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Example 1 with SegmentIsTruncated

use of io.pravega.shared.protocol.netty.WireCommands.SegmentIsTruncated in project pravega by pravega.

the class SegmentMetadataClientTest method testTruncateWithSegmentTruncationException.

@Test(timeout = 10000)
public void testTruncateWithSegmentTruncationException() throws ConnectionFailedException {
    Segment segment = new Segment("scope", "testTruncate", 4);
    PravegaNodeUri endpoint = new PravegaNodeUri("localhost", 0);
    @Cleanup MockConnectionFactoryImpl cf = new MockConnectionFactoryImpl();
    @Cleanup MockController controller = new MockController(endpoint.getEndpoint(), endpoint.getPort(), cf, true);
    @Cleanup ClientConnection connection = mock(ClientConnection.class);
    cf.provideConnection(endpoint, connection);
    @Cleanup SegmentMetadataClientImpl client = new SegmentMetadataClientImpl(segment, controller, cf, "");
    client.getConnection();
    ReplyProcessor processor = cf.getProcessor(endpoint);
    AtomicLong requestId = new AtomicLong();
    Mockito.doAnswer(new Answer<Void>() {

        @Override
        public Void answer(InvocationOnMock invocation) throws Throwable {
            WireCommands.TruncateSegment truncateSegment = invocation.getArgument(0);
            processor.process(new SegmentIsTruncated(truncateSegment.getRequestId(), segment.getScopedName(), 124L, "", 124L));
            requestId.set(truncateSegment.getRequestId());
            return null;
        }
    }).when(connection).send(any(WireCommands.TruncateSegment.class));
    client.truncateSegment(123L).join();
    Mockito.verify(connection).send(Mockito.eq(new WireCommands.TruncateSegment(requestId.get(), segment.getScopedName(), 123L, "")));
}
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Example 2 with SegmentIsTruncated

use of io.pravega.shared.protocol.netty.WireCommands.SegmentIsTruncated in project pravega by pravega.

the class PravegaRequestProcessor method handleException.

