Optimize your fail2ban memory use by 90%.

The solution turns out to be a one-liner on Debian Lenny

append the ulimit command to /etc/default/fail2ban file.

Add (to the file) on last line :

"ulimit -s 256"

Using this sets the default stack size for the Python instances running fail2ban to 256 KB and lowers the memory consumption of fail2ban approximately by a factor of 10.

I had 256mb use -> now less than 20.

 

my memory usage for fail2ban went from 23980 blocks to 9412 using

Code:

ps -aux |grep fail2ban

 

Did not seem to work with me.
Service did not restart.

 

Is only a line in a file, there is nothing to fail.
I think maybe windows is better for you.


dont include the " ", maybe is that.

 

Quote: Originally Posted by SamTzu
Did not seem to work with me.
Service did not restart.

..or maybe your instructions were actually false or inaccurate?

It worked without the quotes. thx.

 

Greetings to all i had added the line to end of file like it was suggested but i still have problems . When i open htop it shows me 4 instances of fail2ban each one of them eats about 624mb. How to fix that ?

 

seems it's an old topic… so go back with defaults