I am getting this on "alter system set events 'immediate trace name library_cache level 8'" in the background alert log: Empty system event group found, no events available OS Pid: 2200330 executed alter system set events 'immediate trace name library_cache level 8' The trace file produced contains only a few lines kind of: *** TRACE DUMP CONTINUES IN FILE /oracle/app/admin/fgli/udump/fgli_ora_2200330.trc *** The pointed trace file contains nothing except of *** TRACE DUMP CONTINUED FROM FILE /oracle/app/admin/fgli/udump/fgli_ora_2200330_TESTING.trc *** Any ideas? Thank you in advance, Laimsi N. Fyrirvari/Disclaimer http://www.landsbanki.is/disclaimer -- //www.freelists.org/webpage/oracle-l