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Hi,
I do have a problem that Exchange 2013 CU7 is giving mit a "The server cannot service this request right now. Try again later." when trying to access some accounts using EWS and impersonation.
I know there might be throttling involved and for that I did make an separate policy and assigned it to the users (EWS andthe mailbox - just in case...)
Here is what I got from the EWS logs:
.007Z,f973ffeb-b1fa-4946-a9b4-acb047ea1b37,15,0,1044,21,,NTLM,true,EWS@domain.de,domain,ExchangeServicesClient/0.0.0.0,Target=None;Req=Exchange2007_SP1/Exchange2007_SP1;,192.168.0.100,EWS15MB1,EWS15MB3.domain,FindItem,200,1041,,ErrorServerBusy,user@domain.de,,,cc91dc21f4c542acb64f196ec47ae727,c314fd38-a24e-4bcb-992e-e009c7adcb4e,PrimaryServer,LocalTask,0,1,0,1,0,0,1,0,0,,,,,,,,,0
Max,0 Max,,,,EWS_BO,0.1067,[C],0,0,10,390,,,5,0,,6,15,695,713,,,BackEndAuthenticator=WindowsAuthenticator;TotalBERehydrationModuleLatency=0;AuthzFlags=AuthzSkipTokenGroups;FindItemQueryFilter=(True);AQS=False;MailboxTypeCacheSize=2039;S:WLM.Cl=InternalMaintenance;S:ServiceTaskMetadata.ADCount=0;S:WLM.Type=Ews;S:FCI.MBXT=Primary;S:ServiceTaskMetadata.ADLatency=0;S:WLM.Int=True;S:FCI.QS=;S:ServiceTaskMetadata.RpcCount=10;S:ServiceTaskMetadata.RpcLatency=420;S:WLM.SvcA=False;S:FCI.VF=All;S:ServiceTaskMetadata.WatsonReportCount=0;S:ServiceTaskMetadata.ServiceCommandBegin=16;S:ServiceTaskMetadata.ServiceCommandEnd=711;S:ActivityStandardMetadata.Component=Ews;S:WLM.BT=Ews;S:BudgetMetadata.MaxConn=Unlimited;S:BudgetMetadata.MaxBurst=Unlimited;S:BudgetMetadata.BeginBalance=$null;S:BudgetMetadata.Cutoff=Unlimited;S:BudgetMetadata.RechargeRate=Unlimited;S:BudgetMetadata.IsServiceAct=False;S:BudgetMetadata.LiveTime=00:00:00.2343945;S:BudgetMetadata.EndBalance=$null;S:FCI.CVT=689;S:FCI.CSIT=70;S:FCI.CSIC=0;S:FCI.CSIQ=2;S:FCI.CSISTC=2;S:FCI.CSIG=54;S:FCI.CRIT=613;S:FCI.CRIC=340;S:FCI.CRIQ=2;S:FCI.CRIG=381;S:FCI.CRIET=0;S:FCI.CRINI=160;S:FCI.CRIMBT=0;S:FCI.CRIMET=7;S:FCI.CRIMP=0;S:FCI.CRIMAR=37;S:FCI.CVU=False;Dbl:WLM.TS=713;Dbl:BudgUse.T[]=715.151611328125;I32:ADR.C[dc1]=1;F:ADR.AL[dc1]=3.1106;Dbl:CCpu.T[CMD]=312.5;I32:RPC.C[EWS15mb1.fb00df0b-8bdd-4dee-81a3-1696ea8bd747]=10;Dbl:RPC.T[EWS15mb1.fb00df0b-8bdd-4dee-81a3-1696ea8bd747]=420;I32:ROP.C[EWS15mb1.fb00df0b-8bdd-4dee-81a3-1696ea8bd747]=80768493;I32:MAPI.C[EWS15mb1.fb00df0b-8bdd-4dee-81a3-1696ea8bd747]=23;Dbl:MAPI.T[EWS15mb1.fb00df0b-8bdd-4dee-81a3-1696ea8bd747]=420;I32:MB.C[EWS15mb1.fb00df0b-8bdd-4dee-81a3-1696ea8bd747]=10;F:MB.AL[EWS15mb1.fb00df0b-8bdd-4dee-81a3-1696ea8bd747]=42;Dbl:ST.T[EWS15mb1.fb00df0b-8bdd-4dee-81a3-1696ea8bd747]=59;I32:ATE.C[dc1.domain-]=1;F:ATE.AL[dc1.domain-]=0;Dbl:STCPU.T[EWS15mb1.fb00df0b-8bdd-4dee-81a3-1696ea8bd747]=46,,ExceptionHandler_Execute=Microsoft.Exchange.Services.Core.Types.ServerBusyException:
The server cannot service this request right now. Try again later. at Microsoft.Exchange.Services.Core.Search.NormalQueryView.ThrowIfFindCountLimitExceeded(UInt32 viewLength) at Microsoft.Exchange.Services.Core.Search.NormalQueryView.RetrieveCalendarViewData(Object[][]
view Int32 rowsToGet) at Microsoft.Exchange.Services.Core.Search.CalendarPageView.ApplyPostQueryPaging(Object[][] view) at Microsoft.Exchange.Services.Core.Search.NoGrouping.IssueQuery(QueryFilter query Folder
folder SortBy[] sortBy BasePagingType paging ItemQueryTraversal traversal PropertyDefinition[] propsToFetch RequestDetailsLogger logger) at Microsoft.Exchange.Services.Core.FindItem.FindItemsInParent(IdAndSession
folderIdAndSession) at Microsoft.Exchange.Services.Core.FindItem.Execute() at Microsoft.Exchange.Services.Core.ExceptionHandler`1.Execute(CreateServiceResult createServiceResult Int32 index GenerateMessageXmlForServiceError
generateErrorXml);,
And here is the throttling policy I'm using for those users.
