Examples with WarningContext org.apache.cassandra.service.reads.trackwarnings.WarningContext used on opensource projects

Example 1 with WarningContext

use of org.apache.cassandra.service.reads.trackwarnings.WarningContext in project cassandra by apache.

the class ReadCallback method getWarningContext.

private WarningContext getWarningContext() {
    WarningContext current;
    do {
        current = warningContext;
        if (current != null)
            return current;
        current = new WarningContext();
    } while (!warningsUpdater.compareAndSet(this, null, current));
    return current;
}

Example 2 with WarningContext

use of org.apache.cassandra.service.reads.trackwarnings.WarningContext in project cassandra by apache.

the class ReadCallback method awaitResults.

public void awaitResults() throws ReadFailureException, ReadTimeoutException {
    boolean signaled = await(command.getTimeout(MILLISECONDS), TimeUnit.MILLISECONDS);
    /**
     * Here we are checking isDataPresent in addition to the responses size because there is a possibility
     * that an asynchronous speculative execution request could be returning after a local failure already
     * signaled. Responses may have been set while the data reference is not yet.
     * See {@link DigestResolver#preprocess(Message)}
     * CASSANDRA-16097
     */
    int received = resolver.responses.size();
    boolean failed = failures > 0 && (blockFor > received || !resolver.isDataPresent());
    WarningContext warnings = warningContext;
    // save the snapshot so abort state is not changed between now and when mayAbort gets called
    WarningsSnapshot snapshot = null;
    if (warnings != null) {
        snapshot = warnings.snapshot();
        // this is likely to happen when a timeout happens or from a speculative response
        if (!snapshot.isEmpty())
            CoordinatorWarnings.update(command, snapshot);
    }
    if (signaled && !failed)
        return;
    if (isTracing()) {
        String gotData = received > 0 ? (resolver.isDataPresent() ? " (including data)" : " (only digests)") : "";
        Tracing.trace("{}; received {} of {} responses{}", failed ? "Failed" : "Timed out", received, blockFor, gotData);
    } else if (logger.isDebugEnabled()) {
        String gotData = received > 0 ? (resolver.isDataPresent() ? " (including data)" : " (only digests)") : "";
        logger.debug("{}; received {} of {} responses{}", failed ? "Failed" : "Timed out", received, blockFor, gotData);
    }
    if (snapshot != null)
        snapshot.maybeAbort(command, replicaPlan().consistencyLevel(), received, blockFor, resolver.isDataPresent(), failureReasonByEndpoint);
    // Same as for writes, see AbstractWriteResponseHandler
    throw failed ? new ReadFailureException(replicaPlan().consistencyLevel(), received, blockFor, resolver.isDataPresent(), failureReasonByEndpoint) : new ReadTimeoutException(replicaPlan().consistencyLevel(), received, blockFor, resolver.isDataPresent());
}