[error 13079] [ecid: -] No matching CACHE element found in webcache.xml for current hostname

I ran into this issue. But this post is from: 

http://pythianpang.wordpress.com/2008/07/17/error-13079-ecid-no-matching-cache-element-found-in-webcache-xml-for-current-hostname/

 

 

RunInstaller stuck in screen when I came back:
Configuration assistant "OPMN Configuration Assistant" failed.
Log: $ORACLE_HOME/opmn/logs/WebCache~WebCacheAdmin~1 Go to check log.
tail -10f   WebCache~WebCacheAdmin~1
[error 13079] [ecid: -] No matching CACHE element found in webcache.xml for current hostname (***) and ORACLE_HOME (***)
That "hostaname" is what I get when run command hostname. However, it is not mine ORACLE_HOSTNAME just before installation. Thing is clear,  Webcache picked up my specified hostname but it thinks it doesn’t match output from hostname command. Then I do next is to modify webcache.xml …Oracle approved this guess in metalink ID: 432774.1 .
"Edit the file $OMS_HOME/webcache/webcache.xml, changing the HOSTNAME attribute in the CACHE element
<CACHE NAME ………. HOSTNAME=" proper ipaddress ">
Keep on going.