ThrottlingPolicyScope : Regular
IsServiceAccount : False
AnonymousMaxConcurrency : 1
AnonymousMaxBurst : 120000
AnonymousRechargeRate :420000
AnonymousCutoffBalance : 720000
EasMaxConcurrency : 10
EasMaxBurst : 480000
EasRechargeRate : 1800000
EasCutoffBalance : 600000
EasMaxDevices : 100
EasMaxDeviceDeletesPerMonth : Unlimited
EasMaxInactivityForDeviceCleanup : Unlimited
EwsMaxConcurrency : Unlimited
EwsMaxBurst : Unlimited
EwsRechargeRate : Unlimited
EwsCutoffBalance : Unlimited
EwsMaxSubscriptions : Unlimited
ImapMaxConcurrency : Unlimited
ImapMaxBurst : 3600000
ImapRechargeRate : 600000
ImapCutoffBalance : Unlimited
OutlookServiceMaxConcurrency : 27
OutlookServiceMaxBurst : 300000
OutlookServiceRechargeRate : 900000
OutlookServiceCutoffBalance : 3000000
OutlookServiceMaxSubscriptions : 5000
OutlookServiceMaxSocketConnectionsPerDevice : 4
OutlookServiceMaxSocketConnectionsPerUser : 12
OwaMaxConcurrency : 20
OwaMaxBurst : 480000
OwaRechargeRate : 1800000
OwaCutoffBalance : Unlimited
OwaVoiceMaxConcurrency : 3
OwaVoiceMaxBurst : 75000
OwaVoiceRechargeRate : 375000
OwaVoiceCutoffBalance : 525000
PopMaxConcurrency : 20
PopMaxBurst : 3600000
PopRechargeRate : 600000
PopCutoffBalance : Unlimited
PowerShellMaxConcurrency : 18
PowerShellMaxBurst : Unlimited
PowerShellRechargeRate : Unlimited
PowerShellCutoffBalance : Unlimited
PowerShellMaxTenantConcurrency :
PowerShellMaxOperations : Unlimited
PowerShellMaxCmdletsTimePeriod : Unlimited
ExchangeMaxCmdlets : Unlimited
PowerShellMaxCmdletQueueDepth : Unlimited
PowerShellMaxDestructiveCmdlets : Unlimited
PowerShellMaxDestructiveCmdletsTimePeriod : Unlimited
PowerShellMaxCmdlets : Unlimited
PowerShellMaxRunspaces : Unlimited
PowerShellMaxTenantRunspaces :
PowerShellMaxRunspacesTimePeriod : Unlimited
PswsMaxConcurrency : 18
PswsMaxRequest : Unlimited
PswsMaxRequestTimePeriod : Unlimited
RcaMaxConcurrency : Unlimited
RcaMaxBurst : 150000
RcaRechargeRate : 900000
RcaCutoffBalance : Unlimited
CpaMaxConcurrency : Unlimited
CpaMaxBurst : Unlimited
CpaRechargeRate : Unlimited
CpaCutoffBalance : Unlimited
MessageRateLimit : Unlimited
RecipientRateLimit : Unlimited
ForwardeeLimit : Unlimited
DiscoveryMaxConcurrency : 15
DiscoveryMaxMailboxes : 20000
DiscoveryMaxKeywords :2000
DiscoveryMaxPreviewSearchMailboxes : 5000
DiscoveryMaxStatsSearchMailboxes : 1000
DiscoveryPreviewSearchResultsPageSize : 2000
DiscoveryMaxKeywordsPerPage : 500
DiscoveryMaxRefinerResults : 500
DiscoveryMaxSearchQueueDepth : 128
DiscoverySearchTimeoutPeriod : 30
PushNotificationMaxConcurrency : 20
PushNotificationMaxBurst : Unlimited
PushNotificationRechargeRate : Unlimited
PushNotificationCutoffBalance : Unlimited
PushNotificationMaxBurstPerDevice : 10
PushNotificationRechargeRatePerDevice : 6
PushNotificationSamplingPeriodPerDevice : 600000
EncryptionSenderMaxConcurrency : 200
EncryptionSenderMaxBurst : 4800000
EncryptionSenderRechargeRate : 18000000
EncryptionSenderCutoffBalance : Unlimited
EncryptionRecipientMaxConcurrency : 20
EncryptionRecipientMaxBurst : 480000
EncryptionRecipientRechargeRate : 1800000
EncryptionRecipientCutoffBalance : Unlimited
ComplianceMaxExpansionDGRecipients : 10000
ComplianceMaxExpansionNestedDGs : 25
IsLegacyDefault : False
Diagnostics :
Do you have an idea how to get rid of this?
Thank you.
Regards
Carsten