private static bool IsMaxActivesUnderThreshold(AmServerName serverName, Func <IADServer, int?> getMaxActiveDbsLimit, out int?maxActiveDatabases)
{
bool result = true;
int? num = null;
IADServer iadserver = Dependencies.ReplayAdObjectLookup.ServerLookup.FindServerByFqdn(serverName.Fqdn);
if (iadserver != null)
{
num = getMaxActiveDbsLimit(iadserver);
AmDatabaseStateTracker databaseStateTracker = AmSystemManager.Instance.DatabaseStateTracker;
if (databaseStateTracker != null && databaseStateTracker.IsMaxActivesExceeded(serverName, num))
{
result = false;
}
}
else
{
AmTrace.Error("Failed to find server {0}", new object[]
{
serverName
});
FailedToFindServerException ex = new FailedToFindServerException(serverName.Fqdn);
ReplayCrimsonEvents.ADObjectLookupError.LogPeriodic <string, FailedToFindServerException>(serverName.NetbiosName, DiagCore.DefaultEventSuppressionInterval, ex.Message, ex);
}
maxActiveDatabases = num;
return(result);
}
internal static bool WriteStateSyncMountStatus(AmConfig amConfig, AmDbStateInfo stateInfo, Guid databaseGuid, AmServerName activeServer, MountStatus mountStatus)
{
bool flag = false;
if (mountStatus == MountStatus.Mounted)
{
stateInfo.UpdateActiveServerAndIncrementFailoverSequenceNumber(activeServer);
stateInfo.LastMountedServer = activeServer;
stateInfo.IsAdminDismounted = false;
stateInfo.MountStatus = mountStatus;
stateInfo.IsAutomaticActionsAllowed = true;
stateInfo.LastMountedTime = DateTime.UtcNow;
flag = true;
}
else if (stateInfo.IsEntryExist)
{
stateInfo.MountStatus = mountStatus;
if (stateInfo.IsMountSucceededAtleastOnce)
{
stateInfo.UpdateActiveServerAndIncrementFailoverSequenceNumber(activeServer);
stateInfo.LastMountedServer = activeServer;
}
flag = true;
}
if (flag && AmDbAction.WriteState(amConfig, stateInfo, false))
{
AmDatabaseStateTracker databaseStateTracker = AmSystemManager.Instance.DatabaseStateTracker;
if (databaseStateTracker != null)
{
databaseStateTracker.UpdateActive(databaseGuid, activeServer);
}
}
return(flag);
}
private bool UpdateMaster(AmServerName newMasterServer, bool isMountSkipped)
{
bool flag = false;
AmServerName activeServer = base.State.ActiveServer;
if (!AmServerName.IsEqual(activeServer, newMasterServer))
{
AmTrace.Debug("Active server changed. (previous={0}, current={1})", new object[]
{
activeServer,
newMasterServer
});
flag = true;
}
base.ReportStatus(AmDbActionStatus.UpdateMasterServerInitiated);
bool flag2 = isMountSkipped ? base.WriteStateMountSkipped(newMasterServer) : base.WriteStateMountStart(newMasterServer);
if (flag2)
{
AmDatabaseStateTracker databaseStateTracker = AmSystemManager.Instance.DatabaseStateTracker;
if (databaseStateTracker != null)
{
databaseStateTracker.UpdateActive(base.DatabaseGuid, newMasterServer);
}
}
if (flag)
{
if (!activeServer.IsEmpty)
{
ReplayCrimsonEvents.ActiveServerChanged.LogGeneric(base.PrepareSubactionArgs(new object[]
{
activeServer,
newMasterServer
}));
}
else
{
ReplayCrimsonEvents.ActiveServerChanged.LogGeneric(base.PrepareSubactionArgs(new object[]
{
"<none>",
newMasterServer
}));
}
}
base.ReportStatus(AmDbActionStatus.UpdateMasterServerFinished);
return(flag);
}
private bool AttemptMountOnServer(AmServerName serverToMount, AmServerName sourceServer, MountFlags storeMountFlags, AmMountFlags amMountFlags, UnmountFlags dismountFlags, DatabaseMountDialOverride mountDialoverride, AmBcsSkipFlags skipValidationChecks, bool tryOtherHealthyServers, ref int natSkippedServersCount, ref AmAcllReturnStatus acllStatus, out Exception lastException)
{
bool flag = true;
bool fLossyMountEnabled = false;
bool isSuccess = false;
bool isAcllSuccess = false;
bool isMasterServerChanged = false;
lastException = null;
bool isSuccess2;
try
{
acllStatus = new AmAcllReturnStatus();
AmDbNodeAttemptTable dbNodeAttemptTable = AmSystemManager.Instance.DbNodeAttemptTable;
if (!base.ActionCode.IsAdminOperation && base.Config.IsIgnoreServerDebugOptionEnabled(serverToMount))
