All hosts stuck in connecting/not responding state until engine restarted

Rephrase Heartbeat exceeded error message
Log response when message not found

Rephrase Heartbeat exceeded error message
Connections shouldn't be closed after the connection to the host was recovered

Don't retry async calls on connection error

Heartbeat logging

Heartbeat logging improvements

Release host level lock faster

host to id mapping needs to be cleared on failure

Adding callbacks infrastructure to use non-blocking threads

send correlation id to the server

java exception visible in Events when upgrade check is done on recently fenced host
packaging: spec: move to headless java

remove end of line before command

incomplete message BZ #1425725

process messages one by one

handle ssl closed status

Make sure to match host properly
Add cause exception upon re-throwing IOException in ReactorClient
Frame split when using multiple hosts