private Void handleException(long requestId, String segment, long offset, String operation, Throwable u) {
    if (u == null) {
        IllegalStateException exception = new IllegalStateException("No exception to handle.");
        log.error(requestId, "Error (Segment = '{}', Operation = '{}')", segment, operation, exception);
        throw exception;
    }
    u = Exceptions.unwrap(u);
    String clientReplyStackTrace = replyWithStackTraceOnError ? Throwables.getStackTraceAsString(u) : EMPTY_STACK_TRACE;
    final Consumer<Throwable> failureHandler = t -> {
        log.error(requestId, "Error (Segment = '{}', Operation = '{}')", segment, "handling result of " + operation, t);
        connection.close();
    };
    if (u instanceof StreamSegmentExistsException) {
        log.info(requestId, "Segment '{}' already exists and cannot perform operation '{}'.", segment, operation);
        invokeSafely(connection::send, new SegmentAlreadyExists(requestId, segment, clientReplyStackTrace), failureHandler);
    } else if (u instanceof StreamSegmentNotExistsException) {
        log.warn(requestId, "Segment '{}' does not exist and cannot perform operation '{}'.", segment, operation);
        invokeSafely(connection::send, new NoSuchSegment(requestId, segment, clientReplyStackTrace, offset), failureHandler);
    } else if (u instanceof StreamSegmentSealedException) {
        log.info(requestId, "Segment '{}' is sealed and cannot perform operation '{}'.", segment, operation);
        invokeSafely(connection::send, new SegmentIsSealed(requestId, segment, clientReplyStackTrace, offset), failureHandler);
    } else if (u instanceof ContainerNotFoundException) {
        int containerId = ((ContainerNotFoundException) u).getContainerId();
        log.warn(requestId, "Wrong host. Segment = '{}' (Container {}) is not owned. Operation = '{}').", segment, containerId, operation);
        invokeSafely(connection::send, new WrongHost(requestId, segment, "", clientReplyStackTrace), failureHandler);
    } else if (u instanceof ReadCancellationException) {
        log.info(requestId, "Sending empty response on connection {} while reading segment {} due to CancellationException.", connection, segment);
        invokeSafely(connection::send, new SegmentRead(segment, offset, true, false, EMPTY_BUFFER, requestId), failureHandler);
    } else if (u instanceof CancellationException) {
        log.info(requestId, "Closing connection {} while performing {} due to {}.", connection, operation, u.toString());
        connection.close();
    } else if (u instanceof TokenExpiredException) {
        log.warn(requestId, "Expired token during operation {}", operation);
        invokeSafely(connection::send, new AuthTokenCheckFailed(requestId, clientReplyStackTrace, AuthTokenCheckFailed.ErrorCode.TOKEN_EXPIRED), failureHandler);
    } else if (u instanceof TokenException) {
        log.warn(requestId, "Token exception encountered during operation {}.", operation, u);
        invokeSafely(connection::send, new AuthTokenCheckFailed(requestId, clientReplyStackTrace, AuthTokenCheckFailed.ErrorCode.TOKEN_CHECK_FAILED), failureHandler);
    } else if (u instanceof UnsupportedOperationException) {
        log.warn(requestId, "Unsupported Operation '{}'.", operation, u);
        invokeSafely(connection::send, new OperationUnsupported(requestId, operation, clientReplyStackTrace), failureHandler);
    } else if (u instanceof BadOffsetException) {
        BadOffsetException badOffset = (BadOffsetException) u;
        log.info(requestId, "Segment '{}' is truncated and cannot perform operation '{}' at offset '{}'", segment, operation, offset);
        invokeSafely(connection::send, new SegmentIsTruncated(requestId, segment, badOffset.getExpectedOffset(), clientReplyStackTrace, offset), failureHandler);
    } else if (u instanceof TableSegmentNotEmptyException) {
        log.warn(requestId, "Table segment '{}' is not empty to perform '{}'.", segment, operation);
        invokeSafely(connection::send, new TableSegmentNotEmpty(requestId, segment, clientReplyStackTrace), failureHandler);
    } else if (u instanceof KeyNotExistsException) {
        log.warn(requestId, "Conditional update on Table segment '{}' failed as the key does not exist.", segment);
        invokeSafely(connection::send, new WireCommands.TableKeyDoesNotExist(requestId, segment, clientReplyStackTrace), failureHandler);
    } else if (u instanceof BadKeyVersionException) {
        log.warn(requestId, "Conditional update on Table segment '{}' failed due to bad key version.", segment);
        invokeSafely(connection::send, new WireCommands.TableKeyBadVersion(requestId, segment, clientReplyStackTrace), failureHandler);
    } else if (errorCodeExists(u)) {
        log.warn(requestId, "Operation on segment '{}' failed due to a {}.", segment, u.getClass());
        invokeSafely(connection::send, new WireCommands.ErrorMessage(requestId, segment, u.getMessage(), WireCommands.ErrorMessage.ErrorCode.valueOf(u.getClass())), failureHandler);
    } else {
        logError(requestId, segment, operation, u);
        // Closing connection should reinitialize things, and hopefully fix the problem
        connection.close();
        throw new IllegalStateException("Unknown exception.", u);
    }
    return null;
}
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Example 3 with SegmentIsTruncated

use of io.pravega.shared.protocol.netty.WireCommands.SegmentIsTruncated in project pravega by pravega.

the class PravegaRequestProcessor method handleReadResult.

