Oracle SOA 12c unable to un-deploy or test deployed composite

This is my another post on troubleshooting on SOA suite 12c. Below is the summary of business scenario and possible solution-

Problem

SOA Environment is somewhat dependant on other middleware product since this is being used in a bundle in IDAM or EISS(Enterprise Identity Services Suite). 

After making some changes in IDAM product, all the servers were rebooted including Admin and managed servers of cluster (OAM,OIM & SOA). After restart, SOA managed servers (soa_server1 & soa_server2) were started in a healthy state but below problems identified-

• Tried to deploy a soa composite-> Unable to deploy error
• Tried to un-deploy a soa composite via em -> Unable to deploy error
• Tried to test existing soa composite -> WSDL not found error, however the same WSDL was accessible by testing through URL in web browser
• In addition, no logs were printed in soa_server(x).log, soa_server(x).out, soa_server(x)-diagnostic.log

Cause

Below are possible cause of above problem- 

• Some administrative rights missing during reboot of servers.
• If order of servers reboot is important then this could be violated i.e. first OIM servers then SOA server etc.
• Any dependancy that prevented accessibility of SOA server resources.
• Permissions on respective servers directory could have changed.

Solution

Below are the possible solution of this problem-

• Restart all managed servers in the order as required especially for clustered environment, check the dependancy prior to start.
• Restart AdminServer.
• Investigate the directory chmod should have write permissions.
• Check if VM storage has not been exhausted that might prevent writing server logs.
• Try clearing temp files/logs Reboot the VM once.

References-

Oracle Doc (Doc ID 2228868.1)