Bug 6447507In Application Server 10.1.2, if the $ORACLE_HOME/webcache/webcache.pid file exists but it has 0 bytes and you try to startup the WebCache component the WebCache component is not started up and opmn processes die, leaving the other opmn managed processes orphans. A manual kill of them needs to be performed followed by an opmnctl startall to fix the problem. The problem may happen if the filesystem where the ORACLE_HOME is hosted gets full.Solution:rm $ORACLE_HOME/webcache/*.pidtouch $ORACLE_HOME/webcache/webcache....
