Limit the number of connection per virtual host

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Hi all,

I'm using Apache 2.2 on LE for several years now and i use intensively the virtual host mechanism (300 virtual hosts per http instance).

As soon as you start sharing resources between applications, you want to protect your platform and prevent an application from taking all the threads and cause a resource starvation for the others. 

To do so i used the third party mod_qos module to limit the number of simultaneous connexions per virtual hosts. Now that i intend to migrate to Apache 2.4, my first tests reveal that this module is not compatible with this version of Apache, that's also the warning that developper raised for his module.

It appears that i don't find any real alternative to substitute the mod_qos module with something else. Here are my questions :

- Can you confirm that Apache does not provide any mecanism allowing to limit the number of connection per virtual host, just to be sure that i'm not missing something ?

- Why Apache doesn't provide such a functionality ? :) >From my very humble user perspective, i'm surprised that this is not a native functionality as it seems to me that my need is probably shared by many users. Moreover Apache provides many other complex functionalities, the one i'm describing would be probably something simple to implement compared to other functionalities already available.

Thanks in advance for your feedbacks.
Sylvain

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