# Status Code 499 **URL:** \ **Category:** NGINX\ **Created:** [August 15, 2011, 4:36am UTC](https://www.ruby-forum.com/t/status-code-499/210696 "2011-08-15T04:36:54Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![dubstep](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/cdc98d/32.png) [@dubstep](https://www.ruby-forum.com/u/dubstep)\ **Post date:** [August 15, 2011, 4:36am UTC](https://www.ruby-forum.com/t/status-code-499/210696/1 "2011-08-15T04:36:54Z")
What’s the reason for error “499”? How to resolve this error? Thanks Posted at Nginx Forum: > **[Status Code 499](https://forum.nginx.org/read.php?2,213789,213789#msg-213789)** > > What's the reason for error "499"? How to resolve this error? Thanks ---
**Author:** ![sunjipeng\_neu](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/b487fb/32.png) [@sunjipeng\_neu](https://www.ruby-forum.com/u/sunjipeng_neu)\ **Post date:** [August 15, 2011, 7:43am UTC](https://www.ruby-forum.com/t/status-code-499/210696/2 "2011-08-15T07:43:56Z")
在 2011-08-14日的 22:36 -0400，sunjipeng\_neu写道： > [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) > [mailman.nginx.org archive](http://mailman.nginx.org/mailman/listinfo/nginx) there is no status code named “499”. – Best regards, Sharl.Jimh.Tsin (From China **Obviously Taiwan INCLUDED** ) Using Gmail? Please read this important notice: [http://www.fsf.org/campaigns/jstrap/gmail?10073](http://www.fsf.org/campaigns/jstrap/gmail?10073). ---
**Author:** ![sunjipeng\_neu](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/b487fb/32.png) [@sunjipeng\_neu](https://www.ruby-forum.com/u/sunjipeng_neu)\ **Post date:** [August 15, 2011, 8:14am UTC](https://www.ruby-forum.com/t/status-code-499/210696/3 "2011-08-15T08:14:51Z")
Hello! On Sun, Aug 14, 2011 at 10:36:06PM -0400, sunjipeng\_neu wrote: > What’s the reason for error “499”? > > How to resolve this error? 499 is logged by nginx if client closes connection before nginx was able to send anything to client. Large number of 499 may indicate that something is wrong on your server, e.g. response generation takes too long. Some number is usually ok: you are expected to have some users closing connections prematurely due to their internal reasons (e.g. bad connectivity, closing browser while loading page and so on). Maxim D. ---
**Author:** ![sunjipeng\_neu](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/b487fb/32.png) [@sunjipeng\_neu](https://www.ruby-forum.com/u/sunjipeng_neu)\ **Post date:** [August 15, 2011, 8:16am UTC](https://www.ruby-forum.com/t/status-code-499/210696/4 "2011-08-15T08:16:42Z")
In nginx, 499 means “client has closed connection”. However, guys know little about 499 as it’s not defined by rfc2616 but by nginx. When a client sent a request, and closed the connection without waiting for the response, a 499 code occurs. If there’re a lot of 499s in your access\_log, it’s mostly caused by the slow back-ends (too slow for your users to wait). You may have to optimize your website performance. Regards, Zhang Lei (@blogkid on Twitter) ---
**Author:** ![sunjipeng\_neu](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/b487fb/32.png) [@sunjipeng\_neu](https://www.ruby-forum.com/u/sunjipeng_neu)\ **Post date:** [August 15, 2011, 11:29am UTC](https://www.ruby-forum.com/t/status-code-499/210696/5 "2011-08-15T11:29:05Z")
在 2011-08-15一的 14:15 +0800，张磊写道： > performance. > \> > \> [mailman.nginx.org archive](http://mailman.nginx.org/mailman/listinfo/nginx) > > * * * > > nginx mailing list > [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) > [mailman.nginx.org archive](http://mailman.nginx.org/mailman/listinfo/nginx) All right.that is said “499” is nginx-only-own. – Best regards, Sharl.Jimh.Tsin (From China **Obviously Taiwan INCLUDED** ) Using Gmail? Please read this important notice: [Gmail — Free Software Foundation — Working together for free software](http://www.fsf.org/campaigns/jstrap/gmail?10073).