There are Active and Stand-by production sites in our architecture which has IDM and SOA nodes independent of each other. The BPEL worklist is integrated with OSSO, in turn with OAM and is working fine in Active production site. As discussed in the previous post for setting up Disaster Recovery of Oracle Application Server, we have just replicated the DB and copied the Oracle App server folder completely from Active to Stand-by sites.
We followed the metalink note 753087.1 for integrating BPEL worklist with OSSO. The osso.conf file generated in Active production site is used for configuring the BPEL worklist. We used the same osso.conf file to configure BPEL worklist in Stand-By site. Once configuration is completed, we accessed the BPEL worklist using the URL http://soa.oracle.com:7777/integration/worklistapp/Login and encountered with 500 Internal Server Error as shown in below screenshot.
We found the below error in SOA Apache logs.[Wed Jun 15 17:30:02 2011] [error] [client 192.168.123.22] [ecid: 1308139202:10.200.37.36:929850:0:68,0] mod_oc4j: request to
Troubleshooting process: The solution is very simple that same hostnames were used for IDM nodes in both Active and Stand-by sites. The hostname were configured incorrectly in Stand-by environment and due to which the request from BPEL to OSSO (IDM) is not transferring and resulting in 500 Server error.
After rectifying the hostnames in SOA servers, we are able to login to BPEL worklist as shown below.
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