11g setting max_dump_file_size in another session

I have a useful pl/sql script that facilitated the tracing of other users sessions. Bascially it checked the session was connected, asked what type of trace was required, set the max dumpfile size and started the trace. Since upgrading to 11g this is no longer such a useful script as the call I was using to dbms_system fails to set the max dumpfile size.

sys.dbms_system.set_int_param_in_session (v_session.sid,v_session.serial#,'max_dump_file_size',2147483647);

It doesn't error, just doesn't have any effect.

Has anybody got any suggestions as to how I can set this for another session from pl/sql? Oradebug is the only method I have found that works, but you can't call that from pl/sql, and I'd rather not rewrite  the script as a shell script.

Cheers

Ralph Received on Tue Dec 15 2009 - 09:09:17 CST