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ORA-27300:ORA-27301:ORA-27302

3035820Jan 6 2016 — edited Jan 14 2016

Hi,

I found following errors in the alert log file.

Tue Jan 05 18:04:57 2016

Process startup failed, error stack:

Errors in file /app/cord033/01/admin/diag/rdbms/cord033d/CORD033D/trace/CORD033D_psp0_24314090.trc:

ORA-27300: OS system dependent operation:fork failed with status: 12

ORA-27301: OS failure message: Not enough space

ORA-27302: failure occurred at: skgpspawn3

my findings

SQL> show parameter processes

NAME                                 TYPE        VALUE

------------------------------------ ----------- ------------------------------

aq_tm_processes                      integer     1

db_writer_processes                  integer     1

gcs_server_processes                 integer     0

global_txn_processes                 integer     1

job_queue_processes                  integer     0

log_archive_max_processes            integer     4

processes                            integer     500

time(seconds)        unlimited

file(blocks)         unlimited

data(kbytes)         unlimited

stack(kbytes)        4194304

memory(kbytes)       unlimited

coredump(blocks)     2097151

nofiles(descriptors) unlimited

threads(per process) unlimited

processes(per user)  unlimited

A note I found in the google

ORA-27300: OS system dependent operation: string failed with status: string

Cause:  OS system call error

Action: Contact Oracle Support

I noted that the maximum user process for this server was set to 2047 and when I check the total number of process it is reaching the OS limit,

causing the ORA-27300 error. We need to check the "processes" Oracle parameter to ensure that it is large enough and we also need to increase

the process limit to fix the ORA-27300 error and here are the commands for each OS:

The above trace file CORD033E_psp0_27066454.trc contains the same errors as above

Max processes allowed per user 4096

Could you please comment on this issue?

Oracle  -- 11.2.0.3.0

OS      -- AIX

Regards,

Bala

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Locked on Feb 11 2016
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