corosync-blackbox man page

corosync-blackbox — Dump live "flight data" from the corosync "blackbox".


corosync-blackbox Trigger corosync to write it's "flight data" out to file and then run qb-blackbox which prints it out.


Print the current "flight data".
$ corosync-blackbox
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(
Finishing replay: records found [2609]

See Also

qb-blackbox(8), corosync-cmapctl(8)


Angus Salkeld


Explore man page connections for corosync-blackbox(8).