private List <AmServerName> DetermineServersToContact()
{
Guid guid = this.Database.Guid;
IADDatabase db = this.Database;
IADDatabaseCopy[] databaseCopies = AmBestCopySelectionHelper.GetDatabaseCopies(guid, ref db);
if (db != null)
{
this.Database = db;
}
AmConfig amConfig = AmSystemManager.Instance.Config;
if (amConfig.IsUnknown)
{
AmTrace.Error("AmMultiNodeRpcNotifier: DB {0}: Invalid AM configuration", new object[]
{
db.Name
});
throw new AmInvalidConfiguration(amConfig.LastError ?? string.Empty);
}
IAmBcsErrorLogger errorLogger = new AmBcsSingleCopyFailureLogger();
AmBcsServerChecks checksToRun = AmBcsServerChecks.ClusterNodeUp;
if (this.ActionCode.IsAutomaticOperation)
{
checksToRun |= AmBcsServerChecks.DebugOptionDisabled;
}
IEnumerable <AmServerName> source = from dbCopy in databaseCopies
where this.ValidateServer(new AmServerName(dbCopy.HostServerName), db, amConfig, checksToRun, errorLogger)
select new AmServerName(dbCopy.HostServerName);
return(source.ToList <AmServerName>());
}
public static bool HasDatabaseBeenMounted(Guid dbGuid, AmConfig amConfig)
{
AmServerName amServerName;
AmServerName amServerName2;
return(AmBestCopySelectionHelper.HasDatabaseBeenMounted(dbGuid, amConfig, out amServerName, out amServerName2));
}
public static bool IsActivationDisabled(AmServerName srv)
{
Exception ex;
IADServer miniServer = AmBestCopySelectionHelper.GetMiniServer(srv, out ex);
return(AmBestCopySelectionHelper.IsActivationDisabled(miniServer));
}
// Token: 0x060006F0 RID: 1776 RVA: 0x00020F6C File Offset: 0x0001F16C
private void InitializeBestCopySelector()
{
this.m_bcsWatch.Start();
try
{
bool flag = this.m_statusFetcher == null;
if (this.m_bcsContext.ShouldLogSubactionEvent)
{
ReplayCrimsonEvents.BcsInitiated.LogGeneric(this.m_bcsContext.PrepareSubaction(new object[]
{
this.BestCopySelectionType,
flag
}));
}
bool fDbNeverMounted = false;
this.m_perfTracker.RunTimedOperation(BcsOperation.HasDatabaseBeenMounted, delegate
{
fDbNeverMounted = !AmBestCopySelectionHelper.HasDatabaseBeenMounted(this.m_bcsContext.DatabaseGuid, this.m_amConfig);
this.m_bcsContext.DatabaseNeverMounted = fDbNeverMounted;
});
Dictionary <AmServerName, RpcHealthStateInfo[]> stateInfoMap = null;
this.m_bcsContext.StatusTable = this.ConstructBcsStatusTable(fDbNeverMounted, flag, out stateInfoMap);
this.m_bcsContext.ComponentStateWrapper = new ComponentStateWrapper(this.m_bcsContext.Database.Name, this.m_bcsContext.InitiatingComponent, this.m_bcsContext.SourceServerName, this.m_bcsContext.ActionCode, stateInfoMap);
this.m_bcsContext.SortCopiesByActivationPreference = this.ShouldDatabaseCopiesBeSortedByPreference();
this.m_bestCopySelector = new AmBestCopySelector(this.m_bcsContext);
}
finally
{
this.m_bcsWatch.Stop();
this.m_perfTracker.RecordDuration(BcsOperation.BcsOverall, this.m_bcsWatch.Elapsed);
this.m_perfTracker.LogEvent();
}
}
// Token: 0x06000694 RID: 1684 RVA: 0x00020039 File Offset: 0x0001E239
private bool IsActivationEnabled(ref LocalizedString error)
{
if (AmBestCopySelectionHelper.IsActivationDisabled(this.TargetServer))
{
error = ReplayStrings.AmBcsTargetServerActivationDisabled(this.TargetServer.Fqdn);
this.ReportCopyStatusFailure(AmBcsChecks.ActivationEnabled, error);
return(false);
}
return(true);
}
// Token: 0x0600081E RID: 2078 RVA: 0x000276B4 File Offset: 0x000258B4
internal static ServerVersion GetServerVersion(AmServerName serverName)
{
Exception ex;
IADServer miniServer = AmBestCopySelectionHelper.GetMiniServer(serverName, out ex);
