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153 - Resource temporarily unavailable, ORA-12541

You have Oracle WMS and using a lot of mobile devices, sometimes you got an error "ORA-12541" in Oracle DB
or "Resource temporarily unavailable" in Linux with default ulimit settings in Oracle Application EBS Manual.
You need to increase the ulimit settings in /etc/security/limits.conf as the followings.

[root@myserver]# su - oradba
su: cannot set user id: Resource temporarily unavailable

* Edit /etc/security/limits.conf & save it

Oracle Application & WMS

* hard nofile 163840
* soft nofile 131072
* hard nproc 163840
* soft nproc 131072
* hard memlock 3145728
* soft memlock 3145728

* Check the ulimits parameters

# 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) 409600
max locked memory       (kbytes, -l) 3145728
max memory size         (kbytes, -m) unlimited
open files                      (-n) 131072
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) 131072
virtual memory          (kbytes, -v) unlimited
file locks                      (-x) unlimited



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