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From Philip Brusten <>
Subject [users@httpd] Proxy: 503 Service Unavailable
Date Fri, 06 Oct 2006 15:08:11 GMT

I've a proxy setup with Apache2.2.3 and mod_proxy.
It often happens that the connection to the backend server fails:
[error] (110)Connection timed out: proxy: HTTP: attempt to connect to ( failed

When this happens the worker is disabled for a while
[error] ap_proxy_connect_backend disabling worker for (

Usually the worker keeps disabled for 1 min. During that time I see the 
following errors in my logs:
[error] proxy: HTTP: disabled connection for (

The Clients receive a 503 Service Unavailable error, but when going 
directly to the backend server (not passing the reverse proxy) there is 
nothing wrong.

Is this a normal behavior?
Is it possible to shorten the time the worker is disabled?

Can somebody point this out for me?

Kind regards,

Philip Brusten

Brusten Philip
LUDIT - K.U.Leuven
W. de Croylaan 52A | 3001 Heverlee | Belgium 


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