# Too many open files

**URL:** <https://www.ruby-forum.com/t/too-many-open-files/194136>\
**Category:** NGINX\
**Created:** [August 30, 2010, 11:18pm UTC](https://www.ruby-forum.com/t/too-many-open-files/194136 "2010-08-30T23:18:21Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![iberci](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/i/a3d4f5/32.png) [@iberci](https://www.ruby-forum.com/u/iberci)\
**Post date:** [August 30, 2010, 11:18pm UTC](https://www.ruby-forum.com/t/too-many-open-files/194136/1 "2010-08-30T23:18:21Z")

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Our site is getting busy and we are now getting these errors:

2010/08/30 16:10:47 [alert] 4729#0: accept() failed (24: Too many open  
files)

I’ve already looked online in several places but am unclear about how to  
more clearly diagnose the problem and correct. Any help as always is  
greatly appreciated.

Running: cat /proc/sys/fs/file-max

yields: 800669

Running ulimit

yields: unlimited

Top of Nginx configuration looks like this:

worker\_processes 5;

events {  
worker\_connections 4096;  
}

I’ve looked here:

[http://www.ruby-forum.com/topic/137385](http://www.ruby-forum.com/topic/137385)

and here:

[http://nginx.2469901.n2.nabble.com/worker-rlimit-nofile-os-vs-master-vs-workers-td3453734.html](http://nginx.2469901.n2.nabble.com/worker-rlimit-nofile-os-vs-master-vs-workers-td3453734.html)

Running CentOS

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<div class="post-metadata">

**Author:** ![iberci](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/i/a3d4f5/32.png) [@iberci](https://www.ruby-forum.com/u/iberci)\
**Post date:** [August 30, 2010, 11:42pm UTC](https://www.ruby-forum.com/t/too-many-open-files/194136/2 "2010-08-30T23:42:56Z")

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Yes, that revealed the cause I think that was set to 1024.

Sent on the Sprint® Now Network from my BlackBerry®

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<div class="post-metadata">

**Author:** ![iberci](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/i/a3d4f5/32.png) [@iberci](https://www.ruby-forum.com/u/iberci)\
**Post date:** [August 30, 2010, 11:35pm UTC](https://www.ruby-forum.com/t/too-many-open-files/194136/3 "2010-08-30T23:35:19Z")

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Ilan,

Try:

ulimit -n

Scott