Java Code Examples for org.apache.flink.queryablestate.network.messages.MessageSerializer#deserializeRequestFailure()

The following examples show how to use org.apache.flink.queryablestate.network.messages.MessageSerializer#deserializeRequestFailure() . 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: MessageSerializerTest.java From Flink-CEPplus with Apache License 2.0

6 votes

/**
 * Tests request failure serialization.
 */
@Test
public void testKvStateRequestFailureSerialization() throws Exception {
	long requestId = Integer.MAX_VALUE + 1111222L;
	IllegalStateException cause = new IllegalStateException("Expected test");

	ByteBuf buf = MessageSerializer.serializeRequestFailure(alloc, requestId, cause);

	int frameLength = buf.readInt();
	assertEquals(MessageType.REQUEST_FAILURE, MessageSerializer.deserializeHeader(buf));
	RequestFailure requestFailure = MessageSerializer.deserializeRequestFailure(buf);
	assertEquals(buf.readerIndex(), frameLength + 4);

	assertEquals(requestId, requestFailure.getRequestId());
	assertEquals(cause.getClass(), requestFailure.getCause().getClass());
	assertEquals(cause.getMessage(), requestFailure.getCause().getMessage());
}

Example 2

Source File: MessageSerializerTest.java From flink with Apache License 2.0

6 votes

/**
 * Tests request failure serialization.
 */
@Test
public void testKvStateRequestFailureSerialization() throws Exception {
	long requestId = Integer.MAX_VALUE + 1111222L;
	IllegalStateException cause = new IllegalStateException("Expected test");

	ByteBuf buf = MessageSerializer.serializeRequestFailure(alloc, requestId, cause);

	int frameLength = buf.readInt();
	assertEquals(MessageType.REQUEST_FAILURE, MessageSerializer.deserializeHeader(buf));
	RequestFailure requestFailure = MessageSerializer.deserializeRequestFailure(buf);
	assertEquals(buf.readerIndex(), frameLength + 4);

	assertEquals(requestId, requestFailure.getRequestId());
	assertEquals(cause.getClass(), requestFailure.getCause().getClass());
	assertEquals(cause.getMessage(), requestFailure.getCause().getMessage());
}

Example 3

Source File: MessageSerializerTest.java From flink with Apache License 2.0

6 votes

/**
 * Tests request failure serialization.
 */
@Test
public void testKvStateRequestFailureSerialization() throws Exception {
	long requestId = Integer.MAX_VALUE + 1111222L;
	IllegalStateException cause = new IllegalStateException("Expected test");

	ByteBuf buf = MessageSerializer.serializeRequestFailure(alloc, requestId, cause);

	int frameLength = buf.readInt();
	assertEquals(MessageType.REQUEST_FAILURE, MessageSerializer.deserializeHeader(buf));
	RequestFailure requestFailure = MessageSerializer.deserializeRequestFailure(buf);
	assertEquals(buf.readerIndex(), frameLength + 4);

	assertEquals(requestId, requestFailure.getRequestId());
	assertEquals(cause.getClass(), requestFailure.getCause().getClass());
	assertEquals(cause.getMessage(), requestFailure.getCause().getMessage());
}

Example 4

Source File: KvStateServerHandlerTest.java From Flink-CEPplus with Apache License 2.0

5 votes

/**
 * Tests the failure response with {@link UnknownKvStateIdException} as cause on
 * queries for unregistered KvStateIDs.
 */
@Test
public void testQueryUnknownKvStateID() 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);

	long requestId = Integer.MAX_VALUE + 182828L;

	KvStateInternalRequest request = new KvStateInternalRequest(new KvStateID(), new byte[0]);

	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_FAILURE, MessageSerializer.deserializeHeader(buf));
	RequestFailure response = MessageSerializer.deserializeRequestFailure(buf);

	assertEquals(requestId, response.getRequestId());

	assertTrue("Did not respond with expected failure cause", response.getCause() instanceof UnknownKvStateIdException);

	assertEquals(1L, stats.getNumRequests());
	assertEquals(1L, stats.getNumFailed());
}

