Do this as following
log in to putty
#cat /etc/my.cnf
Copy this file by typing #cp cat/etc/my.cnf cat/etc/my.cnf.backup
To Edit from SSH we need to install nano(simple text file editor ):
To install nano :#yum install nano
For edit using nano :#nano /etc/my.cnf
At below [mysqld] add this by typing :
#skip-bdb
#skip-innodb
After Edit : just press #ctrl+X , and press #y for save.
Now restart our mysql : #service mysqld restart.
You will recover almost 200MB free , between don't worry about httpd they create to increase performance