Are you seeing any exceptions in the SOA Server Out file ( Standard Out ) while starting SOA Server ? Composites will be compiled and loaded during the startup
I believe some of the composites failed to compile so never loaded
Composites may be not deploying correctly, you'll have to look into the soa diagnostic logs to find out what's happening...
Thanks for the replies, i will ask additional question related to this one:
1. I did see some issues error to load the composite on one of the nodes (total 2 nodes), still i don't understand why the same composite was loaded on 1 server and failed to load on the 2nd.
2. Is there any way to check that composites were loaded compile and loaded properly (wlst script will take the info from MDS so no much help from WLST), any ideas ?
Some time back I had similar issue with my environments and after digging a lot found issue with below argument which was not set there. if its a non prod environment for you, you can try to set below property on all your nodes and see if this can help you.
–XX:ReservedCodeCacheSize=512M and –XX:+UseCodeCacheFlushing.