Example 5

Source File: ClientHandler.java From flink with Apache License 2.0

5 votes

@Override
public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
	try {
		ByteBuf buf = (ByteBuf) msg;
		MessageType msgType = MessageSerializer.deserializeHeader(buf);

		if (msgType == MessageType.REQUEST_RESULT) {
			long requestId = MessageSerializer.getRequestId(buf);
			RESP result = serializer.deserializeResponse(buf);
			callback.onRequestResult(requestId, result);
		} else if (msgType == MessageType.REQUEST_FAILURE) {
			RequestFailure failure = MessageSerializer.deserializeRequestFailure(buf);
			callback.onRequestFailure(failure.getRequestId(), failure.getCause());
		} else if (msgType == MessageType.SERVER_FAILURE) {
			throw MessageSerializer.deserializeServerFailure(buf);
		} else {
			throw new IllegalStateException("Unexpected response type '" + msgType + "'");
		}
	} catch (Throwable t1) {
		try {
			callback.onFailure(t1);
		} catch (Throwable t2) {
			LOG.error("Failed to notify callback about failure", t2);
		}
	} finally {
		ReferenceCountUtil.release(msg);
	}
}

Example 6

Source File: KvStateServerHandlerTest.java From flink with Apache License 2.0

5 votes

/**
 * Tests the failure response with {@link UnknownKvStateIdException} as cause on
 * queries for unregistered KvStateIDs.
 */
@Test
public void testQueryUnknownKvStateID() 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);

	long requestId = Integer.MAX_VALUE + 182828L;

	KvStateInternalRequest request = new KvStateInternalRequest(new KvStateID(), new byte[0]);

	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_FAILURE, MessageSerializer.deserializeHeader(buf));
	RequestFailure response = MessageSerializer.deserializeRequestFailure(buf);
	buf.release();

	assertEquals(requestId, response.getRequestId());

	assertTrue("Did not respond with expected failure cause", response.getCause() instanceof UnknownKvStateIdException);

	assertEquals(1L, stats.getNumRequests());
	assertEquals(1L, stats.getNumFailed());
}

Example 7

Source File: ClientHandler.java From flink with Apache License 2.0

5 votes

@Override
public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
	try {
		ByteBuf buf = (ByteBuf) msg;
		MessageType msgType = MessageSerializer.deserializeHeader(buf);

		if (msgType == MessageType.REQUEST_RESULT) {
			long requestId = MessageSerializer.getRequestId(buf);
			RESP result = serializer.deserializeResponse(buf);
			callback.onRequestResult(requestId, result);
		} else if (msgType == MessageType.REQUEST_FAILURE) {
			RequestFailure failure = MessageSerializer.deserializeRequestFailure(buf);
			callback.onRequestFailure(failure.getRequestId(), failure.getCause());
		} else if (msgType == MessageType.SERVER_FAILURE) {
			throw MessageSerializer.deserializeServerFailure(buf);
		} else {
			throw new IllegalStateException("Unexpected response type '" + msgType + "'");
		}
	} catch (Throwable t1) {
		try {
			callback.onFailure(t1);
		} catch (Throwable t2) {
			LOG.error("Failed to notify callback about failure", t2);
		}
	} finally {
		ReferenceCountUtil.release(msg);
	}
}

Example 8

Source File: KvStateServerHandlerTest.java From flink with Apache License 2.0

5 votes

/**
 * Tests the failure response with {@link UnknownKvStateIdException} as cause on
 * queries for unregistered KvStateIDs.
 */
@Test
public void testQueryUnknownKvStateID() 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);

	long requestId = Integer.MAX_VALUE + 182828L;

	KvStateInternalRequest request = new KvStateInternalRequest(new KvStateID(), new byte[0]);

	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_FAILURE, MessageSerializer.deserializeHeader(buf));
	RequestFailure response = MessageSerializer.deserializeRequestFailure(buf);

	assertEquals(requestId, response.getRequestId());

	assertTrue("Did not respond with expected failure cause", response.getCause() instanceof UnknownKvStateIdException);

	assertEquals(1L, stats.getNumRequests());
	assertEquals(1L, stats.getNumFailed());
}

