IBM Cognos Business Intelligence 10.2.2 on WebSphere Application Server 7.0.0.29 fails to start, possibly due to a missing classpath entry

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I have a server running IBM AIX 6.1.7.15 TL07 and I am trying to install Cognos Business Intelligence 10.2.2 on WebSphere Application Server Network Deployment 7.0.0.29, using a server cluster to deploy and manage my application and using an IBM DB2 10.5 server to save my content store. When I start one of my cluster’s application servers I get the following error message when I try to load my dispatcher URL:

Error 404: javax.servlet.UnavailableException: SRVE0200E: Servlet [com.cognos.pogo.isolation.ServletWrapper]: Could not find required class - class java.lang.ClassNotFoundException: com.cognos.pogo.isolation.ServletWrapper

Checking the WAS log file SystemOut.log I found the following error message…

Servlet cfgss is currently unavailable: SRVE0200E: Servlet[com.cognos.pogo.isolation.ServletWrapper]: Could not find required class -com.cognos.pogo.isolation.ServletWrapper

…which brought me to this IBM tech note that mentions it could be a problem with a missing CLASSPATH entry on my WAS server’s environment variables.

However, the note says nothing about how to fix this issue, and I have absolutely zero idea of what should I put on my CLASSPATH entry. An IBM Knowledge Center entry says I should put entries pointing at my DB2 database driver but I very much don’t think this is a DB2 driver issue as I can connect perfectly fine to my database from Cognos Configuration and the driver is present on <Cognos WebSphere application directory>/p2pd.war/WEB-INF/lib/db2jcc.jar.

Any idea on what’s going on here?

Answer

Problem solved, posting here for reference:

The problem was that the nodeagent’s configuration on my individual server was outdated respect to the one on my cluster’s deployment manager, and as a result my server was apparently starting with an incorrect CLASSPATH.

The solution was to stop the nodeagent and force a full configuration resync from the server’s command line using <WebSphere profile root>/bin/syncNode.sh <Dmgr server IP> <Dmgr SOAP connector port> -restart. Cognos started normally after resyncing the nodeagent’s configuration.

Attribution
Source : Link , Question Author : RAKK , Answer Author : RAKK

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