# About rails connection pool?

**URL:** <https://www.ruby-forum.com/t/about-rails-connection-pool/66418>\
**Category:** Rails\
**Created:** [February 13, 2006, 6:41am UTC](https://www.ruby-forum.com/t/about-rails-connection-pool/66418 "2006-02-13T06:41:06Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![joe-black](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/87869e/32.png) [@joe-black](https://www.ruby-forum.com/u/joe-black)\
**Post date:** [February 13, 2006, 6:41am UTC](https://www.ruby-forum.com/t/about-rails-connection-pool/66418/1 "2006-02-13T06:41:06Z")

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hi all,  
how to config or use rails connection pool, like jsp, tomcat  
connection pool.  
regards.

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**Author:** ![joe-black](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/87869e/32.png) [@joe-black](https://www.ruby-forum.com/u/joe-black)\
**Post date:** [February 13, 2006, 7:29am UTC](https://www.ruby-forum.com/t/about-rails-connection-pool/66418/2 "2006-02-13T07:29:26Z")

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no one knows?

Joe B. wrote:

> hi all,  
> how to config or use rails connection pool, like jsp, tomcat  
> connection pool.  
> regards.

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<div class="post-metadata">

**Author:** ![joe-black](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/87869e/32.png) [@joe-black](https://www.ruby-forum.com/u/joe-black)\
**Post date:** [February 13, 2006, 8:01am UTC](https://www.ruby-forum.com/t/about-rails-connection-pool/66418/3 "2006-02-13T08:01:52Z")

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Hmm.

## As far as I know we don’t really do _connection_ pooling in rails. Instead we use things like fastcgi or scgi and do – I guess you would call it

‘process’ pooling. Each process has your database connection(s) open.

Does this answer your question?

-Kelly

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<div class="post-metadata">

**Author:** ![joe-black](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/87869e/32.png) [@joe-black](https://www.ruby-forum.com/u/joe-black)\
**Post date:** [February 13, 2006, 10:29am UTC](https://www.ruby-forum.com/t/about-rails-connection-pool/66418/4 "2006-02-13T10:29:10Z")

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thanks kelly, understood.

Kelly F. wrote:

> Hmm.
> 
> ## As far as I know we don’t really do _connection_ pooling in rails. Instead we use things like fastcgi or scgi and do – I guess you would call it
> 
> ‘process’ pooling. Each process has your database connection(s) open.
> 
> Does this answer your question?
> 
> -Kelly

---

<div class="post-metadata">

**Author:** ![joe-black](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/87869e/32.png) [@joe-black](https://www.ruby-forum.com/u/joe-black)\
**Post date:** [February 13, 2006, 3:45pm UTC](https://www.ruby-forum.com/t/about-rails-connection-pool/66418/5 "2006-02-13T15:45:33Z")

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Hi,

You can have a look at the class in  
connection\_specification.rb

The connection pool is stored inside of two hash  
varaibles, the key is the activerecords::base  
subclass, the value is the parameters of the  
connection.

Saiho

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