Error: Unable to load datalist. Timeout expired. The timeout period elapsed prior to completion of the operation or the server is not responding when searching for or linking transactions in a deposit

When searching for or linking transactions in a deposit the user may generate Error:  Unable to load datalist.  Timeout expired.  The timeout period elapsed prior to completion of the operation or the server is not responding when searching for or linking transactions in a deposit

Full error message:

Event code: 805300
Event message: Error in UIModelingService HTTP handler CreateDataFormSession:
Unable to load datalist.  Timeout expired.  The timeout period elapsed prior to completion of the operation or the server is not responding.
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 inner exception: Timeout expired.  The timeout period elapsed prior to completion of the operation or the server is not responding.
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recordid=f3776fd1-7cd5-46ba-90b1-355ff98668e7
dataFormInstanceId=9e93605b-17e0-48c0-bf16-219c2c8fa1bc
contextrecordid=
url=https://spark.uwgt.org/bbappfx/uimodel/UIModelingService.ashx?action=createDataFormSession&databaseName=BBInfinity&dataFormInstanceId=9e93605b-17e0-48c0-bf16-219c2c8fa1bc&recordId=f3776fd1-7cd5-46ba-90b1-355ff98668e7&_ts=1394655712069
 
Event time: 12/03/2014 4:22:22 PM
Event time (UTC): 12/03/2014 8:22:22 PM
Event ID: 4f2e7a940bab45dba2a786210a3a3f37
Event sequence: 93883
Event occurrence: 16
Event detail code: 2010110501
 
Application information:
    Application domain: /LM/W3SVC/2/ROOT/bbAppFx-1-130391239286346175
    Trust level: Full
    Application Virtual Path: /bbAppFx
    Application Path: C:\BBCRM\bbappfx\vroot\
    Machine name: S1SPKWBP6
 
Process information:
    Process ID: 4348
    Process name: w3wp.exe
    Account name: NT AUTHORITY\NETWORK SERVICE
 
Exception information:
    Exception type: ServiceException
    Exception message: Unable to load datalist.  Timeout expired.  The timeout period elapsed prior to completion of the operation or the server is not responding.
   at Blackbaud.AppFx.Server.DataListLoadProcessor.BeginProcessRequest(AsyncCallback callback, Object asyncState)
   at Blackbaud.AppFx.Server.AsyncRequestProcessorBase.GetReply()
   at Blackbaud.AppFx.Server.ServiceMethods.DispatchServiceMethod(RequestProcessorBase proc, Boolean checkSecurity)
   at Blackbaud.AppFx.Constituent.Catalog.IndividualSummaryCommunicationsViewDataForm.Load()
   at Blackbaud.AppFx.Server.DataFormLoadProcessor.ExecuteCLRViewLoad(Int32 timeOut)
   at Blackbaud.AppFx.Server.DataFormLoadProcessor.ExecuteCLRLoad(Int32 timeOut)
   at Blackbaud.AppFx.Server.DataFormLoadProcessor.ProcessRequest()
   at Blackbaud.AppFx.Server.RequestProcessor`2.GetReply()
   at Blackbaud.AppFx.Server.AppService.DispatchSyncRequest(RequestProcessorBase processor)
   at Blackbaud.AppFx.Server.AppService.DispatchRequest(RequestProcessorBase processor)
   at Blackbaud.AppFx.Server.AppFxWebService.DataFormLoad(DataFormLoadRequest req)
   at Blackbaud.AppFx.UIModeling.Core.DataFormUIModel.GetDataFormLoadReply(CreateDataFormUIModelArgs args)
   at Blackbaud.AppFx.UIModeling.Core.DataFormUIModel.CreateModel(CreateDataFormUIModelArgs args)
   at Blackbaud.AppFx.UIModeling.RestServices.SessionUtility.CreateDataFormSession(RequestContext context, Guid dataFormInstanceId, String recordId, String contextRecordId, CreateDataFormSessionArgs args, String userSettingsPath)
   at Blackbaud.AppFx.UIModeling.RestServices.UIModelingService.CreateDataFormSession(HttpContext context, String databaseName)