Example 9

Source File: ClientHandler.java From Flink-CEPplus with Apache License 2.0

5 votes

@Override
public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
	try {
		ByteBuf buf = (ByteBuf) msg;
		MessageType msgType = MessageSerializer.deserializeHeader(buf);

		if (msgType == MessageType.REQUEST_RESULT) {
			long requestId = MessageSerializer.getRequestId(buf);
			RESP result = serializer.deserializeResponse(buf);
			callback.onRequestResult(requestId, result);
		} else if (msgType == MessageType.REQUEST_FAILURE) {
			RequestFailure failure = MessageSerializer.deserializeRequestFailure(buf);
			callback.onRequestFailure(failure.getRequestId(), failure.getCause());
		} else if (msgType == MessageType.SERVER_FAILURE) {
			throw MessageSerializer.deserializeServerFailure(buf);
		} else {
			throw new IllegalStateException("Unexpected response type '" + msgType + "'");
		}
	} catch (Throwable t1) {
		try {
			callback.onFailure(t1);
		} catch (Throwable t2) {
			LOG.error("Failed to notify callback about failure", t2);
		}
	} finally {
		ReferenceCountUtil.release(msg);
	}
}

Example 10

Source File: KvStateServerHandlerTest.java From flink with Apache License 2.0

4 votes

/**
 * Tests the failure response with {@link UnknownKeyOrNamespaceException} as cause
 * on queries for non-existing keys.
 */
@Test
public void testQueryUnknownKey() 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);

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

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

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

	backend.getPartitionedState(VoidNamespace.INSTANCE, VoidNamespaceSerializer.INSTANCE, desc);

	byte[] serializedKeyAndNamespace = KvStateSerializer.serializeKeyAndNamespace(
			1238283,
			IntSerializer.INSTANCE,
			VoidNamespace.INSTANCE,
			VoidNamespaceSerializer.INSTANCE);

	long requestId = Integer.MAX_VALUE + 22982L;

	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_FAILURE, MessageSerializer.deserializeHeader(buf));
	RequestFailure response = MessageSerializer.deserializeRequestFailure(buf);

	assertEquals(requestId, response.getRequestId());

	assertTrue("Did not respond with expected failure cause", response.getCause() instanceof UnknownKeyOrNamespaceException);

	assertEquals(1L, stats.getNumRequests());
	assertEquals(1L, stats.getNumFailed());
}

Example 11

Source File: KvStateServerHandlerTest.java From flink with Apache License 2.0

4 votes

/**
 * Tests the failure response on a failure on the {@link InternalKvState#getSerializedValue(byte[], TypeSerializer, TypeSerializer, TypeSerializer)} call.
 */
@Test
public void testFailureOnGetSerializedValue() 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);

	// Failing KvState
	InternalKvState<Integer, VoidNamespace, Long> kvState =
			new InternalKvState<Integer, VoidNamespace, Long>() {
				@Override
				public TypeSerializer<Integer> getKeySerializer() {
					return IntSerializer.INSTANCE;
				}

				@Override
				public TypeSerializer<VoidNamespace> getNamespaceSerializer() {
					return VoidNamespaceSerializer.INSTANCE;
				}

				@Override
				public TypeSerializer<Long> getValueSerializer() {
					return LongSerializer.INSTANCE;
				}

				@Override
				public void setCurrentNamespace(VoidNamespace namespace) {
					// do nothing
				}

				@Override
				public byte[] getSerializedValue(
						final byte[] serializedKeyAndNamespace,
						final TypeSerializer<Integer> safeKeySerializer,
						final TypeSerializer<VoidNamespace> safeNamespaceSerializer,
						final TypeSerializer<Long> safeValueSerializer) throws Exception {
					throw new RuntimeException("Expected test Exception");
				}

				@Override
				public StateIncrementalVisitor<Integer, VoidNamespace, Long> getStateIncrementalVisitor(int recommendedMaxNumberOfReturnedRecords) {
					throw new UnsupportedOperationException();
				}

				@Override
				public void clear() {

				}
			};

	KvStateID kvStateId = registry.registerKvState(
			new JobID(),
			new JobVertexID(),
			new KeyGroupRange(0, 0),
			"vanilla",
			kvState);

	KvStateInternalRequest request = new KvStateInternalRequest(kvStateId, new byte[0]);
	ByteBuf serRequest = MessageSerializer.serializeRequest(channel.alloc(), 282872L, 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_FAILURE, MessageSerializer.deserializeHeader(buf));
	RequestFailure response = MessageSerializer.deserializeRequestFailure(buf);

	assertTrue(response.getCause().getMessage().contains("Expected test Exception"));

	assertEquals(1L, stats.getNumRequests());
	assertEquals(1L, stats.getNumFailed());
}

