify(sharedStateRegistry).registerReference(
						stateHandle.createSharedStateRegistryKeyFromFileName(e.getKey()),
						e.getValue());
				}

				previousStateHandles.add(stateHandle);
				backend.notifyCheckpointComplete(checkpointId);

				//-----------------------------------------------------------------

				if (previousStateHandles.size() > 1) {
					checkRemove(previousStateHandles.remove(), sharedStateRegistry);
				}
			}

			while (!previousStateHandles.isEmpty()) {

				reset(sharedStateRegistry);

				checkRemove(previousStateHandles.remove(), sharedStateRegistry);
			}
		} finally {
			IOUtils.closeQuietly(backend);
			backend.dispose();
		}
	}
}
Example 15
Source File: KvStateServerHandlerTest.java    From Flink-CEPplus with Apache License 2.0 4 votes vote down vote up 
/**
 * Tests that large responses are chunked.
 */
@Test
public void testChunkedResponse() throws Exception {
	KvStateRegistry registry = new KvStateRegistry();
	KvStateRequestStats stats = new AtomicKvStateRequestStats();

	MessageSerializer<KvStateInternalRequest, KvStateResponse> serializer =
			new MessageSerializer<>(new KvStateInternalRequest.KvStateInternalRequestDeserializer(), new KvStateResponse.KvStateResponseDeserializer());

	KvStateServerHandler handler = new KvStateServerHandler(testServer, registry, serializer, stats);
	EmbeddedChannel channel = new EmbeddedChannel(getFrameDecoder(), handler);

	int numKeyGroups = 1;
	AbstractStateBackend abstractBackend = new MemoryStateBackend();
	DummyEnvironment dummyEnv = new DummyEnvironment("test", 1, 0);
	dummyEnv.setKvStateRegistry(registry);
	AbstractKeyedStateBackend<Integer> backend = createKeyedStateBackend(registry, numKeyGroups, abstractBackend, dummyEnv);

	final TestRegistryListener registryListener = new TestRegistryListener();
	registry.registerListener(dummyEnv.getJobID(), registryListener);

	// Register state
	ValueStateDescriptor<byte[]> desc = new ValueStateDescriptor<>("any", BytePrimitiveArraySerializer.INSTANCE);
	desc.setQueryable("vanilla");

	ValueState<byte[]> state = backend.getPartitionedState(
			VoidNamespace.INSTANCE,
			VoidNamespaceSerializer.INSTANCE,
			desc);

	// Update KvState
	byte[] bytes = new byte[2 * channel.config().getWriteBufferHighWaterMark()];

	byte current = 0;
	for (int i = 0; i < bytes.length; i++) {
		bytes[i] = current++;
	}

	int key = 99812822;
	backend.setCurrentKey(key);
	state.update(bytes);

	// Request
	byte[] serializedKeyAndNamespace = KvStateSerializer.serializeKeyAndNamespace(
			key,
			IntSerializer.INSTANCE,
			VoidNamespace.INSTANCE,
			VoidNamespaceSerializer.INSTANCE);

	long requestId = Integer.MAX_VALUE + 182828L;

	assertTrue(registryListener.registrationName.equals("vanilla"));

	KvStateInternalRequest request = new KvStateInternalRequest(registryListener.kvStateId, serializedKeyAndNamespace);
	ByteBuf serRequest = MessageSerializer.serializeRequest(channel.alloc(), requestId, request);

	// Write the request and wait for the response
	channel.writeInbound(serRequest);

	Object msg = readInboundBlocking(channel);
	assertTrue("Not ChunkedByteBuf", msg instanceof ChunkedByteBuf);
}
Example 16
Source File: KvStateServerHandlerTest.java    From Flink-CEPplus with Apache License 2.0 4 votes vote down vote up 
/**
 * Tests a simple successful query via an EmbeddedChannel.
 */
@Test
public void testSimpleQuery() throws Exception {
	KvStateRegistry registry = new KvStateRegistry();
	AtomicKvStateRequestStats stats = new AtomicKvStateRequestStats();

	MessageSerializer<KvStateInternalRequest, KvStateResponse> serializer =
			new MessageSerializer<>(new KvStateInternalRequest.KvStateInternalRequestDeserializer(), new KvStateResponse.KvStateResponseDeserializer());

	KvStateServerHandler handler = new KvStateServerHandler(testServer, registry, serializer, stats);
	EmbeddedChannel channel = new EmbeddedChannel(getFrameDecoder(), handler);

	// Register state
	ValueStateDescriptor<Integer> desc = new ValueStateDescriptor<>("any", IntSerializer.INSTANCE);
	desc.setQueryable("vanilla");

	int numKeyGroups = 1;
	AbstractStateBackend abstractBackend = new MemoryStateBackend();
	DummyEnvironment dummyEnv = new DummyEnvironment("test", 1, 0);
	dummyEnv.setKvStateRegistry(registry);
	AbstractKeyedStateBackend<Integer> backend = createKeyedStateBackend(registry, numKeyGroups, abstractBackend, dummyEnv);

	final TestRegistryListener registryListener = new TestRegistryListener();
	registry.registerListener(dummyEnv.getJobID(), registryListener);