Timeout expired.  The timeout period elapsed prior to completion of the operation or the server is not responding.
   at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection)
   at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning()
   at System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj)
   at System.Data.SqlClient.SqlCommand.RunExecuteNonQueryTds(String methodName, Boolean async)
   at System.Data.SqlClient.SqlCommand.InternalExecuteNonQuery(DbAsyncResult result, String methodName, Boolean sendToPipe)
   at System.Data.SqlClient.SqlCommand.ExecuteNonQuery()
   at Blackbaud.AppFx.Server.RequestContext.OpenAppDBConnection(Boolean asyncMode, ConnectionContext appContext)
   at Blackbaud.AppFx.Server.DataListLoadProcessor.BeginExecuteSP(AsyncCallback callback, Object stateObject)
   at Blackbaud.AppFx.Server.DataListLoadProcessor.BeginProcessRequest(AsyncCallback callback, Object asyncState)

 
 
Request information:
    Request URL: https://spark.uwgt.org:443/bbappfx/uimodel/UIModelingService.ashx?action=createDataFormSession&databaseName=BBInfinity&dataFormInstanceId=9e93605b-17e0-48c0-bf16-219c2c8fa1bc&recordId=f3776fd1-7cd5-46ba-90b1-355ff98668e7&_ts=1394655712069
    Request path: /bbappfx/uimodel/UIModelingService.ashx
    User host address: 10.50.1.21
    User: UWAY001\vmedeiros
    Is authenticated: True
    Authentication Type: Negotiate
    Thread account name: NT AUTHORITY\NETWORK SERVICE
 
Thread information:
    Thread ID: 17
    Thread account name: NT AUTHORITY\NETWORK SERVICE
    Is impersonating: False
    Stack trace:    at Blackbaud.AppFx.Server.DataListLoadProcessor.BeginProcessRequest(AsyncCallback callback, Object asyncState)
   at Blackbaud.AppFx.Server.AsyncRequestProcessorBase.GetReply()
   at Blackbaud.AppFx.Server.ServiceMethods.DispatchServiceMethod(RequestProcessorBase proc, Boolean checkSecurity)
   at Blackbaud.AppFx.Constituent.Catalog.IndividualSummaryCommunicationsViewDataForm.Load()
   at Blackbaud.AppFx.Server.DataFormLoadProcessor.ExecuteCLRViewLoad(Int32 timeOut)
   at Blackbaud.AppFx.Server.DataFormLoadProcessor.ExecuteCLRLoad(Int32 timeOut)
   at Blackbaud.AppFx.Server.DataFormLoadProcessor.ProcessRequest()
   at Blackbaud.AppFx.Server.RequestProcessor`2.GetReply()
   at Blackbaud.AppFx.Server.AppService.DispatchSyncRequest(RequestProcessorBase processor)
   at Blackbaud.AppFx.Server.AppService.DispatchRequest(RequestProcessorBase processor)
   at Blackbaud.AppFx.Server.AppFxWebService.DataFormLoad(DataFormLoadRequest req)
   at Blackbaud.AppFx.UIModeling.Core.DataFormUIModel.GetDataFormLoadReply(CreateDataFormUIModelArgs args)
   at Blackbaud.AppFx.UIModeling.Core.DataFormUIModel.CreateModel(CreateDataFormUIModelArgs args)
   at Blackbaud.AppFx.UIModeling.RestServices.SessionUtility.CreateDataFormSession(RequestContext context, Guid dataFormInstanceId, String recordId, String contextRecordId, CreateDataFormSessionArgs args, String userSettingsPath)
   at Blackbaud.AppFx.UIModeling.RestServices.UIModelingService.CreateDataFormSession(HttpContext context, String databaseName)
 
 
Custom event details:
    ServiceRequest type:
    Database key:
    Client application:
    CorrelationID: 00000000-0000-0000-0000-000000000000
    Request Created: 12:00:00 AM
    Trace Category: Error
 

We are currently evaluating this issue and will update this article when we have more information.

Environment

 2.93.2034, patch 97

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