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ftn
2010 Dec 01
14
Unicorn and HAProxy, 500 Internal errors after checks
Hi,
This morning, while checking for a correct deployment, we found out
that the Unicorns we are using were sending 500 Internal errors very
frequently to the HAProxy that sits in front of them. After some
investigation, It turned out that HAProxy checks the backend by
opening and closing a connection to the unicorn. Unfortunately the
Unicorns we use ( v 0.990.0 ) will try to reply to this probe