Example 12

Source File: KvStateServerHandlerTest.java From flink with Apache License 2.0

4 votes

/**
 * Tests the failure response on a rejected execution, because the query executor has been closed.
 */
@Test
public void testQueryExecutorShutDown() throws Throwable {
	KvStateRegistry registry = new KvStateRegistry();
	AtomicKvStateRequestStats stats = new AtomicKvStateRequestStats();

	KvStateServerImpl localTestServer = new KvStateServerImpl(
			InetAddress.getLocalHost(),
			Collections.singletonList(0).iterator(),
			1,
			1,
			new KvStateRegistry(),
			new DisabledKvStateRequestStats());

	localTestServer.start();
	localTestServer.shutdown();
	assertTrue(localTestServer.getQueryExecutor().isTerminated());

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

	KvStateServerHandler handler = new KvStateServerHandler(localTestServer, 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);
	KeyedStateBackend<Integer> backend = createKeyedStateBackend(registry, numKeyGroups, abstractBackend, dummyEnv);

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

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

	backend.getPartitionedState(VoidNamespace.INSTANCE, VoidNamespaceSerializer.INSTANCE, desc);

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

	KvStateInternalRequest request = new KvStateInternalRequest(registryListener.kvStateId, new byte[0]);
	ByteBuf serRequest = MessageSerializer.serializeRequest(channel.alloc(), 282872L, 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_FAILURE, MessageSerializer.deserializeHeader(buf));
	RequestFailure response = MessageSerializer.deserializeRequestFailure(buf);

	assertTrue(response.getCause().getMessage().contains("RejectedExecutionException"));

	assertEquals(1L, stats.getNumRequests());
	assertEquals(1L, stats.getNumFailed());

	localTestServer.shutdown();
}

Example 13

Source File: KvStateServerHandlerTest.java From Flink-CEPplus with Apache License 2.0

4 votes

/**
 * Tests the failure response on a rejected execution, because the query executor has been closed.
 */
@Test
public void testQueryExecutorShutDown() throws Throwable {
	KvStateRegistry registry = new KvStateRegistry();
	AtomicKvStateRequestStats stats = new AtomicKvStateRequestStats();

	KvStateServerImpl localTestServer = new KvStateServerImpl(
			InetAddress.getLocalHost(),
			Collections.singletonList(0).iterator(),
			1,
			1,
			new KvStateRegistry(),
			new DisabledKvStateRequestStats());

	localTestServer.start();
	localTestServer.shutdown();
	assertTrue(localTestServer.getQueryExecutor().isTerminated());

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

	KvStateServerHandler handler = new KvStateServerHandler(localTestServer, 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);
	KeyedStateBackend<Integer> backend = createKeyedStateBackend(registry, numKeyGroups, abstractBackend, dummyEnv);

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

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

	backend.getPartitionedState(VoidNamespace.INSTANCE, VoidNamespaceSerializer.INSTANCE, desc);

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

	KvStateInternalRequest request = new KvStateInternalRequest(registryListener.kvStateId, new byte[0]);
	ByteBuf serRequest = MessageSerializer.serializeRequest(channel.alloc(), 282872L, 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_FAILURE, MessageSerializer.deserializeHeader(buf));
	RequestFailure response = MessageSerializer.deserializeRequestFailure(buf);

	assertTrue(response.getCause().getMessage().contains("RejectedExecutionException"));

	assertEquals(1L, stats.getNumRequests());
	assertEquals(1L, stats.getNumFailed());

	localTestServer.shutdown();
}

Example 14

Source File: KvStateServerHandlerTest.java From Flink-CEPplus with Apache License 2.0

4 votes

/**
 * Tests the failure response on a failure on the {@link InternalKvState#getSerializedValue(byte[], TypeSerializer, TypeSerializer, TypeSerializer)} call.
 */
@Test
public void testFailureOnGetSerializedValue() 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);