/**
 * Handles a readResult.
 * If there are cached entries that can be returned without blocking only these are returned.
 * Otherwise the call will request the data and setup a callback to return the data when it is available.
 * If no data is available but it was detected that the Segment had been truncated beyond the current offset,
 * an appropriate message is sent back over the connection.
 */
private void handleReadResult(ReadSegment request, ReadResult result) {
    String segment = request.getSegment();
    ArrayList<BufferView> cachedEntries = new ArrayList<>();
    ReadResultEntry nonCachedEntry = collectCachedEntries(request.getOffset(), result, cachedEntries);
    final String operation = "readSegment";
    boolean truncated = nonCachedEntry != null && nonCachedEntry.getType() == Truncated;
    boolean endOfSegment = nonCachedEntry != null && nonCachedEntry.getType() == EndOfStreamSegment;
    boolean atTail = nonCachedEntry != null && nonCachedEntry.getType() == Future;
    if (!cachedEntries.isEmpty() || endOfSegment) {
        // We managed to collect some data. Send it.
        ByteBuf data = toByteBuf(cachedEntries);
        SegmentRead reply = new SegmentRead(segment, request.getOffset(), atTail, endOfSegment, data, request.getRequestId());
        connection.send(reply);
        this.statsRecorder.read(segment, reply.getData().readableBytes());
    } else if (truncated) {
        // We didn't collect any data, instead we determined that the current read offset was truncated.
        // Determine the current Start Offset and send that back.
        segmentStore.getStreamSegmentInfo(segment, TIMEOUT).thenAccept(info -> connection.send(new SegmentIsTruncated(request.getRequestId(), segment, info.getStartOffset(), EMPTY_STACK_TRACE, nonCachedEntry.getStreamSegmentOffset()))).exceptionally(e -> handleException(request.getRequestId(), segment, nonCachedEntry.getStreamSegmentOffset(), operation, wrapCancellationException(e)));
    } else {
        Preconditions.checkState(nonCachedEntry != null, "No ReadResultEntries returned from read!?");
        nonCachedEntry.requestContent(TIMEOUT);
        nonCachedEntry.getContent().thenAccept(contents -> {
            ByteBuf data = toByteBuf(Collections.singletonList(contents));
            SegmentRead reply = new SegmentRead(segment, nonCachedEntry.getStreamSegmentOffset(), atTail, endOfSegment, data, request.getRequestId());
            connection.send(reply);
            this.statsRecorder.read(segment, reply.getData().readableBytes());
        }).exceptionally(exception -> {
            Throwable e = Exceptions.unwrap(exception);
            if (e instanceof StreamSegmentTruncatedException) {
                // The Segment may have been truncated in Storage after we got this entry but before we managed
                // to make a read. In that case, send the appropriate error back.
                final String clientReplyStackTrace = replyWithStackTraceOnError ? e.getMessage() : EMPTY_STACK_TRACE;
                connection.send(new SegmentIsTruncated(request.getRequestId(), segment, ((StreamSegmentTruncatedException) e).getStartOffset(), clientReplyStackTrace, nonCachedEntry.getStreamSegmentOffset()));
            } else {
                handleException(request.getRequestId(), segment, nonCachedEntry.getStreamSegmentOffset(), operation, wrapCancellationException(e));
            }
            return null;
        }).exceptionally(e -> handleException(request.getRequestId(), segment, nonCachedEntry.getStreamSegmentOffset(), operation, wrapCancellationException(e)));
    }
}
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Math.max(java.lang.Math.max) SegmentIsSealed(io.pravega.shared.protocol.netty.WireCommands.SegmentIsSealed) ReadResult(io.pravega.segmentstore.contracts.ReadResult) IntStream(java.util.stream.IntStream) Setter(lombok.Setter) DeleteSegment(io.pravega.shared.protocol.netty.WireCommands.DeleteSegment) SegmentPolicyUpdated(io.pravega.shared.protocol.netty.WireCommands.SegmentPolicyUpdated) Getter(lombok.Getter) NoSuchSegment(io.pravega.shared.protocol.netty.WireCommands.NoSuchSegment) AtomicBoolean(java.util.concurrent.atomic.AtomicBoolean) HashMap(java.util.HashMap) CompletableFuture(java.util.concurrent.CompletableFuture) Iterators(com.google.common.collect.Iterators) TableSegmentNotEmpty(io.pravega.shared.protocol.netty.WireCommands.TableSegmentNotEmpty) TableSegmentNotEmptyException(io.pravega.segmentstore.contracts.tables.TableSegmentNotEmptyException) ByteBuf(io.netty.buffer.ByteBuf) ReadResultEntry(io.pravega.segmentstore.contracts.ReadResultEntry) SCALE_POLICY_TYPE(io.pravega.segmentstore.contracts.Attributes.SCALE_POLICY_TYPE) TYPE_PLUS_LENGTH_SIZE(io.pravega.shared.protocol.netty.WireCommands.TYPE_PLUS_LENGTH_SIZE) StreamSegmentInfo(io.pravega.shared.protocol.netty.WireCommands.StreamSegmentInfo) TruncateSegment(io.pravega.shared.protocol.netty.WireCommands.TruncateSegment) ReadSegment(io.pravega.shared.protocol.netty.WireCommands.ReadSegment) SegmentAlreadyExists(io.pravega.shared.protocol.netty.WireCommands.SegmentAlreadyExists) ByteBufWrapper(io.pravega.shared.protocol.netty.ByteBufWrapper) LoggerHelpers(io.pravega.common.LoggerHelpers) MergeStreamSegmentResult(io.pravega.segmentstore.contracts.MergeStreamSegmentResult) StreamSegmentMergedException(io.pravega.segmentstore.contracts.StreamSegmentMergedException) Timer(io.pravega.common.Timer) TableSegmentStatsRecorder(io.pravega.segmentstore.server.host.stat.TableSegmentStatsRecorder) SegmentAttributeUpdated(io.pravega.shared.protocol.netty.WireCommands.SegmentAttributeUpdated) Consumer(java.util.function.Consumer) AbstractMap(java.util.AbstractMap) Collectors.toList(java.util.stream.Collectors.toList) VisibleForTesting(com.google.common.annotations.VisibleForTesting) AttributeUpdateType(io.pravega.segmentstore.contracts.AttributeUpdateType) Collections(java.util.Collections) BufferView(io.pravega.common.util.BufferView) SegmentRead(io.pravega.shared.protocol.netty.WireCommands.SegmentRead) SegmentIsTruncated(io.pravega.shared.protocol.netty.WireCommands.SegmentIsTruncated) ReadResultEntry(io.pravega.segmentstore.contracts.ReadResultEntry) ArrayList(java.util.ArrayList) StreamSegmentTruncatedException(io.pravega.segmentstore.contracts.StreamSegmentTruncatedException) ByteBuf(io.netty.buffer.ByteBuf)

