Resource temporarily unavailable error in Linux

 error -  -bash: fork: Resource temporarily unavailable

link - https://access.redhat.com/solutions/22105

 

//You can run the below command to find the number of processes opened for every user and compare if that limit is exceeded with what defined in /etc/security/limits.conf or /etc/security/limits.d/*.

 

[root@server boobi]# ps --no-headers auxwwwm | cut -f1 -d' ' | sort | uniq -c | sort -n

      2 dbus

      2 rpc

      4 postfix

      4 boobi

      8 polkitd

     14 apache

    299 root

   3638 mqmapp

---

[root@server boobi]#  ps auxwwwm | grep mqmapp | wc -l

3655

---------

[root@server boobi]# cat /etc/security/limits.d/20-nproc.conf  | grep -v '#'

 

*          soft    nproc     4096

root       soft    nproc     unlimited

 

--

[root@server boobi]# cat /etc/security/limits.conf | grep -v '#'

 

 

mqmapp       hard  nofile     10240

mqmapp       soft  nofile     10240

mqmapp       hard  nproc      4096

mqmapp       soft  nproc      4096

----

 

//Add or edit the following line in the /etc/pam.d/login file, if it does not already exist:

 

session     required     pam_limits.so

 

----

//Add the following lines to /etc/profile:

 

if [ $USER = "oracle" ]; then

    if [ $SHELL = "/bin/ksh" ]; then

        ulimit -p 16384

        ulimit -n 65536

    else

        ulimit -u 16384 -n 65536

    fi

fi

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