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Reply to topic   Topic: need some help from experts (apache, mod_proxy, websocket)
Author
Dumbeldore



Joined: 23 Aug 2019
Posts: 1
Location: Germany

PostPosted: Fri 23 Aug '19 13:57    Post subject: need some help from experts (apache, mod_proxy, websocket) Reply with quote

Hi there,

i have a nodejs application behind an apache webserver like this:

Code:
apache 2.4.42 (win64)
       |- mod_proxy
              |- pm2 - processmonitoring
                        |- My NodeJS-Application


The NodeJs Application have http and ws services. The ws-connection is for sending messages to the client in realtime. This runs all fine!


But after some time i get an error like this:

Quote:
AH00326: Server ran out of threads to serve requests. Consider raising the ThreadsPerChild setting


I increase this setting but the error depents on the connected clients. I have the same behaviour like this guy here:

https://stackoverflow.com/questions/51841686/apache-keeps-an-active-worker-for-each-websocket-connection


I increase the ThreadsPerChild but the max value is 1920 (if i am right). But the target user-connections are > 3000.

Why did Apache start a worker for each client and hold them and is there a way to solve this?

OS: Windows 2012 R2 (64 Bit)


Bye, Dumbeldore ...
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James Blond
Moderator


Joined: 19 Jan 2006
Posts: 6661
Location: Germany, Next to Hamburg

PostPosted: Thu 29 Aug '19 14:58    Post subject: Reply with quote

Are there any other errors in the error log? Anything in the windows event log?
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