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Reply to topic   Topic: Apache / WebSocket/ MPM-Module. Correct Config needed
Author
Dumbeldore



Joined: 23 Aug 2019
Posts: 3
Location: Germany

PostPosted: Tue 26 Jul '22 17:08    Post subject: Apache / WebSocket/ MPM-Module. Correct Config needed Reply with quote

Hi there,

i need the correct settings when apache should handle 10000 or more concurrent websocket connections.

Currently i have this and sometimes i got an error like this:

"Server ran out of threads to serve requests. Consider raising the ThreadsPerChild setting"

Code:
# WinNT MPM
# ThreadsPerChild: constant number of worker threads in the server process
# MaxConnectionsPerChild: maximum number of connections a server process serves
<IfModule mpm_winnt_module>
   ThreadLimit         15000
   ThreadsPerChild     10000
    MaxRequestsPerChild    0

   AcceptFilter http none
    AcceptFilter https none
    AcceptFilter ws none
    AcceptFilter wss none
</IfModule>


I am unsure that the settings are correct, specially the not defined "MaxConnectionsPerChild".

Any hint?

bye...
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James Blond
Moderator


Joined: 19 Jan 2006
Posts: 7147
Location: Germany, Next to Hamburg

PostPosted: Wed 27 Jul '22 13:01    Post subject: Reply with quote

You limited ThreadsPerChild to 10k. You may want to increase that.

Well, MaxConnectionsPerChild used to be MaxRequestsPerChild (the old name). See https://httpd.apache.org/docs/2.4/en/mod/mpm_common.html#maxconnectionsperchild

The limit of ThreadLimit for mpm_winnt is 15k. You already set that value.
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Dumbeldore



Joined: 23 Aug 2019
Posts: 3
Location: Germany

PostPosted: Thu 28 Jul '22 6:39    Post subject: Reply with quote

thanks a lot!

Bye
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