Examples with RecordingLog io.aeron.cluster.client.RecordingLog used on opensource projects

Example 1 with RecordingLog

use of io.aeron.cluster.client.RecordingLog in project aeron by real-logic.

the class RecordingLogTest method shouldAppendAndThenCommitLogPosition.

@Test
public void shouldAppendAndThenCommitLogPosition() {
    final long leadershipTermId = 1111L;
    final long termBaseLogPosition = 2222L;
    final long timestamp = 3333L;
    final int votedForMemberId = 1;
    final RecordingLog recordingLog = new RecordingLog(TEMP_DIR);
    recordingLog.appendTerm(leadershipTermId, termBaseLogPosition, timestamp, votedForMemberId);
    final long newLogPosition = 7777L;
    recordingLog.commitLeadershipLogPosition(leadershipTermId, newLogPosition);
    final RecordingLog recordingLogTwo = new RecordingLog(TEMP_DIR);
    assertThat(recordingLogTwo.entries().size(), is(1));
    final RecordingLog.Entry actualEntry = recordingLogTwo.entries().get(0);
    assertEquals(newLogPosition, actualEntry.termBaseLogPosition);
}

Example 2 with RecordingLog

use of io.aeron.cluster.client.RecordingLog in project aeron by real-logic.

the class SequencerAgent method awaitCatchUp.

private void awaitCatchUp() {
    if (null != recordingCatchUp) {
        while (!recordingCatchUp.isCaughtUp()) {
            idle();
        }
        recordingCatchUp.close();
        final int streamId = ctx.replayStreamId();
        final ChannelUri channelUri = ChannelUri.parse(ctx.replayChannel());
        final long startPosition = recordingCatchUp.fromPosition();
        final long stopPosition = recordingCatchUp.caughtUpPosition();
        final long length = stopPosition - startPosition;
        final int lastStepIndex = recoveryPlan.termSteps.size() - 1;
        final RecordingLog.ReplayStep lastStep = recoveryPlan.termSteps.get(lastStepIndex);
        final RecordingLog.Entry entry = lastStep.entry;
        // TODO: fix up recordingLog entry for last step for on disk in case we recover again
        termBaseLogPosition = entry.termBaseLogPosition;
        leadershipTermId = entry.leadershipTermId;
        final int logSessionId = lastStepIndex + 1;
        channelUri.put(CommonContext.SESSION_ID_PARAM_NAME, Integer.toString(logSessionId));
        final String channel = channelUri.toString();
        final long recordingId = recordingCatchUp.recordingIdToExtend();
        try (Counter counter = CommitPos.allocate(aeron, tempBuffer, leadershipTermId, termBaseLogPosition, length)) {
            serviceAckCount = 0;
            logAdapter = null;
            if (length > 0) {
                try (Subscription subscription = aeron.addSubscription(channel, streamId)) {
                    serviceControlPublisher.joinLog(leadershipTermId, counter.id(), logSessionId, streamId, channel);
                    awaitServiceAcks();
                    final int replaySessionId = (int) archive.startReplay(recordingId, startPosition, length, channel, streamId);
                    final Image image = awaitImage(replaySessionId, subscription);
                    serviceAckCount = 0;
                    replayTerm(image, stopPosition, counter);
                    final long termPosition = image.position();
                    if (lastStep.entry.termPosition < termPosition) {
                        recordingLog.commitLeadershipTermPosition(leadershipTermId, termPosition);
                    }
                    termBaseLogPosition = entry.termBaseLogPosition + termPosition;
                }
            }
        }
        recordingCatchUp = null;
    }
}

Example 3 with RecordingLog

use of io.aeron.cluster.client.RecordingLog in project aeron by real-logic.

the class RecordingLogTest method shouldCreateNewIndex.

@Test
public void shouldCreateNewIndex() {
    final RecordingLog recordingLog = new RecordingLog(TEMP_DIR);
    assertThat(recordingLog.entries().size(), is(0));
}

Example 4 with RecordingLog

use of io.aeron.cluster.client.RecordingLog in project aeron by real-logic.

the class RecordingLogTest method shouldTombstoneEntry.

@Test
public void shouldTombstoneEntry() {
    final RecordingLog recordingLog = new RecordingLog(TEMP_DIR);
    final RecordingLog.Entry entryOne = new RecordingLog.Entry(NULL_VALUE, 3, 2, NULL_POSITION, 4, 0, ENTRY_TYPE_TERM, 0);
    recordingLog.appendTerm(entryOne.leadershipTermId, entryOne.termBaseLogPosition, entryOne.timestamp, entryOne.votedForMemberId);
    final RecordingLog.Entry entryTwo = new RecordingLog.Entry(NULL_VALUE, 4, 3, NULL_POSITION, 5, 0, ENTRY_TYPE_TERM, 0);
    recordingLog.appendTerm(entryTwo.leadershipTermId, entryTwo.termBaseLogPosition, entryTwo.timestamp, entryTwo.votedForMemberId);
    recordingLog.tombstoneEntry(entryTwo.leadershipTermId, recordingLog.nextEntryIndex() - 1);
    final RecordingLog recordingLogTwo = new RecordingLog(TEMP_DIR);
    assertThat(recordingLogTwo.entries().size(), is(1));
    assertThat(recordingLogTwo.nextEntryIndex(), is(2));
}

Example 5 with RecordingLog

use of io.aeron.cluster.client.RecordingLog in project aeron by real-logic.

the class RecordingLogTest method shouldAppendAndThenReloadLatestSnapshot.

@Test
public void shouldAppendAndThenReloadLatestSnapshot() {
    final RecordingLog recordingLog = new RecordingLog(TEMP_DIR);
    final RecordingLog.Entry entry = new RecordingLog.Entry(1, 3, 2, 777, 4, NULL_VALUE, ENTRY_TYPE_SNAPSHOT, 0);
    recordingLog.appendSnapshot(entry.recordingId, entry.leadershipTermId, entry.termBaseLogPosition, 777, entry.timestamp);
    final RecordingLog recordingLogTwo = new RecordingLog(TEMP_DIR);
    assertThat(recordingLogTwo.entries().size(), is(1));
    final RecordingLog.Entry snapshot = recordingLogTwo.getLatestSnapshot();
    assertEquals(entry.toString(), snapshot.toString());
}