{
ReplayCrimsonEvents.OperationNotPerformedDueToDebugOption.Log <string, string, string>(serverToMount.Fqdn, AmDebugOptions.IgnoreServerFromAutomaticActions.ToString(), "Mount database");
throw new AmDbOperationException("Mount not applicable for a server when debug options are enabled");
}
bool flag2 = this.IsAcllRequired(serverToMount, sourceServer);
if (dbNodeAttemptTable.IsOkayForAction(base.Database, serverToMount, base.ActionCode))
{
if (!flag2)
{
acllStatus.NoLoss = true;
acllStatus.MountAllowed = true;
}
else
{
Stopwatch stopwatch = new Stopwatch();
stopwatch.Start();
try
{
ReplayCrimsonEvents.AcllInitiated.LogGeneric(base.PrepareSubactionArgs(new object[]
{
serverToMount,
sourceServer
}));
AmAcllReturnStatus tempAcllStatus = null;
lastException = AmHelper.HandleKnownExceptions(delegate(object param0, EventArgs param1)
{
this.RunAttemptCopyLastLogsOnServer(serverToMount, sourceServer, mountDialoverride, skipValidationChecks, 1, 15000, 15000, 15000, out fLossyMountEnabled, ref tempAcllStatus);
isAcllSuccess = true;
});
acllStatus = tempAcllStatus;
}
finally
{
stopwatch.Stop();
if (isAcllSuccess)
{
ReplayCrimsonEvents.AcllSuccess2.LogGeneric(base.PrepareSubactionArgs(new object[]
{
serverToMount,
fLossyMountEnabled,
stopwatch.Elapsed
}));
}
else
{
ReplayCrimsonEvents.AcllFailed.LogGeneric(base.PrepareSubactionArgs(new object[]
{
serverToMount,
stopwatch.Elapsed,
(lastException != null) ? lastException.Message : ReplayStrings.UnknownError
}));
}
}
if (lastException == null)
{
if (base.State.IsAdminDismounted && !base.ActionCode.IsAdminMountOperation)
{
AmTrace.Debug("Skipping mount for database '{0}' on server '{1}' since it was admin dismounted.", new object[]
{
base.DatabaseName,
serverToMount
});
if (this.UpdateMaster(serverToMount, true))
{
this.SendReplicaNotifications();
isMasterServerChanged = true;
}
isSuccess = true;
flag = false;
}
}
else
{
flag = false;
}
}
if (!flag)
{
goto IL_45C;
}
isSuccess = false;
lastException = null;
Stopwatch stopwatch2 = new Stopwatch();
stopwatch2.Start();
try
{
ReplayCrimsonEvents.DirectMountInitiated.LogGeneric(base.PrepareSubactionArgs(new object[]
{
serverToMount,
storeMountFlags,
fLossyMountEnabled,
amMountFlags
}));
lastException = AmHelper.HandleKnownExceptions(delegate(object param0, EventArgs param1)
{
TimeSpan mountTimeout = this.DetermineMountTimeout(skipValidationChecks);
this.RunMountDatabaseDirect(serverToMount, storeMountFlags, amMountFlags, fLossyMountEnabled, mountTimeout, ref isMasterServerChanged);
isSuccess = true;
});
goto IL_45C;
}
finally
{
stopwatch2.Stop();
if (isSuccess)
{
ReplayCrimsonEvents.DirectMountSuccess.LogGeneric(base.PrepareSubactionArgs(new object[]
{
serverToMount,
stopwatch2.Elapsed
}));
}
else
{
string text = (lastException != null) ? lastException.Message : ReplayStrings.UnknownError;
ReplayCrimsonEvents.DirectMountFailed.LogGeneric(base.PrepareSubactionArgs(new object[]
{
serverToMount,
stopwatch2.Elapsed,
text
}));
}
}
}
natSkippedServersCount++;
AmTrace.Debug("Mount for database '{0}' skipped server '{1}' since a recent mount operation on this node failed.", new object[]
{
base.DatabaseName,
serverToMount
});
lastException = new AmDbOperationAttempedTooSoonException(base.DatabaseName);
ReplayCrimsonEvents.MountServerSkipped.LogGeneric(base.PrepareSubactionArgs(new object[]
{
serverToMount,
lastException.Message
}));
isSuccess = false;
IL_45C:
isSuccess2 = isSuccess;
}
finally
{
if (!isMasterServerChanged)
{
AmTrace.Error("The active server for database '{0}' has not been changed, so we need to rollback the database state tracker information.", new object[]
{
base.DatabaseName
});
AmDatabaseStateTracker databaseStateTracker = AmSystemManager.Instance.DatabaseStateTracker;
if (databaseStateTracker != null)
{
databaseStateTracker.UpdateActive(base.DatabaseGuid, sourceServer);
}
}
}
return(isSuccess2);
}
