K2 Workspace Management Console not accessible and K2 Server not responding

Markus Kolbeck

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Feb 23, 2017 · 1 min read

All of a sudden the K2 Server stops responding, the K2 Workspace Management Console is not accessible, K2 SmartForms are not loading and you might get error messages similar to this one:

Object reference not set to an instance of an object.

at SourceCode.Hosting.Server.Runtime.HostSecurityManager.UpdateSessionIdentity(String sessionCookie, AuthenticatedCredential credential, Boolean isImpersonating)
at SourceCode.Hosting.Server.Runtime.HostSecurityManager.AuthenticateNativeSession(String sessionCookie, Byte[] inBuffer, Byte[]& outBufferPtr, String connectionString, String authReqSource)

Further Analysis

If the resulting number of the following query does not change after some time, I might have the right answer to you issue.

SELECT count(*)
	
FROM [K2].[Server].[ProcInst]
	where status = 1

Resolution

If you will ever run into this situation, please drop me a line (email, xing, linkedin, comment) and I am glad to tell you what I did to resolve that issue.