Examples with SerializedPage io.hetu.core.transport.execution.buffer.SerializedPage used on opensource projects

Example 31 with SerializedPage

use of io.hetu.core.transport.execution.buffer.SerializedPage in project hetu-core by openlookeng.

the class NestedLoopJoinPagesBuilder method restore.

@Override
public void restore(Object state, BlockEncodingSerdeProvider serdeProvider) {
    NestedLoopJoinPagesBuilderState myState = (NestedLoopJoinPagesBuilderState) state;
    this.pages.clear();
    PagesSerde serde = (PagesSerde) serdeProvider;
    for (Object obj : myState.pages) {
        SerializedPage sp = SerializedPage.restoreSerializedPage(obj);
        this.pages.add(serde.deserialize(sp));
    }
    this.finished = myState.finished;
    this.estimatedSize = myState.estimatedSize;
}

Example 32 with SerializedPage

use of io.hetu.core.transport.execution.buffer.SerializedPage in project hetu-core by openlookeng.

the class TaskResource method getResults.

@GET
@Path("{taskId}/results/{bufferId}/{token}")
@Produces(PRESTO_PAGES)
public void getResults(@PathParam("taskId") TaskId taskId, @PathParam("bufferId") OutputBufferId bufferId, @PathParam("token") final long token, @HeaderParam(PRESTO_MAX_SIZE) DataSize maxSize, @HeaderParam(PRESTO_TASK_INSTANCE_ID) String taskInstanceId, @Suspended AsyncResponse asyncResponse) {
    SecurityRequireNonNull.requireNonNull(taskId, "taskId is null");
    SecurityRequireNonNull.requireNonNull(bufferId, "bufferId is null");
    long start = System.nanoTime();
    ListenableFuture<BufferResult> bufferResultFuture = taskManager.getTaskResults(taskId, bufferId, token, maxSize, taskInstanceId);
    if (bufferResultFuture == null) {
        // Request came from task has been cancelled.
        asyncResponse.resume(Response.status(Status.NO_CONTENT).header(PRESTO_PAGE_TOKEN, token).header(PRESTO_PAGE_NEXT_TOKEN, token).header(PRESTO_BUFFER_COMPLETE, // keep requesting task running, until they are cancelled (to resume)
        false).build());
        return;
    }
    Duration waitTime = randomizeWaitTime(DEFAULT_MAX_WAIT_TIME);
    bufferResultFuture = addTimeout(bufferResultFuture, () -> BufferResult.emptyResults(token, false), waitTime, timeoutExecutor);
    ListenableFuture<Response> responseFuture = Futures.transform(bufferResultFuture, result -> {
        List<SerializedPage> serializedPages = result.getSerializedPages();
        GenericEntity<?> entity = null;
        Status status;
        if (serializedPages.isEmpty()) {
            status = Status.NO_CONTENT;
        } else {
            entity = new GenericEntity<>(serializedPages, new TypeToken<List<Page>>() {
            }.getType());
            status = Status.OK;
        }
        return Response.status(status).entity(entity).header(PRESTO_PAGE_TOKEN, result.getToken()).header(PRESTO_PAGE_NEXT_TOKEN, result.getNextToken()).header(PRESTO_BUFFER_COMPLETE, result.isBufferComplete()).build();
    }, directExecutor());
    // For hard timeout, add an additional time to max wait for thread scheduling contention and GC
    Duration timeout = new Duration(waitTime.toMillis() + ADDITIONAL_WAIT_TIME.toMillis(), MILLISECONDS);
    bindAsyncResponse(asyncResponse, responseFuture, responseExecutor).withTimeout(timeout, Response.status(Status.NO_CONTENT).header(PRESTO_PAGE_TOKEN, token).header(PRESTO_PAGE_NEXT_TOKEN, token).header(PRESTO_BUFFER_COMPLETE, false).build());
    responseFuture.addListener(() -> readFromOutputBufferTime.add(Duration.nanosSince(start)), directExecutor());
    asyncResponse.register((CompletionCallback) throwable -> resultsRequestTime.add(Duration.nanosSince(start)));
}