if (miniServer == null)
{
throw ex;
}
return(miniServer.AdminDisplayVersion);
}
// Token: 0x06000699 RID: 1689 RVA: 0x00020394 File Offset: 0x0001E594
internal bool UpdateActiveIfMaxActivesNotExceededPreferredLimit(ref LocalizedString error)
{
int?num;
if (!AmBestCopySelectionHelper.UpdateActiveIfMaxActivesNotExceeded(this.DbGuid, this.TargetServer, (IADServer server) => server.MaximumPreferredActiveDatabases, out num))
{
error = ReplayStrings.AmBcsTargetServerPreferredMaxActivesReached(this.TargetServer.Fqdn, (num != null) ? num.Value.ToString() : "<null>");
this.ReportCopyStatusFailure(AmBcsChecks.MaxActivesUnderPreferredLimit, error);
return(false);
}
return(true);
}
// Token: 0x06000697 RID: 1687 RVA: 0x00020294 File Offset: 0x0001E494
internal bool IsMaxActivesUnderPreferredLimit(ref LocalizedString error)
{
int?num;
if (!AmBestCopySelectionHelper.IsMaxActivesUnderPreferredLimit(this.TargetServer, out num))
{
error = ReplayStrings.AmBcsTargetServerPreferredMaxActivesReached(this.TargetServer.Fqdn, (num != null) ? num.Value.ToString() : "<null>");
this.ReportCopyStatusFailure(AmBcsChecks.MaxActivesUnderPreferredLimit, error);
return(false);
}
return(true);
}
protected virtual Dictionary <AmServerName, int> BuildActivationPreferenceCache(Guid dbGuid, ref IADDatabase database)
{
IADDatabaseCopy[] databaseCopies = AmBestCopySelectionHelper.GetDatabaseCopies(dbGuid, ref database);
Dictionary <AmServerName, int> dictionary = new Dictionary <AmServerName, int>(databaseCopies.Length);
foreach (IADDatabaseCopy iaddatabaseCopy in databaseCopies)
{
AmServerName key = new AmServerName(iaddatabaseCopy.HostServerName);
dictionary[key] = iaddatabaseCopy.ActivationPreference;
}
return(dictionary);
}
// Token: 0x060006D7 RID: 1751 RVA: 0x00020C1C File Offset: 0x0001EE1C
private bool IsAutoActivationAllowed(ref LocalizedString error)
{
if (this.ServerToCheck.Equals(this.SourceServer))
{
AmTrace.Debug("AmBcsServerValidation: Skipping 'IsAutoActivationAllowed' check since source == target. TargetServer: {0}", new object[]
{
this.ServerToCheck
});
return(true);
}
Exception ex;
IADServer miniServer = AmBestCopySelectionHelper.GetMiniServer(this.ServerToCheck, out ex);
if (miniServer == null)
{
AmTrace.Error("AmBcsServerValidation: Rejecting server '{0}' for DB '{1}' because target MiniServer could not be read.", new object[]
{
this.ServerToCheck,
this.Database.Name
});
error = ReplayStrings.AmBcsTargetServerADError(this.ServerToCheck.Fqdn, ex.ToString());
this.ReportServerBlocked(AmBcsServerChecks.AutoActivationAllowed, error);
return(false);
}
IADServer miniServer2 = AmBestCopySelectionHelper.GetMiniServer(this.SourceServer, out ex);
if (miniServer2 == null)
{
AmTrace.Error("AmBcsServerValidation: Rejecting server '{0}' for DB '{1}' because source MiniServer '{2}' could not be read.", new object[]
{
this.ServerToCheck,
this.Database.Name,
this.SourceServer
});
error = ReplayStrings.AmBcsSourceServerADError(this.SourceServer.Fqdn, ex.ToString());
this.ReportServerBlocked(AmBcsServerChecks.AutoActivationAllowed, error);
return(false);
}
if (!AmBestCopySelectionHelper.IsAutoActivationAllowed(miniServer2, miniServer, out error))
{
this.ReportServerBlocked(AmBcsServerChecks.AutoActivationAllowed, error);
return(false);
}
return(true);
}
// Token: 0x060006F3 RID: 1779 RVA: 0x00021310 File Offset: 0x0001F510
private void PopulateDatabaseCopiesIfNecessary()
{
