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

Example 1 with WarningsSnapshot

use of org.apache.cassandra.service.reads.trackwarnings.WarningsSnapshot 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());
}

Example 2 with WarningsSnapshot

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

the class WarningsSnapshotTest method mergeEmtpy.

@Test
public void mergeEmtpy() {
    WarningsSnapshot result = empty().merge(empty());
    assertThat(result).isEqualTo(empty());
}

Example 3 with WarningsSnapshot

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

the class WarningsSnapshotTest method mergeConflict.

@Test
public void mergeConflict() {
    WarningsSnapshot a = builder().tombstonesAbort(ImmutableSet.of(HOME), 42).build();
    WarningsSnapshot b = builder().tombstonesAbort(ImmutableSet.of(VACATION_HOME), 12).build();
    WarningsSnapshot expected = builder().tombstonesAbort(ImmutableSet.of(HOME, VACATION_HOME), 42).build();
    // validate builder to protect against empty = empty passing this test
    assertThat(a.tombstones.aborts.instances).isEqualTo(ImmutableSet.of(HOME));
    assertThat(a.tombstones.aborts.maxValue).isEqualTo(42);
    assertThat(b.tombstones.aborts.instances).isEqualTo(ImmutableSet.of(VACATION_HOME));
    assertThat(b.tombstones.aborts.maxValue).isEqualTo(12);
    assertThat(expected.tombstones.aborts.instances).isEqualTo(ImmutableSet.of(HOME, VACATION_HOME));
    assertThat(expected.tombstones.aborts.maxValue).isEqualTo(42);
    WarningsSnapshot output = a.merge(b);
    assertThat(output).isEqualTo(expected).isEqualTo(expected.merge(empty()));
    assertThat(output.merge(expected)).isEqualTo(expected);
}

Example 4 with WarningsSnapshot

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

the class WarningsSnapshotTest method mergeNonEmpty.

@Test
public void mergeNonEmpty() {
    WarningsSnapshot expected = builder().tombstonesAbort(ImmutableSet.of(HOME), 42).localReadSizeWarning(ImmutableSet.of(VACATION_HOME), 12).build();
    // validate builder to protect against empty = empty passing this test
    assertThat(expected.tombstones.aborts.instances).isEqualTo(ImmutableSet.of(HOME));
    assertThat(expected.tombstones.aborts.maxValue).isEqualTo(42);
    assertThat(expected.localReadSize.warnings.instances).isEqualTo(ImmutableSet.of(VACATION_HOME));
    assertThat(expected.localReadSize.warnings.maxValue).isEqualTo(12);
    WarningsSnapshot output = empty().merge(expected);
    assertThat(output).isEqualTo(expected).isEqualTo(expected.merge(empty()));
    assertThat(output.merge(expected)).isEqualTo(expected);
}

Example 5 with WarningsSnapshot

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

the class WarningsSnapshotTest method staticMergeEmtpy.

@Test
public void staticMergeEmtpy() {
    WarningsSnapshot result = merge(null, empty(), null, empty());
    assertThat(result).isNull();
}