public void OnJoinLog(
long leadershipTermId,
int commitPositionId,
int logSessionId,
int logStreamId,
bool ackBeforeImage,
string logChannel)
{
newActiveLogEvent = new NewActiveLogEvent(
leadershipTermId, commitPositionId, logSessionId, logStreamId, ackBeforeImage, logChannel);
}
private void CheckForReplay(CountersReader counters, int recoveryCounterId)
{
long replayTermCount = RecoveryState.GetReplayTermCount(counters, recoveryCounterId);
if (0 == replayTermCount)
{
return;
}
service.OnReplayBegin();
for (int i = 0; i < replayTermCount; i++)
{
AwaitActiveLog();
int counterId = newActiveLogEvent.commitPositionId;
leadershipTermId = CommitPos.GetLeadershipTermId(counters, counterId);
termBaseLogPosition = CommitPos.GetTermBaseLogPosition(counters, counterId); // TODO MARK
if (CommitPos.GetLeadershipTermLength(counters, counterId) > 0)
{
using (Subscription subscription = aeron.AddSubscription(newActiveLogEvent.channel, newActiveLogEvent.streamId))
{
serviceControlPublisher.AckAction(termBaseLogPosition, leadershipTermId, serviceId, ClusterAction.READY);
Image image = AwaitImage(newActiveLogEvent.sessionId, subscription);
ReadableCounter limit = new ReadableCounter(counters, counterId);
BoundedLogAdapter adapter = new BoundedLogAdapter(image, limit, this);
ConsumeImage(image, adapter);
termBaseLogPosition += image.Position();
}
}
newActiveLogEvent = null;
serviceControlPublisher.AckAction(termBaseLogPosition, leadershipTermId, serviceId, ClusterAction.REPLAY);
}
service.OnReplayEnd();
}
private void JoinActiveLog()
{
if (null != logAdapter)
{
if (!logAdapter.IsCaughtUp())
{
return;
}
logAdapter.Dispose();
logAdapter = null;
}
CountersReader counters = aeron.CountersReader();
int commitPositionId = newActiveLogEvent.commitPositionId;
if (!CommitPos.IsActive(counters, commitPositionId))
{
throw new System.InvalidOperationException("CommitPos counter not active: " + commitPositionId);
}
int logSessionId = newActiveLogEvent.sessionId;
leadershipTermId = newActiveLogEvent.leadershipTermId;
termBaseLogPosition = CommitPos.GetTermBaseLogPosition(counters, commitPositionId);
Subscription logSubscription = aeron.AddSubscription(newActiveLogEvent.channel, newActiveLogEvent.streamId);
if (newActiveLogEvent.ackBeforeImage)
{
serviceControlPublisher.AckAction(termBaseLogPosition, leadershipTermId, serviceId, ClusterAction.READY);
}
Image image = AwaitImage(logSessionId, logSubscription);
heartbeatCounter.SetOrdered(epochClock.Time());
if (!newActiveLogEvent.ackBeforeImage)
{
serviceControlPublisher.AckAction(termBaseLogPosition, leadershipTermId, serviceId, ClusterAction.READY);
}
newActiveLogEvent = null;
logAdapter = new BoundedLogAdapter(image, new ReadableCounter(counters, commitPositionId), this);
Role((ClusterRole)roleCounter.Get());
foreach (ClientSession session in sessionByIdMap.Values)
{
if (ClusterRole.Leader == role)
{
session.Connect(aeron);
}
else
{
session.Disconnect();
}
}
}
