Examples with AbortEvent io.pravega.shared.controller.event.AbortEvent used on opensource projects

Example 16 with AbortEvent

use of io.pravega.shared.controller.event.AbortEvent in project pravega by pravega.

the class AbortRequestHandler method processEvent.

@Override
public CompletableFuture<Void> processEvent(AbortEvent event) {
    String scope = event.getScope();
    String stream = event.getStream();
    int epoch = event.getEpoch();
    UUID txId = event.getTxid();
    long requestId = event.getRequestId();
    if (requestId == 0L) {
        requestId = ControllerService.nextRequestId();
    }
    Timer timer = new Timer();
    OperationContext context = streamMetadataStore.createStreamContext(scope, stream, requestId);
    log.info(requestId, "Aborting transaction {} on stream {}/{}", event.getTxid(), event.getScope(), event.getStream());
    return Futures.toVoid(streamMetadataStore.getSegmentsInEpoch(event.getScope(), event.getStream(), epoch, context, executor).thenApply(segments -> segments.stream().map(StreamSegmentRecord::segmentId).collect(Collectors.toList())).thenCompose(segments -> streamMetadataTasks.notifyTxnAbort(scope, stream, segments, txId, context.getRequestId())).thenCompose(x -> streamMetadataStore.abortTransaction(scope, stream, txId, context, executor)).whenComplete((result, error) -> {
        if (error != null) {
            log.warn(context.getRequestId(), "Failed aborting transaction {} on stream {}/{}", event.getTxid(), event.getScope(), event.getStream());
            TransactionMetrics.getInstance().abortTransactionFailed(scope, stream);
        } else {
            log.info(context.getRequestId(), "Successfully aborted transaction {} on stream {}/{}", event.getTxid(), event.getScope(), event.getStream());
            if (processedEvents != null) {
                processedEvents.offer(event);
            }
            TransactionMetrics.getInstance().abortTransaction(scope, stream, timer.getElapsed());
        }
    }));
}

Example 17 with AbortEvent

use of io.pravega.shared.controller.event.AbortEvent in project pravega by pravega.

the class ControllerEventProcessors method initialize.

