Symptoms

Client introduced a new server into our K2 farm.
That new server is reporting errors that the old server is not.

Error1 :
"594596","2015-02-02 08:59:40","Error","System","2025","InternalMarshalError","SourceCode.Hosting.Server.Services.TCPClientSocket.InternalMarshal","2025 Error Marshalling SourceCode.SmartObjects.Runtime.SmartObjectClientServer.ExecuteList, Could not load file or assembly 'file:///C:Program Files (x86)K2 blackpearlServiceBrokerSourceCode.K2.Services.WorklistsService.dll' or one of its dependencies. The system cannot find the file specified.","system","10.20.51.171","UKDCVAP171:C:Program Files (x86)K2 blackpearlHost ServerBin","594596","cabf3b92b4cd4728bf011ac7fed0958a",""

Error2:
"427244","2015-02-01 14:50:50","Error","General","1","GeneralErrorMessage","K2Sql.OpenConnection","1 The target principal name is incorrect. Cannot generate SSPI context.","","","UKDCVAP171:C:Program Files (x86)K2 blackpearlHost ServerBin","427244","c6e7ad53d8d34173a2fdbaeeabe72490",""

 

Diagnoses

Error1:
This is due to missing custom on the new node .dll's

Error2:
SQL connection issue
 

Resolution

Error1:
Two custom .dll’s was not present on the new node.
The two DLLS were copied across which resolved the issue.

Error2:
It could have been related to weekend work being carried out on their network.