use of org.apache.flink.runtime.state.AbstractStateBackend in project flink by apache.
the class KvStateServerTest method testSimpleRequest.
/**
* Tests a simple successful query via a SocketChannel.
*/
@Test
public void testSimpleRequest() throws Exception {
KvStateServer server = null;
Bootstrap bootstrap = null;
try {
KvStateRegistry registry = new KvStateRegistry();
KvStateRequestStats stats = new AtomicKvStateRequestStats();
server = new KvStateServer(InetAddress.getLocalHost(), 0, 1, 1, registry, stats);
server.start();
KvStateServerAddress serverAddress = server.getAddress();
int numKeyGroups = 1;
AbstractStateBackend abstractBackend = new MemoryStateBackend();
DummyEnvironment dummyEnv = new DummyEnvironment("test", 1, 0);
dummyEnv.setKvStateRegistry(registry);
AbstractKeyedStateBackend<Integer> backend = abstractBackend.createKeyedStateBackend(dummyEnv, new JobID(), "test_op", IntSerializer.INSTANCE, numKeyGroups, new KeyGroupRange(0, 0), registry.createTaskRegistry(new JobID(), new JobVertexID()));
final KvStateServerHandlerTest.TestRegistryListener registryListener = new KvStateServerHandlerTest.TestRegistryListener();
registry.registerListener(registryListener);
ValueStateDescriptor<Integer> desc = new ValueStateDescriptor<>("any", IntSerializer.INSTANCE);
desc.setQueryable("vanilla");
ValueState<Integer> state = backend.getPartitionedState(VoidNamespace.INSTANCE, VoidNamespaceSerializer.INSTANCE, desc);
// Update KvState
int expectedValue = 712828289;
int key = 99812822;
backend.setCurrentKey(key);
state.update(expectedValue);
// Request
byte[] serializedKeyAndNamespace = KvStateRequestSerializer.serializeKeyAndNamespace(key, IntSerializer.INSTANCE, VoidNamespace.INSTANCE, VoidNamespaceSerializer.INSTANCE);
// Connect to the server
final BlockingQueue<ByteBuf> responses = new LinkedBlockingQueue<>();
bootstrap = createBootstrap(new LengthFieldBasedFrameDecoder(Integer.MAX_VALUE, 0, 4, 0, 4), new ChannelInboundHandlerAdapter() {
@Override
public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
responses.add((ByteBuf) msg);
}
});
Channel channel = bootstrap.connect(serverAddress.getHost(), serverAddress.getPort()).sync().channel();
long requestId = Integer.MAX_VALUE + 182828L;
assertTrue(registryListener.registrationName.equals("vanilla"));
ByteBuf request = KvStateRequestSerializer.serializeKvStateRequest(channel.alloc(), requestId, registryListener.kvStateId, serializedKeyAndNamespace);
channel.writeAndFlush(request);
ByteBuf buf = responses.poll(TIMEOUT_MILLIS, TimeUnit.MILLISECONDS);
assertEquals(KvStateRequestType.REQUEST_RESULT, KvStateRequestSerializer.deserializeHeader(buf));
KvStateRequestResult response = KvStateRequestSerializer.deserializeKvStateRequestResult(buf);
assertEquals(requestId, response.getRequestId());
int actualValue = KvStateRequestSerializer.deserializeValue(response.getSerializedResult(), IntSerializer.INSTANCE);
assertEquals(expectedValue, actualValue);
} finally {
if (server != null) {
server.shutDown();
}
if (bootstrap != null) {
EventLoopGroup group = bootstrap.group();
if (group != null) {
group.shutdownGracefully();
}
}
}
}
use of org.apache.flink.runtime.state.AbstractStateBackend in project flink by apache.
the class KvStateServerHandlerTest method testChunkedResponse.
/**
* 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();
}
use of org.apache.flink.runtime.state.AbstractStateBackend in project flink by apache.
the class KvStateServerHandlerTest method testQueryExecutorShutDown.
/**
* 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);
// skip frame length
buf.skipBytes(4);
// 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();
}
use of org.apache.flink.runtime.state.AbstractStateBackend in project flink by apache.
the class KvStateServerHandlerTest method testQueryUnknownKey.
/**
* 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);
// skip frame length
buf.skipBytes(4);
// 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());
}
use of org.apache.flink.runtime.state.AbstractStateBackend in project flink by apache.
the class KvStateServerHandlerTest method testSerializerMismatch.
/**
* Tests the failure response if the serializers don't match.
*/
@Test
public void testSerializerMismatch() 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);
AbstractKeyedStateBackend<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");
ValueState<Integer> state = backend.getPartitionedState(VoidNamespace.INSTANCE, VoidNamespaceSerializer.INSTANCE, desc);
int key = 99812822;
// Update the KvState
backend.setCurrentKey(key);
state.update(712828289);
byte[] wrongKeyAndNamespace = KvStateSerializer.serializeKeyAndNamespace("wrong-key-type", StringSerializer.INSTANCE, "wrong-namespace-type", StringSerializer.INSTANCE);
byte[] wrongNamespace = KvStateSerializer.serializeKeyAndNamespace(key, IntSerializer.INSTANCE, "wrong-namespace-type", StringSerializer.INSTANCE);
assertTrue(registryListener.registrationName.equals("vanilla"));
KvStateInternalRequest request = new KvStateInternalRequest(registryListener.kvStateId, wrongKeyAndNamespace);
ByteBuf serRequest = MessageSerializer.serializeRequest(channel.alloc(), 182828L, request);
// Write the request and wait for the response
channel.writeInbound(serRequest);
ByteBuf buf = (ByteBuf) readInboundBlocking(channel);
// skip frame length
buf.skipBytes(4);
// Verify the response
assertEquals(MessageType.REQUEST_FAILURE, MessageSerializer.deserializeHeader(buf));
RequestFailure response = MessageSerializer.deserializeRequestFailure(buf);
buf.release();
assertEquals(182828L, response.getRequestId());
assertTrue(response.getCause().getMessage().contains("IOException"));
// Repeat with wrong namespace only
request = new KvStateInternalRequest(registryListener.kvStateId, wrongNamespace);
serRequest = MessageSerializer.serializeRequest(channel.alloc(), 182829L, request);
// Write the request and wait for the response
channel.writeInbound(serRequest);
buf = (ByteBuf) readInboundBlocking(channel);
// skip frame length
buf.skipBytes(4);
// Verify the response
assertEquals(MessageType.REQUEST_FAILURE, MessageSerializer.deserializeHeader(buf));
response = MessageSerializer.deserializeRequestFailure(buf);
buf.release();
assertEquals(182829L, response.getRequestId());
assertTrue(response.getCause().getMessage().contains("IOException"));
assertEquals(2L, stats.getNumRequests());
assertEquals(2L, stats.getNumFailed());
}
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