HAProxy Layer 4 Timeout Error

haproxy

I was trying to checkout our application code from svn server to Amazon EC2 instance. Our SVN Server is behind the HAproxy Loadbalancer. Unfortunately the checkout process didn't success and I checked the haproxy,I found the error as Layer 4 timeout. Does the error have anything to do with Health Check issue?

Thanks
Bishal

Best Answer

Yes, this means HAProxy can not connect to your SVN server on its designated port (usually port 3690).

Have you got a route from the HAProxy machine, to the SVN server? (i.e. can you ping it)? If so, can you connect to the port via telnet or netcat (nc). 

telnet <SVN_IP> <SVN_PORT>

Obviously if HAProxy can not talk to the SVN server, then it can not forward on the TCP stream.

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