if (this.m_dbCopies != null)
{
return;
}
IADDatabaseCopy[] dbCopies = null;
Guid dbGuid = this.m_bcsContext.DatabaseGuid;
IADDatabase database = this.m_bcsContext.Database;
this.m_perfTracker.RunTimedOperation(BcsOperation.GetDatabaseCopies, delegate
{
dbCopies = AmBestCopySelectionHelper.GetDatabaseCopies(dbGuid, ref database);
});
if (database != null)
{
this.m_bcsContext.Database = database;
}
this.m_dbCopies = dbCopies;
}
// Token: 0x060006F4 RID: 1780 RVA: 0x00021394 File Offset: 0x0001F594
private void PopulateMiniServersForDatabaseCopies()
{
if (this.m_miniServers != null)
{
return;
}
this.PopulateDatabaseCopiesIfNecessary();
List <IADServer> list = new List <IADServer>(this.m_dbCopies.Length);
Exception ex = null;
foreach (IADDatabaseCopy iaddatabaseCopy in this.m_dbCopies)
{
AmServerName serverName = new AmServerName(iaddatabaseCopy.HostServerName);
IADServer miniServer = AmBestCopySelectionHelper.GetMiniServer(serverName, out ex);
if (miniServer == null)
{
throw ex;
}
list.Add(miniServer);
}
this.m_miniServers = list;
}
// Token: 0x060006D6 RID: 1750 RVA: 0x00020B4C File Offset: 0x0001ED4C
private bool IsServerStartedForDACMode(ref LocalizedString error)
{
string adError = null;
IADDatabaseAvailabilityGroup iaddatabaseAvailabilityGroup;
if (this.DagConfig != null)
{
iaddatabaseAvailabilityGroup = this.DagConfig.Dag;
if (iaddatabaseAvailabilityGroup == null)
{
CouldNotFindDagObjectForServer couldNotFindDagObjectForServer = new CouldNotFindDagObjectForServer(this.ServerToCheck.NetbiosName);
adError = couldNotFindDagObjectForServer.Message;
}
}
else
{
iaddatabaseAvailabilityGroup = AmBestCopySelectionHelper.GetLocalServerDatabaseAvailabilityGroup(out adError);
}
if (iaddatabaseAvailabilityGroup == null)
{
error = ReplayStrings.AmBcsDagNotFoundInAd(this.ServerToCheck.Fqdn, adError);
this.ReportServerBlocked(AmBcsServerChecks.DatacenterActivationModeStarted, error);
return(false);
}
if (AmBestCopySelectionHelper.IsServerInDacAndStopped(iaddatabaseAvailabilityGroup, this.ServerToCheck))
{
AmTrace.Error("AmBcsServerValidation: Rejecting server '{0}' for DB '{1}' since it is stopped in the DAC mode.", new object[]
{
this.ServerToCheck,
this.Database.Name
});
error = ReplayStrings.AmBcsTargetServerIsStoppedOnDAC(this.ServerToCheck.Fqdn);
this.ReportServerBlocked(AmBcsServerChecks.DatacenterActivationModeStarted, error);
return(false);
}
return(true);
}
public static bool IsMaxActivesUnderPreferredLimit(AmServerName serverName, out int?maxActiveDatabases)
{
return(AmBestCopySelectionHelper.IsMaxActivesUnderThreshold(serverName, (IADServer server) => server.MaximumPreferredActiveDatabases, out maxActiveDatabases));
}
// Token: 0x06000728 RID: 1832 RVA: 0x00022C0C File Offset: 0x00020E0C
public AmServerName FindNextBestCopy()
{
AmServerName amServerName = null;
LocalizedString error = LocalizedString.Empty;
bool flag = false;
AmBcsChecks amBcsChecks = AmBcsChecks.None;
if (!this.m_fInitialized)
{
this.m_bcsWatch.Start();
try
{
if (this.m_bcsContext.ShouldLogSubactionEvent)
{
ReplayCrimsonEvents.BcsInitiated.LogGeneric(this.m_bcsContext.PrepareSubaction(new object[]
{
this.BestCopySelectionType,
false
}));
}
bool fDbNeverMounted = false;
this.m_perfTracker.RunTimedOperation(BcsOperation.HasDatabaseBeenMounted, delegate
{
fDbNeverMounted = !AmBestCopySelectionHelper.HasDatabaseBeenMounted(this.m_bcsContext.DatabaseGuid, this.m_amConfig);
this.m_bcsContext.DatabaseNeverMounted = fDbNeverMounted;
});
