Display "flight data" from the corosync "blackbox".
corosync-fplay
corosync-fplay Print out the logs (including debug logs) that were recorded before the last corosync crash.
Get info to help developers diagnose a crash.
$ corosync-fplay
Starting replay: head [74205] tail [0]
rec=[1] Log Message=Corosync Cluster Engine ('1.2.1'): started and ready to provide service.
[...]
rec=[2607] Log Message=Delivering MCAST message with seq a to pending delivery queue
rec=[2608] Log Message=downlist received left_list: 2
rec=[2609] Log Message=chosen downlist from node r(0) ip(192.168.100.11)
Finishing replay: records found [2609]
Angus Salkeld