Re: [mod_cluster-dev] Handling crashed/hung AS nodes

Currently, the HAModClusterService (where httpd communication is coordinated by an HA singleton) does not react to crashed/hung members. Specifically, when the HA singleton gets a callback that the group membership changes, it does not send any REMOVE-APP messages to httpd on behalf of the member that just left. Currently, httpd will detect the failure (via a disconnected socket) on its own and sets its internal state accordingly, e.g. a STATUS message will return NOTOK.