	// Update the KvState and request it
	int expectedValue = 712828289;

	int key = 99812822;
	backend.setCurrentKey(key);
	ValueState<Integer> state = backend.getPartitionedState(
			VoidNamespace.INSTANCE,
			VoidNamespaceSerializer.INSTANCE,
			desc);

	state.update(expectedValue);

	byte[] serializedKeyAndNamespace = KvStateSerializer.serializeKeyAndNamespace(
			key,
			IntSerializer.INSTANCE,
			VoidNamespace.INSTANCE,
			VoidNamespaceSerializer.INSTANCE);

	long requestId = Integer.MAX_VALUE + 182828L;

	assertTrue(registryListener.registrationName.equals("vanilla"));

	KvStateInternalRequest request = new KvStateInternalRequest(
			registryListener.kvStateId, serializedKeyAndNamespace);

	ByteBuf serRequest = MessageSerializer.serializeRequest(channel.alloc(), requestId, request);

	// Write the request and wait for the response
	channel.writeInbound(serRequest);

	ByteBuf buf = (ByteBuf) readInboundBlocking(channel);
	buf.skipBytes(4); // skip frame length

	// Verify the response
	assertEquals(MessageType.REQUEST_RESULT, MessageSerializer.deserializeHeader(buf));
	long deserRequestId = MessageSerializer.getRequestId(buf);
	KvStateResponse response = serializer.deserializeResponse(buf);

	assertEquals(requestId, deserRequestId);

	int actualValue = KvStateSerializer.deserializeValue(response.getContent(), IntSerializer.INSTANCE);
	assertEquals(expectedValue, actualValue);

	assertEquals(stats.toString(), 1, stats.getNumRequests());

	// Wait for async successful request report
	long deadline = System.nanoTime() + TimeUnit.NANOSECONDS.convert(30, TimeUnit.SECONDS);
	while (stats.getNumSuccessful() != 1L && System.nanoTime() <= deadline) {
		Thread.sleep(10L);
	}

	assertEquals(stats.toString(), 1L, stats.getNumSuccessful());
}
Example 17
Source File: RocksDBStateBackendTest.java    From Flink-CEPplus with Apache License 2.0 4 votes vote down vote up 
@Test
public void testSharedIncrementalStateDeRegistration() throws Exception {
	if (enableIncrementalCheckpointing) {
		AbstractKeyedStateBackend<Integer> backend = createKeyedBackend(IntSerializer.INSTANCE);
		try {
			ValueStateDescriptor<String> kvId =
				new ValueStateDescriptor<>("id", String.class, null);

			kvId.initializeSerializerUnlessSet(new ExecutionConfig());

			ValueState<String> state =
				backend.getPartitionedState(VoidNamespace.INSTANCE, VoidNamespaceSerializer.INSTANCE, kvId);

			Queue<IncrementalRemoteKeyedStateHandle> previousStateHandles = new LinkedList<>();
			SharedStateRegistry sharedStateRegistry = spy(new SharedStateRegistry());
			for (int checkpointId = 0; checkpointId < 3; ++checkpointId) {

				reset(sharedStateRegistry);

				backend.setCurrentKey(checkpointId);
				state.update("Hello-" + checkpointId);

				RunnableFuture<SnapshotResult<KeyedStateHandle>> snapshot = backend.snapshot(
					checkpointId,
					checkpointId,
					createStreamFactory(),
					CheckpointOptions.forCheckpointWithDefaultLocation());

				snapshot.run();

				SnapshotResult<KeyedStateHandle> snapshotResult = snapshot.get();

				IncrementalRemoteKeyedStateHandle stateHandle =
					(IncrementalRemoteKeyedStateHandle) snapshotResult.getJobManagerOwnedSnapshot();

				Map<StateHandleID, StreamStateHandle> sharedState =
					new HashMap<>(stateHandle.getSharedState());

				stateHandle.registerSharedStates(sharedStateRegistry);

				for (Map.Entry<StateHandleID, StreamStateHandle> e : sharedState.entrySet()) {
					verify(sharedStateRegistry).registerReference(
						stateHandle.createSharedStateRegistryKeyFromFileName(e.getKey()),
						e.getValue());
				}

				previousStateHandles.add(stateHandle);
				backend.notifyCheckpointComplete(checkpointId);

				//-----------------------------------------------------------------

				if (previousStateHandles.size() > 1) {
					checkRemove(previousStateHandles.remove(), sharedStateRegistry);
				}
			}

			while (!previousStateHandles.isEmpty()) {

				reset(sharedStateRegistry);

				checkRemove(previousStateHandles.remove(), sharedStateRegistry);
			}
		} finally {
			IOUtils.closeQuietly(backend);
			backend.dispose();
		}
	}
}