Error: During rebuild index getting the following error
ORA-12801: error signaled in parallel query server P000
ORA-01116: error in opening database file 189
ORA-01110: data file 189: '/u02/app/oracle/oradata/bachstdb/micpdb/users04.dbf'
ORA-27077: too many files open
Changes:
There is no changes in the system .
Cause:
open files for oracle user is set to very low value 1024 .
Solution:
Last login: Tue Jul 11 08:07:39 2023 from 10.11.208.115
[oracle@DBBACH ~]$ ulimit -n
4096
[oracle@DBBACH ~]$
[oracle@DBBACH ~]$ ulimit -a
core file size (blocks, -c) 0
data seg size (kbytes, -d) unlimited
scheduling priority (-e) 0
file size (blocks, -f) unlimited
pending signals (-i) 1027294
max locked memory (kbytes, -l) 64
max memory size (kbytes, -m) unlimited
open files (-n) 4096
pipe size (512 bytes, -p) 8
POSIX message queues (bytes, -q) 819200
real-time priority (-r) 0
stack size (kbytes, -s) 10240
cpu time (seconds, -t) unlimited
max user processes (-u) 2047
virtual memory (kbytes, -v) unlimited
file locks (-x) unlimited
[oracle@DBBACH ~]$
[oracle@DBBACH ~]$ vim /etc/security/limits.conf
oracle soft nproc 2047
oracle hard nproc 16384
oracle soft nofile 4096
oracle hard nofile 65536
oracle soft stack 10240
change the value from 4096 to 65536
$su - oracle
$ ulimit -n
65536
Now please execute index rebuild command
IMPORTANT: Be aware that increasing the limit directly/randomly will have impact on system resource as well
so you need to test it whether your system is feasible for increasing the limits.
