#!/bin/sh
# This include will setup the machine to correctly run Oracle
echo "Setting sysctl limits"
cat >> /etc/sysctl.conf <<EOF
kernel.sem = 256 32000 100 142
kernel.shmall = 2097152
kernel.shmmni = 4096
kernel.msgmax = 8192
kernel.msgmbn = 65535
kernel.msgmni = 2878
fs.file-max = 65536
net.ipv4.ip_local_port_range = 1024 65000
net.core.rmem_default = 262144
net.core.rmem_max = 262144
net.core.wmem_default = 262144
net.core.wmem_max = 262144
EOF

# Calculate total free memory
fullmem=`/usr/bin/free -b | sed '1d;3,4d' | awk '{print $2}'`
halfmem=$(echo "$fullmem / 2" | bc)

echo "kernel.shmmax = $halfmem" >> /etc/sysctl.conf

echo "Setting open file limits"
echo >> /etc/security/limits.conf <<EOF
* hard nofile 65535
* soft nofile 4096
EOF