Reset ulimit

[clintongormley]

Hiya

I'm running ES with niofs, and after a while it hits the open file limit (default on my linux box is 1024). Any chance you can add a ulimit -n 4096 into the startup?

Not sure if 4096 is the right number, but works for me :)

thanks

Cilnt

[kimchy]

It should probably set it to a higher value, 16k or 32k. If I add the ulimit to the script, it might fail if there are no permissions to set it...

[clintongormley]

If ulimit fails, you could warn, no?

[kimchy]

Its just that I have never seen it being set explicitly in a startup script of any server product. Might be too intrusive. Have you seen it somewhere?

[clintongormley]

Not that I know of, I just thought that it goes along with the DoTheRightThing aspect of ES, but as you like :)

[asereda]

Hi Clint,
usually you set max open files limits in /etc/security/limits.conf (on RedHat flavours). Linux system will not allow a simple user to set anything higher than those limits. You can define max open files per-user by adding the following line:

elasticsearch hard nofile 8096

Andrei.

[clintongormley]

Thanks Andrei - I wasn't aware of that

clint