private void initialize() {
    // region Create commit event processor
    EventProcessorGroupConfig commitReadersConfig = EventProcessorGroupConfigImpl.builder().streamName(config.getCommitStreamName()).readerGroupName(config.getCommitReaderGroupName()).eventProcessorCount(config.getCommitReaderGroupSize()).checkpointConfig(CheckpointConfig.none()).build();
    EventProcessorConfig<CommitEvent> commitConfig = EventProcessorConfig.<CommitEvent>builder().config(commitReadersConfig).decider(ExceptionHandler.DEFAULT_EXCEPTION_HANDLER).serializer(COMMIT_EVENT_SERIALIZER).supplier(() -> new ConcurrentEventProcessor<>(commitRequestHandler, executor)).minRebalanceIntervalMillis(rebalanceIntervalMillis).build();
    log.debug("Creating commit event processors");
    Retry.indefinitelyWithExpBackoff(DELAY, MULTIPLIER, MAX_DELAY, e -> log.warn("Error creating commit event processor group", e)).run(() -> {
        commitEventProcessors = system.createEventProcessorGroup(commitConfig, checkpointStore, rebalanceExecutor);
        return null;
    });
    // endregion
    // region Create abort event processor
    EventProcessorGroupConfig abortReadersConfig = EventProcessorGroupConfigImpl.builder().streamName(config.getAbortStreamName()).readerGroupName(config.getAbortReaderGroupName()).eventProcessorCount(config.getAbortReaderGroupSize()).checkpointConfig(CheckpointConfig.none()).build();
    EventProcessorConfig<AbortEvent> abortConfig = EventProcessorConfig.<AbortEvent>builder().config(abortReadersConfig).decider(ExceptionHandler.DEFAULT_EXCEPTION_HANDLER).serializer(ABORT_EVENT_SERIALIZER).supplier(() -> new ConcurrentEventProcessor<>(abortRequestHandler, executor)).minRebalanceIntervalMillis(rebalanceIntervalMillis).build();
    log.debug("Creating abort event processors");
    Retry.indefinitelyWithExpBackoff(DELAY, MULTIPLIER, MAX_DELAY, e -> log.warn("Error creating commit event processor group", e)).run(() -> {
        abortEventProcessors = system.createEventProcessorGroup(abortConfig, checkpointStore, rebalanceExecutor);
        return null;
    });
    // endregion
    // region Create request event processor
    EventProcessorGroupConfig requestReadersConfig = EventProcessorGroupConfigImpl.builder().streamName(config.getRequestStreamName()).readerGroupName(config.getRequestReaderGroupName()).eventProcessorCount(1).checkpointConfig(CheckpointConfig.none()).build();
    EventProcessorConfig<ControllerEvent> requestConfig = EventProcessorConfig.builder().config(requestReadersConfig).decider(ExceptionHandler.DEFAULT_EXCEPTION_HANDLER).serializer(CONTROLLER_EVENT_SERIALIZER).supplier(() -> new ConcurrentEventProcessor<>(streamRequestHandler, executor)).minRebalanceIntervalMillis(rebalanceIntervalMillis).build();
    log.debug("Creating stream request event processors");
    Retry.indefinitelyWithExpBackoff(DELAY, MULTIPLIER, MAX_DELAY, e -> log.warn("Error creating request event processor group", e)).run(() -> {
        requestEventProcessors = system.createEventProcessorGroup(requestConfig, checkpointStore, rebalanceExecutor);
        return null;
    });
    // endregion
    // region Create KVtable event processor
    EventProcessorGroupConfig kvtReadersConfig = EventProcessorGroupConfigImpl.builder().streamName(config.getKvtStreamName()).readerGroupName(config.getKvtReaderGroupName()).eventProcessorCount(1).checkpointConfig(CheckpointConfig.none()).build();
    EventProcessorConfig<ControllerEvent> kvtRequestConfig = EventProcessorConfig.builder().config(kvtReadersConfig).decider(ExceptionHandler.DEFAULT_EXCEPTION_HANDLER).serializer(CONTROLLER_EVENT_SERIALIZER).supplier(() -> new ConcurrentEventProcessor<>(kvtRequestHandler, executor)).minRebalanceIntervalMillis(rebalanceIntervalMillis).build();
    log.debug("Creating kvt request event processors");
    Retry.indefinitelyWithExpBackoff(DELAY, MULTIPLIER, MAX_DELAY, e -> log.warn("Error creating request event processor group", e)).run(() -> {
        kvtRequestEventProcessors = system.createEventProcessorGroup(kvtRequestConfig, checkpointStore, rebalanceExecutor);
        return null;
    });
    // endregion
    log.info("Awaiting start of event processors...");
    commitEventProcessors.awaitRunning();
    log.info("Commit event processor started.");
    abortEventProcessors.awaitRunning();
    log.info("Abort event processor started.");
    requestEventProcessors.awaitRunning();
    log.info("Stream request event processor started.");
    kvtRequestEventProcessors.awaitRunning();
    log.info("KVT request event processor started.");
}

Example 18 with AbortEvent

use of io.pravega.shared.controller.event.AbortEvent in project pravega by pravega.

the class TxnSweeper method failOverAbortingTxn.

private CompletableFuture<Void> failOverAbortingTxn(String failedHost, int epoch, TxnResource txn) {
    String scope = txn.getScope();
    String stream = txn.getStream();
    UUID txnId = txn.getTxnId();
    log.info("Host = {}, failing over aborting transaction {}/{}/{}", failedHost, scope, stream, txnId);
    return transactionMetadataTasks.writeAbortEvent(new AbortEvent(scope, stream, epoch, txnId, ControllerService.nextRequestId())).thenComposeAsync(status -> streamMetadataStore.removeTxnFromIndex(failedHost, txn, true), executor);
}