private void CheckClusterStateForDagServerRemoval()
{
this.m_output.AppendLogMessage("CheckClusterStateForDagServerRemoval entered. m_removeNode={0}, m_destroyCluster={1}", new object[]
{
this.m_removeNode,
this.m_destroyCluster
});
try
{
this.m_clusDag = AmCluster.OpenDagClus(this.m_dag);
}
catch (AmClusterException ex)
{
this.m_output.AppendLogMessage("Trying to open the cluster on the servers in the DAG '{0}' failed with exception {1}", new object[]
{
this.m_dagName,
ex
});
this.m_output.WriteErrorSimple(new DagTaskRemoveDagServerMustHaveQuorumException(this.m_dagName));
}
using (DumpClusterTopology dumpClusterTopology = new DumpClusterTopology(this.m_clusDag, this.m_output))
{
dumpClusterTopology.Dump();
}
this.m_output.AppendLogMessage("Trying to open the node on the cluster.", new object[0]);
IAmClusterNode amClusterNode = null;
try
{
amClusterNode = this.m_clusDag.OpenNode(this.m_mailboxAmServerName);
}
catch (ClusterException ex2)
{
this.m_output.AppendLogMessage("OpenNode threw an exception. It's probably because the server is no longer clustered. Proceeding with -configurationonly.", new object[0]);
this.m_output.AppendLogMessage("For the records, the exception was {0}.", new object[]
{
ex2
});
this.m_configurationOnly = true;
this.m_mailboxServerIsDown = true;
return;
}
using (amClusterNode)
{
AmNodeState state = amClusterNode.GetState(false);
this.m_output.AppendLogMessage("Node.GetState( {0} ) reports that it is {1}.", new object[]
{
this.m_mailboxAmServerName,
state
});
if (!AmClusterNode.IsNodeUp(state))
{
this.m_mailboxServerIsDown = true;
}
}
if (!this.m_skipDagValidation)
{
try
{
DagTaskHelper.ValidateDagClusterMembership(this.m_output, this.m_dag, this.m_clusDag, this.m_mailboxAmServerName);
}
catch (ClusterException ex3)
{
this.DagTrace("ValidateDagClusterMembership() for the mailbox server failed possibly with error {0}, ex = {1}. This is OK.", new object[]
{
LocalizedException.GenerateErrorCode(ex3.InnerException).ToString(),
ex3.Message
});
}
}
int num = this.m_clusDag.EnumerateNodeNames().Count <AmServerName>();
this.DagTrace(string.Format("There are {0} nodes in the cluster.", num), new object[0]);
if (num == 1)
{
this.m_destroyCluster = true;
}
else
{
this.m_removeNode = true;
}
bool destroyCluster = this.m_destroyCluster;
this.ReopenClusterIfNecessary();
if ((this.m_removeNode || this.m_destroyCluster) && this.m_dag.DatacenterActivationMode != DatacenterActivationModeOption.Off)
{
DagTaskHelper.CheckDagCanBeActivatedInDatacenter(this.m_output, this.m_dag, (ADObjectId)this.m_mailboxServer.Identity, (ITopologyConfigurationSession)base.DataSession);
}
this.DagTrace("CheckClusterStateForDagServerRemoval left. m_removeNode={0}, m_destroyCluster={1}.", new object[]
{
this.m_removeNode,
this.m_destroyCluster
});
}
protected override void InternalValidate()
{
TaskLogger.LogEnter();
base.InternalValidate();
this.m_output = new HaTaskOutputHelper("set-databaseavailabilitygroup", new Task.TaskErrorLoggingDelegate(base.WriteError), new Task.TaskWarningLoggingDelegate(this.WriteWarning), new Task.TaskVerboseLoggingDelegate(base.WriteVerbose), new Task.TaskProgressLoggingDelegate(base.WriteProgress), this.GetHashCode());
this.m_dag = this.DataObject;
this.m_skipDagValidation = this.SkipDagValidation;
DagTaskHelper.VerifyDagAndServersAreWithinScopes <DatabaseAvailabilityGroup>(this, this.m_dag, true);
if (this.DatabaseAvailabilityGroupIpAddresses != null)
{
if (!this.m_dag.IsDagEmpty())
{
this.PrepareServersInDagIfRequired();
