ORA-27125: unable to create shared memory segment Linux-x86_64

This question has been Answered.

 

Edit two files

1. /etc/security/limits.conf

2. /etc/sysctl.conf

 

Example

log in as root

 

# 

# nano /etc/security/limits.conf

#<domain>

<type>  <item>

<value>

#

#*	soft	core	0
#*	hard	rss	10000
#@student	hard	nproc	20
#@faculty	soft	nproc	20
#@faculty	hard	nproc	50
#ftp	hard	nproc	0
#@student	-	maxlogins	4

#adding the following 2 entries as per SAP Note: 797084

*	hard	nofile	32800
*	soft	nofile	32800

# End of file

2.  Find and edit sysctl.conf
Nano /etc/sysctl.conf
net.ipv4.icmp_echo_ignore_broadcasts = 1
net.ipv4.conf.all.rp_filter = 1
#net.ipv6.conf.all.forwarding = 1
fs.inotify.max_user_watches = 65536
net.ipv4.conf.default.promote_secondaries = 1
net.ipv4.conf.all.promote_secondaries = 1
#kernel.shmmax = -1
kernel.sem = 1250 256000 100 8192
#kernel.shmall = 1152921504606846720
vm.max_map_count = 300000
vm.hugetlb_shm_group = 1
kernel.threads-max = 8167
kernel.shmmax = 68719476736
kernel.shmall = 4294967296