http2 connection keepalive broken
with the change http://svn.apache.org/r1819214 the keepalive handling in HTTP/2 was broken, as reported here
If the mpm_event connection state handling is not suitable to honoring a keepalive setting, we need to fix this. Keeping idle connections parked in fdqueue without occupying a thread seems to be one of event's advantages. mod_http2 did enable this by keeping the connection in CONN_STATE_WRITE_COMPLETION. The change places it in CONN_STATE_LINGER which means it is closed after 1 second, always.
Since you know event's connection state handling much better than me: what can we do to fix this?