AmBcsServerValidation serverValidator = new AmBcsServerValidation(this.m_targetServerName, this.m_bcsContext.SourceServerName, this.m_bcsContext.Database, this.m_amConfig, this.m_bcsContext.ErrorLogger, null);
AmBcsServerChecks serverChecks = AmBcsServerValidation.GetServerValidationChecks(this.m_bcsContext.ActionCode, true);
bool serverChecksPassed = false;
this.m_perfTracker.RunTimedOperation(BcsOperation.DetermineServersToContact, delegate
{
serverChecksPassed = serverValidator.RunChecks(serverChecks, ref error);
});
if (!serverChecksPassed)
{
goto IL_39C;
}
if (!fDbNeverMounted && !this.m_bcsContext.ActionCode.IsMountOrRemountOperation)
{
List <AmServerName> serversToContact = new List <AmServerName>(2);
serversToContact.Add(this.m_targetServerName);
if (!AmServerName.IsEqual(this.m_bcsContext.SourceServerName, this.m_targetServerName) && (this.m_bcsContext.SkipValidationChecks & AmBcsSkipFlags.SkipActiveCopyChecks) == AmBcsSkipFlags.None)
{
serversToContact.Add(this.m_bcsContext.SourceServerName);
}
this.m_perfTracker.RunTimedOperation(BcsOperation.GetCopyStatusRpc, delegate
{
this.ConstructBcsStatusTable(serversToContact);
});
AmBcsServerFailureLogger amBcsServerFailureLogger = this.m_bcsContext.ErrorLogger as AmBcsServerFailureLogger;
string concatenatedErrorString = amBcsServerFailureLogger.GetConcatenatedErrorString();
if (concatenatedErrorString != null)
{
error = new LocalizedString(concatenatedErrorString);
goto IL_39C;
}
}
this.m_fInitialized = true;
}
finally
{
this.m_bcsWatch.Stop();
this.m_perfTracker.RecordDuration(BcsOperation.BcsOverall, this.m_bcsWatch.Elapsed);
this.m_perfTracker.LogEvent();
}
}
if (this.TargetHasBeenTried(ref error))
{
this.m_bcsContext.ErrorLogger.ReportServerFailure(this.m_targetServerName, "CopyHasBeenTriedCheck", error, false);
}
else
{
if (this.m_bcsContext.ActionCode.IsMountOrRemountOperation)
{
amBcsChecks = AmBcsChecks.None;
AmTrace.Debug("BCS: FindNextBestCopy: Skipping validation checks for Database '{0}' on server '{1}'.", new object[]
{
this.m_bcsContext.GetDatabaseNameOrGuid(),
this.m_targetServerName
});
}
else if (this.m_bcsContext.DatabaseNeverMounted)
{
amBcsChecks = AmBcsChecks.IsPassiveCopy;
AmTrace.Debug("BCS: FindNextBestCopy: Database '{0}' has never been mounted. Running non-status related checks.", new object[]
{
this.m_bcsContext.GetDatabaseNameOrGuid()
});
}
else
{
if (!this.CheckActiveForMove(ref error))
{
goto IL_39C;
}
amBcsChecks = (AmBcsChecks.IsHealthyOrDisconnected | AmBcsChecks.IsCatalogStatusHealthy | AmBcsChecks.CopyQueueLength | AmBcsChecks.ReplayQueueLength | AmBcsChecks.IsPassiveCopy | AmBcsChecks.IsSeedingSource | AmBcsChecks.TotalQueueLengthMaxAllowed | AmBcsChecks.MaxActivesUnderPreferredLimit);
}
RpcDatabaseCopyStatus2 copyStatus = null;
this.m_bcsContext.StatusTable.TryGetValue(this.m_targetServerName, out copyStatus);
AmBcsCopyValidation amBcsCopyValidation = new AmBcsCopyValidation(this.m_bcsContext.DatabaseGuid, this.m_bcsContext.GetDatabaseNameOrGuid(), amBcsChecks, this.m_bcsContext.SourceServerName, this.m_targetServerName, copyStatus, this.m_bcsContext.ErrorLogger, this.m_bcsContext.SkipValidationChecks, this.m_bcsContext.ComponentStateWrapper);
flag = amBcsCopyValidation.RunChecks(ref error);
amBcsChecks = amBcsCopyValidation.CompletedChecks;
}
IL_39C:
if (flag)
{
AmTrace.Info("BCS: FindNextBestCopy: DatabaseCopy: '{0}\\{1}' passed validation checks.", new object[]
{
this.m_bcsContext.GetDatabaseNameOrGuid(),
