[solved] Too many open files

[IanD]

Hi,

Around once per hour I am getting the email:

LiteSpeed Web server server on server restarts automatically to fix 503 Errors

Fair enough, I check my log files and I can see this is the problem:

2011-07-20 22:51:28.771 [ERROR] HttpListener::acceptConnection(): [***.***.***.***] can't accept:Too many open files!

This has been happening for a while, I have followed the advice on:

http://www.litespeedtech.com/how-tos.html#qa_incfd

root@server2 [~]# cat /proc/sys/fs/file-nr
12750   0       4847816

And

ulimit -n 10000

Though this normally gets reset back to 2048 after a while.

I have been logging the number of open files of root and nobody with:

#/usr/sbin/lsof -u root | wc -l
#/usr/sbin/lsof -u nobody | wc -l

and it appears that when 'nobody' gets to around 20k, that's when the problems start.

Any any idea what this limit is and how to change it?

Many thanks,

Ian

 

[NiteWave]

Please confirm the version: it's the latest 4.1.2 ? if not, do a force re-install and see if issue still exists.

 

[IanD]

It is 4.1.2 - I have forced reinstall and will let you know if it continues.

Thanks.

 

[mistwang]

if it happen again, please compress and send output of lsof.

 

[IanD]

Unfortunately it is still happening.. I have sent the lsof output to:

info at litespeedtech.com

Let me know if you need it sending somewhere else.

Thanks for your help.

 

[IanD]

After new force install I am no longer getting this problem which is great.

Still restarting very often due to 503 errors - but I believe this is probably a different problem that I will look into!

Thanks for sorting this one out.

 

[mistwang]

Please force reinstall 4.1.2, more bug fixed for this issue.

 

[IanD]

Yes - force reinstalling again has fixed it.

Thanks for the awesome level of support here!