internal void PauseSessionUntilConflictsResolved(SessionWorker worker)
{
bool unresolvedConflictsFound = false;
while (m_syncStateMachine.CurrentState == PipelineState.PausedByConflict)
{
if (ConflictManager.DoesSessionHaveUnresolvedConflicts(worker.LeftMigrationSourceid, worker.RightMigrationSourceid))
{
if (!unresolvedConflictsFound)
{
TraceManager.TraceWarning("Session paused due to blocking conflict(s); resolve conflicts for this session to resume");
unresolvedConflictsFound = true;
}
// sleep at "PausedByConflict"
Thread.Sleep(ResumeAfterConflictPollingMilliSecs);
}
else
{
if (unresolvedConflictsFound)
{
TraceManager.TraceInformation("Resuming session {0} that was previously paused by one or more conflicts", m_syncStateMachine.OwnerUniqueId);
}
break;
}
}
m_syncStateMachine.TryTransit(PipelineSyncCommand.START_NEW_TRIP);
}
internal bool TryStartNextRoundTrip(SessionWorker worker, int sleepSecs)
{
// only start another round trip for synchronization sessions
if (WorkFlowType.Frequency != Frequency.ContinuousAutomatic)
{
return(false);
}
try
{
// in case the session is requested to PAUSE
Check();
Thread.Sleep(sleepSecs);
m_syncStateMachine.TryTransit(PipelineSyncCommand.START_NEW_TRIP);
return(true);
}
catch (PauseConflictedSessionException)
{
PauseSessionUntilConflictsResolved(worker);
return(true);
}
catch (StopSessionException)
{
return(false);
}
catch (StopSingleTripException)
{
Thread.Sleep(sleepSecs);
m_syncStateMachine.TryTransit(PipelineSyncCommand.START_NEW_TRIP);
return(true);
}
}