	// Failing KvState
	InternalKvState<Integer, VoidNamespace, Long> kvState =
			new InternalKvState<Integer, VoidNamespace, Long>() {
				@Override
				public TypeSerializer<Integer> getKeySerializer() {
					return IntSerializer.INSTANCE;
				}

				@Override
				public TypeSerializer<VoidNamespace> getNamespaceSerializer() {
					return VoidNamespaceSerializer.INSTANCE;
				}

				@Override
				public TypeSerializer<Long> getValueSerializer() {
					return LongSerializer.INSTANCE;
				}

				@Override
				public void setCurrentNamespace(VoidNamespace namespace) {
					// do nothing
				}

				@Override
				public byte[] getSerializedValue(
						final byte[] serializedKeyAndNamespace,
						final TypeSerializer<Integer> safeKeySerializer,
						final TypeSerializer<VoidNamespace> safeNamespaceSerializer,
						final TypeSerializer<Long> safeValueSerializer) throws Exception {
					throw new RuntimeException("Expected test Exception");
				}

				@Override
				public StateIncrementalVisitor<Integer, VoidNamespace, Long> getStateIncrementalVisitor(int recommendedMaxNumberOfReturnedRecords) {
					throw new UnsupportedOperationException();
				}

				@Override
				public void clear() {

				}
			};

	KvStateID kvStateId = registry.registerKvState(
			new JobID(),
			new JobVertexID(),
			new KeyGroupRange(0, 0),
			"vanilla",
			kvState);

	KvStateInternalRequest request = new KvStateInternalRequest(kvStateId, new byte[0]);
	ByteBuf serRequest = MessageSerializer.serializeRequest(channel.alloc(), 282872L, 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_FAILURE, MessageSerializer.deserializeHeader(buf));
	RequestFailure response = MessageSerializer.deserializeRequestFailure(buf);

	assertTrue(response.getCause().getMessage().contains("Expected test Exception"));

	assertEquals(1L, stats.getNumRequests());
	assertEquals(1L, stats.getNumFailed());
}

Example 15

Source File: KvStateServerHandlerTest.java From flink with Apache License 2.0

4 votes

/**
 * Tests the failure response with {@link UnknownKeyOrNamespaceException} as cause
 * on queries for non-existing keys.
 */
@Test
public void testQueryUnknownKey() 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);

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

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

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

	backend.getPartitionedState(VoidNamespace.INSTANCE, VoidNamespaceSerializer.INSTANCE, desc);

	byte[] serializedKeyAndNamespace = KvStateSerializer.serializeKeyAndNamespace(
			1238283,
			IntSerializer.INSTANCE,
			VoidNamespace.INSTANCE,
			VoidNamespaceSerializer.INSTANCE);

	long requestId = Integer.MAX_VALUE + 22982L;

	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_FAILURE, MessageSerializer.deserializeHeader(buf));
	RequestFailure response = MessageSerializer.deserializeRequestFailure(buf);
	buf.release();

	assertEquals(requestId, response.getRequestId());

	assertTrue("Did not respond with expected failure cause", response.getCause() instanceof UnknownKeyOrNamespaceException);

	assertEquals(1L, stats.getNumRequests());
	assertEquals(1L, stats.getNumFailed());
}

Example 16

Source File: KvStateServerHandlerTest.java From flink with Apache License 2.0

4 votes

/**
 * Tests the failure response on a failure on the {@link InternalKvState#getSerializedValue(byte[], TypeSerializer, TypeSerializer, TypeSerializer)} call.
 */
@Test
public void testFailureOnGetSerializedValue() 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);

	// Failing KvState
	InternalKvState<Integer, VoidNamespace, Long> kvState =
			new InternalKvState<Integer, VoidNamespace, Long>() {
				@Override
				public TypeSerializer<Integer> getKeySerializer() {
					return IntSerializer.INSTANCE;
				}

				@Override
				public TypeSerializer<VoidNamespace> getNamespaceSerializer() {
					return VoidNamespaceSerializer.INSTANCE;
				}

				@Override
				public TypeSerializer<Long> getValueSerializer() {
					return LongSerializer.INSTANCE;
				}

				@Override
				public void setCurrentNamespace(VoidNamespace namespace) {
					// do nothing
				}

