Bash: Check up, Run a process if not running

Bash: Check up, Run a process if not running

Hi , My requirement is that , if Memcache server is down for any reason in production , i want to restart it immediately

Typically i will start Memcache server in this way with user as nobody with replication as shown below

memcached -u nobody -l 192.168.1.1 -m 2076 -x 192.168.1.2 -v

So for this i added a entry in crontab this way

(crontab -e)

*/5 * * * * /home/memcached/memcached_autostart.sh

memcached_autostart.sh

#!/bin/bash
ps -eaf | grep 11211 | grep memcached
# if not found - equals to 1, start it
if [ $? -eq 1 ]
then
memcached -u nobody -l 192.168.1.1 -m 2076 -x 192.168.1.2 -v
else
echo "eq 0 - memcache running - do nothing"
fi

My question is inside memcached_autostart.sh , for autorestarting the memcached server , is there any problem with the above script ??

Or

If there is any better approach for achieving this (rather than using cron job ) Please share your experience .