# HttpLimitReq Module not blocking every request? **URL:** \ **Category:** NGINX\ **Created:** [March 30, 2011, 1:26pm UTC](https://www.ruby-forum.com/t/httplimitreq-module-not-blocking-every-request/205132 "2011-03-30T13:26:41Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![luislavena](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/l/0ea827/32.png) [@luislavena](https://www.ruby-forum.com/u/luislavena)\ **Post date:** [March 30, 2011, 1:26pm UTC](https://www.ruby-forum.com/t/httplimitreq-module-not-blocking-every-request/205132/1 "2011-03-30T13:26:41Z")
Hello, I am trying to understand how the HttpLimitReq Module works. I have read that it uses the Leaky Bucket Algorithm, however I am not sure how to understand the behaviour I am observing. Here is my test setup: limit\_req\_zone $binary\_remote\_addr zone=one:10m rate=1r/m; location /test { limit\_req zone=one nodelay; } Every resource under /test should be accessible only once per minute - is that right? Now I have set up a test script to download a file from /test every second and I get the following results: success blocked blocked blocked blocked success … So every fifth request is coming through, so In total I get 12 successful requests and 48 blocked request per minute. However, from the rate setting I would expect to have only one successful download and 59 blocked requested. Can anyone explain why this is happening? Also is there a way to configure nginx to show the behaviour I am expecting? Thank you for your help! Best regards, Jonas Kaufmann Posted at Nginx Forum: > **[HttpLimitReq Module not blocking every request?](https://forum.nginx.org/read.php?2,186851,186851#msg-186851)** > > Hello, I am trying to understand how the HttpLimitReq Module works. I have read that it uses the Leaky Bucket Algorithm, however I am not sure how to understand the behaviour I am observing. Here is my test setup: limit\_req\_zone $binary\_remote\_addr... ---
**Author:** ![j0nes2k](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/6bbea6/32.png) [@j0nes2k](https://www.ruby-forum.com/u/j0nes2k)\ **Post date:** [March 30, 2011, 2:22pm UTC](https://www.ruby-forum.com/t/httplimitreq-module-not-blocking-every-request/205132/2 "2011-03-30T14:22:57Z")
Hello! On Wed, Mar 30, 2011 at 07:26:05AM -0400, j0nes2k wrote: > is that right? > Yes. Once per minute from single ip address. > successful requests and 48 blocked request per minute. However, from > the rate setting I would expect to have only one successful download and > 59 blocked requested. > > Can anyone explain why this is happening? Also is there a way to > configure nginx to show the behaviour I am expecting? My bet you’ve forgot to reload config after changing rate. Maxim D. ---
**Author:** ![j0nes2k](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/6bbea6/32.png) [@j0nes2k](https://www.ruby-forum.com/u/j0nes2k)\ **Post date:** [March 30, 2011, 2:57pm UTC](https://www.ruby-forum.com/t/httplimitreq-module-not-blocking-every-request/205132/3 "2011-03-30T14:57:38Z")
Well Maxim… obviously you were right - sorry about this, could have checked this earlier. Now everything is working as I expected. Thanks a lot for your help! Jonas Kaufmann Posted at Nginx Forum: > **[Re: HttpLimitReq Module not blocking every request?](https://forum.nginx.org/read.php?2,186851,186863#msg-186863)** > > Hello, I am trying to understand how the HttpLimitReq Module works. I have read that it uses the Leaky Bucket Algorithm, however I am not sure how to understand the behaviour I am observing. Here is my test setup: limit\_req\_zone $binary\_remote\_addr...