				@Override
				public byte[] getSerializedValue(
						final byte[] serializedKeyAndNamespace,
						final TypeSerializer<Integer> safeKeySerializer,
						final TypeSerializer<VoidNamespace> safeNamespaceSerializer,
						final TypeSerializer<Long> safeValueSerializer) throws Exception {
					throw new RuntimeException("Expected test Exception");
				}

				@Override
				public StateIncrementalVisitor<Integer, VoidNamespace, Long> getStateIncrementalVisitor(int recommendedMaxNumberOfReturnedRecords) {
					throw new UnsupportedOperationException();
				}

				@Override
				public void clear() {

				}
			};

	KvStateID kvStateId = registry.registerKvState(
			new JobID(),
			new JobVertexID(),
			new KeyGroupRange(0, 0),
			"vanilla",
			kvState);

	KvStateInternalRequest request = new KvStateInternalRequest(kvStateId, new byte[0]);
	ByteBuf serRequest = MessageSerializer.serializeRequest(channel.alloc(), 282872L, 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_FAILURE, MessageSerializer.deserializeHeader(buf));
	RequestFailure response = MessageSerializer.deserializeRequestFailure(buf);
	buf.release();

	assertTrue(response.getCause().getMessage().contains("Expected test Exception"));

	assertEquals(1L, stats.getNumRequests());
	assertEquals(1L, stats.getNumFailed());
}

Example 17

Source File: KvStateServerHandlerTest.java From flink with Apache License 2.0

4 votes

/**
 * Tests the failure response on a rejected execution, because the query executor has been closed.
 */
@Test
public void testQueryExecutorShutDown() throws Throwable {
	KvStateRegistry registry = new KvStateRegistry();
	AtomicKvStateRequestStats stats = new AtomicKvStateRequestStats();

	KvStateServerImpl localTestServer = new KvStateServerImpl(
			InetAddress.getLocalHost().getHostName(),
			Collections.singletonList(0).iterator(),
			1,
			1,
			new KvStateRegistry(),
			new DisabledKvStateRequestStats());

	localTestServer.start();
	localTestServer.shutdown();
	assertTrue(localTestServer.getQueryExecutor().isTerminated());

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

	KvStateServerHandler handler = new KvStateServerHandler(localTestServer, 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);
	KeyedStateBackend<Integer> backend = createKeyedStateBackend(registry, numKeyGroups, abstractBackend, dummyEnv);

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

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

	backend.getPartitionedState(VoidNamespace.INSTANCE, VoidNamespaceSerializer.INSTANCE, desc);

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

	KvStateInternalRequest request = new KvStateInternalRequest(registryListener.kvStateId, new byte[0]);
	ByteBuf serRequest = MessageSerializer.serializeRequest(channel.alloc(), 282872L, 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_FAILURE, MessageSerializer.deserializeHeader(buf));
	RequestFailure response = MessageSerializer.deserializeRequestFailure(buf);
	buf.release();

	assertTrue(response.getCause().getMessage().contains("RejectedExecutionException"));

	assertEquals(1L, stats.getNumRequests());
	assertEquals(1L, stats.getNumFailed());

	localTestServer.shutdown();
}

Example 18

Source File: KvStateServerHandlerTest.java From Flink-CEPplus with Apache License 2.0

4 votes

/**
 * Tests the failure response with {@link UnknownKeyOrNamespaceException} as cause
 * on queries for non-existing keys.
 */
@Test
public void testQueryUnknownKey() 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);

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

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

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

	backend.getPartitionedState(VoidNamespace.INSTANCE, VoidNamespaceSerializer.INSTANCE, desc);

	byte[] serializedKeyAndNamespace = KvStateSerializer.serializeKeyAndNamespace(
			1238283,
			IntSerializer.INSTANCE,
			VoidNamespace.INSTANCE,
			VoidNamespaceSerializer.INSTANCE);

	long requestId = Integer.MAX_VALUE + 22982L;

	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_FAILURE, MessageSerializer.deserializeHeader(buf));
	RequestFailure response = MessageSerializer.deserializeRequestFailure(buf);

	assertEquals(requestId, response.getRequestId());

	assertTrue("Did not respond with expected failure cause", response.getCause() instanceof UnknownKeyOrNamespaceException);

	assertEquals(1L, stats.getNumRequests());
	assertEquals(1L, stats.getNumFailed());
}