ORACLE IAS WebCache can't startup

opmnctl status



Processes in Instance: XXX
-------------------+--------------------+---------+---------
ias-component      | process-type       |     pid | status  
-------------------+--------------------+---------+---------
DSA                | DSA                |     N/A | Down    
HTTP_Server        | HTTP_Server        |   11939 | Alive   
LogLoader          | logloaderd         |     N/A | Down    
dcm-daemon         | dcm-daemon         |   13132 | Alive   
OC4J               | home               |   11940 | Alive   
OC4J               | aaOC4J            |   11950 | Alive   
OC4J               | bbOC4J            |   11951 | Alive   
OC4J               | ccOC4J            |   11952 | Alive   
OC4J               | ddOC4J             |   11955 | Alive   
OC4J               | eeOC4J            |   11962 | Alive   
OC4J               | ffOC4J            |   11963 | Alive   
OC4J               | ggOC4J            |   11965 | Alive   
OC4J               | hhOC4J            |   11978 | Alive   
WebCache           | WebCache           |     N/A | Down    
WebCache           | WebCacheAdmin      |     N/A | Down   


$ORACLE_HOME/webcacahe/logs/event_log
..
[alert 9526] [ecid: -] Permission denied when setting group ID ( oinstall )
[alert 13003] [ecid: -] Configuration error. Stopping admin or cache server.


At Doc ID 464198.1

CAUSE 1
Web Cache was started by a user or process that is running under a different group which doesn't have sufficient privilege 
to change to the group listed in webcache.xml (only root is allowed to change groups).


CAUSE 2
The owner of the Oracle Home does not have the correct unix primary group (GID) setting. There is a mismatch between the information 
returned by the unix 'id' command and the information held in the /etc/group file. For 


I solved this problem use this command by root privilege.


webcache_setuser.sh setroot oracle



then, webcache can start correctly.