public static IClusterDB OpenClusterDatabase(ITopologyConfigurationSession taskSession, Task.TaskVerboseLoggingDelegate writeLog, Task.TaskWarningLoggingDelegate writeWarning, Task.TaskErrorLoggingDelegate writeError, Database database, bool allowNoOwningServer, out DatabaseAvailabilityGroup dag)
{
string machineName = database.Server.ToString();
try
{
ADObjectId server = database.Server;
MiniServer miniServer = taskSession.ReadMiniServer(server, DatabaseTasksHelper.MiniserverProperties);
if (miniServer == null)
{
writeWarning(Strings.ErrorDBOwningServerNotFound(database.Identity.ToString()));
if (allowNoOwningServer)
{
dag = null;
return(null);
}
writeError(new InvalidOperationException(Strings.ErrorDBOwningServerNotFound(database.Name)), ErrorCategory.InvalidOperation, database);
}
machineName = miniServer.Fqdn;
ADObjectId databaseAvailabilityGroup = miniServer.DatabaseAvailabilityGroup;
if (databaseAvailabilityGroup != null)
{
dag = DagTaskHelper.ReadDag(databaseAvailabilityGroup, taskSession);
if (dag != null)
{
AmServerName amServerName = new AmServerName(miniServer);
writeLog(Strings.OpeningClusterDatabase(amServerName.ToString()));
return(ClusterDB.Open(amServerName));
}
}
}
catch (ClusterException ex)
{
writeWarning(Strings.CouldNotConnectToClusterError(machineName, ex.Message));
}
catch (DataSourceTransientException)
{
writeWarning(Strings.CouldNotConnectToCluster(machineName));
}
catch (DataSourceOperationException)
{
writeWarning(Strings.CouldNotConnectToCluster(machineName));
}
dag = null;
return(null);
}
public void ChangeActiveServerForThirdParty(string newActiveServerName, TimeSpan lockTimeout)
{
using (AmDatabaseOperationLock.Lock(base.DatabaseGuid, AmDbLockReason.Move, new TimeSpan?(lockTimeout)))
{
if (!base.State.IsAdminDismounted)
{
throw new ChangeActiveServerException(base.DatabaseGuid, newActiveServerName, ReplayStrings.TPRChangeFailedBecauseNotDismounted);
}
AmServerName activeServer = base.State.ActiveServer;
AmServerName amServerName = new AmServerName(newActiveServerName);
if (activeServer.Equals(amServerName))
{
throw new ChangeActiveServerException(base.DatabaseGuid, newActiveServerName, ReplayStrings.TPRChangeFailedBecauseAlreadyActive(activeServer.ToString()));
}
IAmBcsErrorLogger errorLogger = new AmBcsSingleCopyFailureLogger();
AmBcsServerChecks checks = AmBcsServerChecks.DebugOptionDisabled | AmBcsServerChecks.ClusterNodeUp | AmBcsServerChecks.DatacenterActivationModeStarted | AmBcsServerChecks.AutoActivationAllowed;
LocalizedString empty = LocalizedString.Empty;
AmBcsServerValidation amBcsServerValidation = new AmBcsServerValidation(amServerName, activeServer, base.Database, base.Config, errorLogger, null);
if (!amBcsServerValidation.RunChecks(checks, ref empty))
{
AmTrace.Error("ChangeActiveServerForThirdParty: DB {0}: ValidateServer() returned error: {1}", new object[]
{
base.DatabaseName,
empty
});
throw new ChangeActiveServerException(base.DatabaseGuid, newActiveServerName, ReplayStrings.TPRChangeFailedServerValidation(base.DatabaseName, newActiveServerName, empty));
}
base.WriteStateMountSkipped(amServerName);
this.UpdateAdProperties(true, activeServer);
ReplayCrimsonEvents.TPRChangeActiveServerSucceeded.Log <string, Guid, AmServerName, AmServerName>(base.DatabaseName, base.DatabaseGuid, activeServer, amServerName);
}
}
public static HungNodesInfo GetNodesHungInClusDbUpdate()
{
HungNodesInfo result = null;
TimeSpan timeout = TimeSpan.FromSeconds((double)RegistryParameters.OpenClusterTimeoutInSec);
using (AmCluster amCluster = AmCluster.OpenByName(AmServerName.LocalComputerName, timeout, string.Empty))
{
int num = 0;
AmServerName currentGumLockOwnerInfo = amCluster.GetCurrentGumLockOwnerInfo(out num);
if (!AmServerName.IsNullOrEmpty(currentGumLockOwnerInfo))
{
Thread.Sleep(RegistryParameters.ClusdbHungNodesConfirmDurationInMSec);
string context = string.Format("GUM={0}", num);
using (AmCluster amCluster2 = AmCluster.OpenByName(currentGumLockOwnerInfo, timeout, context))
{
using (IAmClusterNode amClusterNode = amCluster2.OpenNode(currentGumLockOwnerInfo))
{
int num2 = 0;
long hungNodesMask = amClusterNode.GetHungNodesMask(out num2);
if (num != num2)
{
throw new HungDetectionGumIdChangedException(num, num2, currentGumLockOwnerInfo.ToString(), hungNodesMask);
}
result = new HungNodesInfo(num, currentGumLockOwnerInfo, hungNodesMask);
}
}
}
}
return(result);
}