# Problem related to Caching in mongrel

**URL:** <https://www.ruby-forum.com/t/problem-related-to-caching-in-mongrel/197908>\
**Category:** Mongrel\
**Created:** [October 22, 2010, 2:17pm UTC](https://www.ruby-forum.com/t/problem-related-to-caching-in-mongrel/197908 "2010-10-22T14:17:47Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![okkezSS](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/o/85f322/32.png) [@okkezSS](https://www.ruby-forum.com/u/okkezSS)\
**Post date:** [October 22, 2010, 2:17pm UTC](https://www.ruby-forum.com/t/problem-related-to-caching-in-mongrel/197908/1 "2010-10-22T14:17:47Z")

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My production server has 6 mongrels running. I hosted a CMS (content  
management system) on the server. As a admin of the website, I delete  
few tabs in the site. But the Public version(for the non-loggedin)  
version of the site still shows the deleted tabs at random(some times  
they show up and sometimes don’t). I suppose that the cache at some of  
the mongrels is not updated properly and that is why I can see the  
deleted tabs. Is my supposition correct. Or am I missing something? Can  
someone help me out. I am blocked on this right now.

Thanks in Advance,  
-Saratchand

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**Author:** ![schand](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/dec6dc/32.png) [@schand](https://www.ruby-forum.com/u/schand)\
**Post date:** [October 22, 2010, 3:56pm UTC](https://www.ruby-forum.com/t/problem-related-to-caching-in-mongrel/197908/2 "2010-10-22T15:56:03Z")

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this is not a mongrel question. ask it on the mailing list of your cms.

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**Author:** ![schand](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/dec6dc/32.png) [@schand](https://www.ruby-forum.com/u/schand)\
**Post date:** [October 22, 2010, 4:16pm UTC](https://www.ruby-forum.com/t/problem-related-to-caching-in-mongrel/197908/3 "2010-10-22T16:16:54Z")

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On Fri, Oct 22, 2010 at 9:17 AM, Saratchand Kanuri  
[removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote:

> My production server has 6 mongrels running. I hosted a CMS (content  
> management system) on the server. As a admin of the website, I delete  
> few tabs in the site. But the Public version(for the non-loggedin)  
> version of the site still shows the deleted tabs at random(some times  
> they show up and sometimes don’t). I suppose that the cache at some of  
> the mongrels is not updated properly and that is why I can see the  
> deleted tabs. Is my supposition correct. Or am I missing something? Can  
> someone help me out. I am blocked on this right now.

Some questions:

- What software is your CMS? Radiant? other?
- What caching strategy is setup in your Rails/CMS application? The  
one by default?

Asking this because Rails MemoryStore, the default caching strategy  
only works for a single process. Multiple process requires a shared  
memory caching strategy, like memcache

## – Luis L. AREA 17

Perfection in design is achieved not when there is nothing more to add,  
but rather when there is nothing more to take away.  
Antoine de Saint-Exupry