this.m_targetServerName.NetbiosName
});
amServerName = this.m_targetServerName;
this.m_serverAlreadyTried = this.m_targetServerName;
ReplayCrimsonEvents.BcsDbMoveChecksPassed.Log <string, Guid, AmServerName, AmBcsChecks>(this.m_bcsContext.GetDatabaseNameOrGuid(), this.m_bcsContext.DatabaseGuid, amServerName, amBcsChecks);
}
else
{
AmTrace.Error("BCS: FindNextBestCopy: DatabaseCopy: '{0}\\{1}'. Checks returned error: {2}", new object[]
{
this.m_bcsContext.GetDatabaseNameOrGuid(),
this.m_targetServerName.NetbiosName,
error
});
AmBcsServerFailureLogger amBcsServerFailureLogger2 = this.m_bcsContext.ErrorLogger as AmBcsServerFailureLogger;
string concatenatedErrorString2 = amBcsServerFailureLogger2.GetConcatenatedErrorString();
this.m_lastException = new AmBcsSingleCopyValidationException(concatenatedErrorString2);
ReplayCrimsonEvents.BcsDbMoveChecksFailed.Log <string, Guid, AmServerName, AmBcsChecks, LocalizedString>(this.m_bcsContext.GetDatabaseNameOrGuid(), this.m_bcsContext.DatabaseGuid, this.m_targetServerName, amBcsChecks, error);
}
return(amServerName);
}
internal void Analyze()
{
this.OwningServer = new AmServerName(this.Database.Server.Name);
this.ActiveServer = this.StateInfo.ActiveServer;
if (AmServerName.IsNullOrEmpty(this.ActiveServer))
{
this.ActiveServer = this.OwningServer;
}
if (!AmServerName.IsEqual(this.ActiveServer, this.OwningServer))
{
this.IsAdPropertiesOutOfSync = true;
}
if (this.Database.Servers.Length > 1 && AmBestCopySelectionHelper.IsActivationDisabled(this.ActiveServer))
{
this.IsActiveOnDisabledServer = true;
}
this.MisMountedServerList = new List <AmServerName>();
foreach (AmServerName amServerName in this.StoreStatus.Keys)
{
if ((this.StoreStatus[amServerName] & MdbStatusFlags.Online) == MdbStatusFlags.Online)
{
if (AmServerName.IsEqual(amServerName, this.ActiveServer))
{
this.IsMountedOnActive = true;
}
else
{
this.MisMountedServerList.Add(amServerName);
}
}
else if ((this.StoreStatus[amServerName] & MdbStatusFlags.MountInProgress) == MdbStatusFlags.MountInProgress && AmServerName.IsEqual(amServerName, this.ActiveServer))
{
this.IsMountedOnActive = true;
}
}
this.IsMismounted = (this.MisMountedServerList != null && this.MisMountedServerList.Count > 0);
this.IsMountedButAdminRequestedDismount = false;
if (this.IsMountedOnActive)
{
if (this.StateInfo.IsAdminDismounted)
{
this.IsMountedButAdminRequestedDismount = true;
}
if (!this.StateInfo.IsMounted)
{
this.IsClusterDatabaseOutOfSync = true;
}
}
else if (this.StateInfo.IsMounted)
{
this.IsClusterDatabaseOutOfSync = true;
}
this.IsPeriodicMountRequired = true;
if (!this.IsMountedOnActive)
{
bool flag = AmSystemManager.Instance.StoreStateMarker.IsStoreGracefullyStoppedOn(this.ActiveServer);
if (!this.Database.MountAtStartup || this.StateInfo.IsAdminDismounted || !this.StateInfo.IsMountAttemptedAtleastOnce || flag)
{
this.IsPeriodicMountRequired = false;
ReplayCrimsonEvents.PeriodicCheckerSkippedMount.LogPeriodic <string, Guid, AmServerName, bool, bool, bool, bool>(this.Database.Guid, TimeSpan.FromMinutes(30.0), this.Database.Name, this.Database.Guid, this.ActiveServer, this.Database.MountAtStartup, this.StateInfo.IsAdminDismounted, this.StateInfo.IsMountAttemptedAtleastOnce, flag);
}
}
else
{
this.IsPeriodicMountRequired = false;
}
if (this.StateInfo.IsMountSucceededAtleastOnce && !AmServerName.IsEqual(this.StateInfo.LastMountedServer, this.StateInfo.ActiveServer))
{
this.IsClusterDatabaseOutOfSync = true;
}
}