foreach (AmServerName amServerName in this.m_serverNamesInDag)
{
DagTaskHelper.ValidateIPAddressList(this.m_output, amServerName.NetbiosName, this.DatabaseAvailabilityGroupIpAddresses, this.m_dag.Name);
DagTaskHelper.ValidateIPAddressList(this.m_output, amServerName.Fqdn, this.DatabaseAvailabilityGroupIpAddresses, this.m_dag.Name);
}
}
foreach (IPAddress ipaddress in this.DatabaseAvailabilityGroupIpAddresses)
{
if (ipaddress.AddressFamily == AddressFamily.InterNetworkV6)
{
this.m_output.WriteErrorSimple(new DagTaskDagIpAddressesMustBeIpv4Exception());
}
}
}
this.m_useAlternateWitnessServer = (this.m_dag.AlternateWitnessServer != null && DagTaskHelper.IsDagFailedOverToOtherSite(this.m_output, this.m_dag));
if (!this.m_useAlternateWitnessServer)
{
this.m_fsw = new FileShareWitness((ITopologyConfigurationSession)base.DataSession, this.m_dag.Name, this.WitnessServer ?? this.m_dag.WitnessServer, this.WitnessDirectory ?? this.m_dag.WitnessDirectory);
try
{
this.m_fsw.Initialize();
}
catch (LocalizedException error)
{
this.m_output.WriteErrorSimple(error);
}
this.CheckFsw(this.m_fsw.WitnessServerFqdn);
}
if (this.AlternateWitnessServer != null || this.AlternateWitnessDirectory != null || (this.m_dag.AlternateWitnessServer != null && this.m_dag.AlternateWitnessDirectory != null && !this.m_alternateWitnessServerParameterSpecified) || this.m_useAlternateWitnessServer)
{
this.m_afsw = new FileShareWitness((ITopologyConfigurationSession)base.DataSession, this.m_dag.Name, this.AlternateWitnessServer ?? this.m_dag.AlternateWitnessServer, this.AlternateWitnessDirectory ?? this.m_dag.AlternateWitnessDirectory);
try
{
this.m_afsw.Initialize();
}
catch (LocalizedException error2)
{
this.m_output.WriteErrorSimple(error2);
}
if (this.m_fsw != null && SharedHelper.StringIEquals(this.m_afsw.WitnessServerFqdn, this.m_fsw.WitnessServerFqdn) && this.m_fsw.WitnessDirectory != this.m_afsw.WitnessDirectory)
{
this.m_output.WriteErrorSimple(new DagFswAndAlternateFswOnSameWitnessServerButPointToDifferentDirectoriesException(this.m_fsw.WitnessServer.ToString(), this.m_fsw.WitnessDirectory.ToString(), this.m_afsw.WitnessDirectory.ToString()));
}
this.CheckFsw(this.m_afsw.WitnessServerFqdn);
}
Dictionary <AmServerName, Server> startedServers = new Dictionary <AmServerName, Server>();
DatabaseAvailabilityGroupAction.ResolveServers(this.m_output, this.m_dag, this.m_allServers, startedServers, this.m_stoppedServers);
if (!this.m_dag.IsDagEmpty())
{
this.PrepareServersInDagIfRequired();
List <AmServerName> list = new List <AmServerName>(this.m_stoppedServers.Count);
IEnumerable <AmServerName> serversInCluster = null;
foreach (Server server in this.m_stoppedServers.Values)
{
list.Add(new AmServerName(server.Id));
}
using (AmCluster amCluster = AmCluster.OpenDagClus(this.m_dag))
{
serversInCluster = amCluster.EnumerateNodeNames();
}
if (!this.m_skipDagValidation)
{
DagTaskHelper.CompareDagClusterMembership(this.m_output, this.m_dag.Name, this.m_serverNamesInDag, serversInCluster, list);
}
}
if (base.Fields["DatacenterActivationMode"] != null && this.DatacenterActivationMode != DatacenterActivationModeOption.Off)
{
DagTaskHelper.CheckDagCanBeActivatedInDatacenter(this.m_output, this.m_dag, null, (ITopologyConfigurationSession)base.DataSession);
}
if (base.Fields["DatacenterActivationMode"] != null && this.DatacenterActivationMode == DatacenterActivationModeOption.Off)
{
this.DataObject.StartedMailboxServers = null;
this.DataObject.StoppedMailboxServers = null;
}
TaskLogger.LogExit();
}
