Merge pull request #24301 from tchaikov/wip-async-connect-timeout

msg/async: keep connection alive only actually sending

Reviewed-by: Ricardo Dias <rdias@suse.com>

src/msg/async/AsyncConnection.cc

@@ -513,7 +513,6 @@ int AsyncConnection::send_message(Message *m)
     return 0;
   }
 
-  last_active = ceph::coarse_mono_clock::now();
   // we don't want to consider local message here, it's too lightweight which
   // may disturb users
   logger->inc(l_msgr_send_messages);