Aggregations

VisibleForTesting (com.google.common.annotations.VisibleForTesting)2 Preconditions (com.google.common.base.Preconditions)2 Throwables (com.google.common.base.Throwables)2 Iterators (com.google.common.collect.Iterators)2 ByteBuf (io.netty.buffer.ByteBuf)2 Unpooled (io.netty.buffer.Unpooled)2 EMPTY_BUFFER (io.netty.buffer.Unpooled.EMPTY_BUFFER)2 READ (io.pravega.auth.AuthHandler.Permissions.READ)2 READ_UPDATE (io.pravega.auth.AuthHandler.Permissions.READ_UPDATE)2 TokenException (io.pravega.auth.TokenException)2 TokenExpiredException (io.pravega.auth.TokenExpiredException)2 Exceptions (io.pravega.common.Exceptions)2 LoggerHelpers (io.pravega.common.LoggerHelpers)2 Timer (io.pravega.common.Timer)2 Futures (io.pravega.common.concurrent.Futures)2 Callbacks.invokeSafely (io.pravega.common.function.Callbacks.invokeSafely)2 TagLogger (io.pravega.common.tracing.TagLogger)2 BufferView (io.pravega.common.util.BufferView)2 AttributeId (io.pravega.segmentstore.contracts.AttributeId)2 AttributeUpdate (io.pravega.segmentstore.contracts.AttributeUpdate)2