Tuning the Linux operating system

If Oracle SOA Suite 11g is installed on a Linux operating system, consider increasing the ulimit for environments with large load. This is to avoid the following error, which appears in the /var/log/messages log under heavy load:

Dec 25 20:53:22 soahost1 sshd[22480]: fatal: setresuid 10000: Resource temporarily unavailable

As the root user, perform the following:

1. 1. Add the following in /etc/security/limits.conf (assuming the product is installed by the oracle Unix user):

   oracle soft nproc 16384
   oracle hard nproc 63536
   oracle soft nofile 16384
   oracle hard nofile 63536
   

2. 2. Add the following in /etc/profile (for 32-bit operating systems):

   if [ $USER = "oracle" ]; then
   if [ $SHELL = "/bin/ksh" ]; then
   ulimit -p 16384
   ulimit -n 65536
   # Use the following for 64-bit operating systems instead
   # ulimit -Su 16383
   # ulimit -Hu 16383
   # ulimit -Sn 63535
   # ulimit -Hn 63535
   else
   ulimit -u 16384 -n 65536
   # Use the following for 64-bit operating systems instead
   # ulimit -Hn...