# Question about high cpu usage during shut down

**URL:** <https://www.ruby-forum.com/t/question-about-high-cpu-usage-during-shut-down/214591>\
**Category:** NGINX\
**Created:** [December 6, 2011, 6:14pm UTC](https://www.ruby-forum.com/t/question-about-high-cpu-usage-during-shut-down/214591 "2011-12-06T18:14:00Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**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:** [December 6, 2011, 6:14pm UTC](https://www.ruby-forum.com/t/question-about-high-cpu-usage-during-shut-down/214591/1 "2011-12-06T18:14:00Z")

</div>

Hi,

We are using nginx for proxy caching. It seems every time when I send  
HUP to nginx, those shutting down workers will have extremely high cpu  
usage.

Is that normal? Or did I misconfigured nginx?

Thanks,

–Yejun Yang

---

<div class="post-metadata">

**Author:** ![Yejun\_Yang](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/y/47e85d/32.png) [@Yejun\_Yang](https://www.ruby-forum.com/u/Yejun_Yang)\
**Post date:** [December 6, 2011, 6:35pm UTC](https://www.ruby-forum.com/t/question-about-high-cpu-usage-during-shut-down/214591/2 "2011-12-06T18:35:04Z")

</div>

Hello!

On Tue, Dec 06, 2011 at 12:13:30PM -0500, Yejun Yang wrote:

> Hi,
> 
> We are using nginx for proxy caching. It seems every time when I send  
> HUP to nginx, those shutting down workers will have extremely high cpu  
> usage.
> 
> Is that normal? Or did I misconfigured nginx?

Which nginx version are you using?

Maxim D.

---

<div class="post-metadata">

**Author:** ![Yejun\_Yang](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/y/47e85d/32.png) [@Yejun\_Yang](https://www.ruby-forum.com/u/Yejun_Yang)\
**Post date:** [December 6, 2011, 11:45pm UTC](https://www.ruby-forum.com/t/question-about-high-cpu-usage-during-shut-down/214591/3 "2011-12-06T23:45:13Z")

</div>

I am using 1.0.9