Sure, I would recommend the below in sysctl: net.ipv4.tcp_keepalive_time=5 net.ipv4.tcp_keepalive_probes=5 net.ipv4.tcp_keepalive_intvl=1 This will tune

Sure, I would recommend the below in sysctl: net.ipv4.tcp_keepalive_time=5 net.ipv4.tcp_keepalive_probes=5 net.ipv4.tcp_keepalive_intvl=1 This will tune the TCP keepalives to decrease the time it takes for most client stacks to realize a server has gone away. It should also be configured on the servers themselves that are participating in the cluster. As for rabbitmq tuning I recommend these settings at a minimum: [ {rabbit, [{tcp_listen_options, [binary, {packet, raw}, {reuseaddr, true}, {backlog, 128}, {nodelay, true}, {exit_on_close, false}, {keepalive, true}]} ]} ].