Re: how many TCP-connections at the same time per default?

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On Mon, Mar 22, 2010 at 9:43 AM, Andreas <619forlife@xxxxxx> wrote:
> Jeff Trawick wrote:
>
> On Sun, Mar 21, 2010 at 11:17 PM, Andreas <619forlife@xxxxxx> wrote:
>
>
> Hi guys,
>
> I want to know how many TCP-connections apache allows at the same time per
> default.
>
> Is it the Max_Clients setting?
> If I understand it correctly, it is not the Max_clients-setting because a
> Client can have more than one TCP Connection.
>
>
> MaxClients is misnamed, probably because clients generally had only
> one connection each when the directive was introduced.
>
> MaxClients is the maximum number of client connections handled by
> httpd simultaneously.  (There can be more TCP connections though --
> new connections that haven't yet been noticed by httpd, and
> terminating connections that no longer require processing by httpd.)
>
> MaxClients is subject to system resources, including RAM and file
> descriptors.
>
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>
>
>
> ok thx for the answer..
>
> so maxClients means max active TCP Connections that are actually handled by
> apache?
>
> The number of simultaneous TCP-Connections that require no processing of
> apache is not fixed?

a. new connections, either being established or established but not
yet processed by httpd:

the number of these might be fixed by TCP layer tuning

httpd's ListenBacklog directive does influence the maximum number, but
not directly (i.e., not 1:1); higher ListenBacklog "should" allow more
connections in this phase, possibly in conjunction with TCP-layer
tuning

b. old connections, with HTTP processing finished (e.g., TIME_WAIT)

the number might be fixed by TCP layer tuning

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