No trace files in udump and bdump.

Dear all,
I have oracle 10g on linux.
There are no files in folder bdump and udump.What could be the reason.
Is there any parameter that need to be set.
Please advice.
Regards,
Amit.

Hello Amit,
Looks pretty strange you have all parameters set properly and you have physical directories available but you are not seeing any trace files.
Try this little test and see if oracle generates trace files.. or not.
$ more trace.sh
sqlplus / << DOC
grant alter session to scott;
conn scott/tiger
create trigger logon_trigger
after logon on schema
begin
  execute immediate
  'alter session set events ''10046 trace name context forever, level 12''';
end;
DOC
$ sh trace.sh
SQL*Plus: Release 10.2.0.1.0 - Production on Fri Jun 2 16:18:04 2006
Copyright (c) 1982, 2005, Oracle.  All rights reserved.
Connected to:
Oracle Database 10g Release 10.2.0.1.0 - 64bit Production
Grant succeeded.
SQL> Connected.
Trigger created.
<< check udump directory >>
# /u01/oracle/admin/TEST/udump $ ls
total 2
-rw-r--r--   1 oracle   oinstall     136 Jan  5 11:24 tkprof.sh
<< Login and run some SQL statements >>
# /u01/oracle/admin/TEST/udump $ sqlplus scott/tiger
SQL*Plus: Release 10.2.0.1.0 - Production on Fri Jun 2 16:18:15 2006
Copyright (c) 1982, 2005, Oracle.  All rights reserved.
Connected to:
Oracle Database 10g Release 10.2.0.1.0 - 64bit Production
SQL>select * from tab;
TNAME                          TABTYPE  CLUSTERID
EMPLOYEES                      TABLE
TESTING                        TABLE
EMP                            TABLE
DEPT                           TABLE
BONUS                          TABLE
SALGRADE                       TABLE
DUMMY                          TABLE
7 rows selected.
SQL> exit
Disconnected from Oracle Database 10g Release 10.2.0.1.0 - 64bit Production
<< check for trace files in udump directory >>
u0002sfo: /u01/oracle/admin/TEST/udump $ ls -l
total 274
-rw-r-----   1 oracle   oinstall  129758 Jun  2 16:18 test_ora_11030.trc
-rw-r--r--   1 oracle   oinstall     136 Jan  5 11:24 tkprof.shJust a guess.. Are there any cronjob(s) running to clean up bdump/udump/cdump directories periodically.
-Sri
Message was edited by:
Srikanth Pulikonda

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