Does Fabio support connection shutdown when a backend fails

[nmaludy]

We're looking at using our existing Fabio deployment to load balance a Patroni. Patroni's health checks return HTTP success when the node is the master and return HTTP errors when a node is a standby.

When a fail over occurs we need to terminate the existing TCP connections so they connect to the new master. In HAproxy this can be accomplished by the on-marked-down shutdown-sessions config setting.

Does Fabio support something like this?

[nmaludy]

Here is the reference HAproxy configuration https://github.com/zalando/patroni/blob/master/haproxy.cfg