All Oracle Error Codes
Oracle DBA Forum

Frequent Oracle Errors

TNS:could not resolve the connect identifier specified
Backtrace message unwound by exceptions
invalid identifier
PL/SQL compilation error
internal error
missing expression
table or view does not exist
end-of-file on communication channel
TNS:listener unknown in connect descriptor
insufficient privileges
PL/SQL: numeric or value error string
TNS:protocol adapter error
ORACLE not available
target host or object does not exist
invalid number
unable to allocate string bytes of shared memory
resource busy and acquire with NOWAIT specified
error occurred at recursive SQL level string
ORACLE initialization or shutdown in progress
archiver error. Connect internal only, until freed
snapshot too old
unable to extend temp segment by string in tablespace
Credential retrieval failed
missing or invalid option
invalid username/password; logon denied
unable to create INITIAL extent for segment
out of process memory when trying to allocate string bytes
shared memory realm does not exist
cannot insert NULL
TNS:unable to connect to destination
remote database not found ora-02019
exception encountered: core dump
inconsistent datatypes
no data found
TNS:operation timed out
PL/SQL: could not find program
existing state of packages has been discarded
maximum number of processes exceeded
error signaled in parallel query server
ORACLE instance terminated. Disconnection forced
TNS:packet writer failure
see ORA-12699
missing right parenthesis
name is already used by an existing object
cannot identify/lock data file
invalid file operation
quoted string not properly terminated

RE: CPU priority for AIX 5.3 with mixed workload

Jesse, Rich


Hey Adrian,

Have you tried turning off SMT on your test system? From what I can
tell, smtctl can change this on-the-fly. If that's the case, perhaps
SMT could be turned off for the duration of your batch job.

Probably overly simplistic, but maybe worth a shot. And now to ask my
SA about SMT... :)


-----Original Message-----
From: oracle-l-bounce@(protected)
Sent: Tuesday, December 05, 2006 2:36 PM
To: oracle-l@(protected)
Subject: CPU priority for AIX 5.3 with mixed workload


My customer is running a database on AIX5.3, p590 with 14 Power
CPUs and SMT enabled.

The day workload is 8000 dedicated user connections plus 5 or so
long running reports.

They have an overnight batch job that is CPU bound and taking 8+ hours

On an unladen identical test system the same batch job completes in 2.5