QB-BLACKBOX(8)              System Manager's Manual             QB-BLACKBOX(8)

NAME
       qb-blackbox - Display "flight data" from the "blackbox".

SYNOPSIS
       qb-blackbox [blackbox-file...]

DESCRIPTION
       qb-blackbox prints out the logs (including debug logs) that were
       recorded using libqb's blackbox mechanism.

   Portability notes
       Due to variations amongst platforms, some of which directly impact the
       libqb's blackbox format handling (e.g. page size), there's currently
       only the commitment that qb-blackbox shall decode the blackbox files
       recorded at the same platform (plus the same page size) while using
       libqb compiled with the same relevant compile-time options (e.g.
       USE_CACHE_LINE_ALIGNMENT) as linked to this decoder.  Otherwise, your
       mileage may vary.

EXAMPLES
       Get info to help developers diagnose a crash.
              $ qb-blackbox /var/lib/corosync/fdata
              Dumping the contents of /var/lib/corosync/fdata
              Mar 23 20:58:57 message_handler_orf_token():3677 install seq 0
              aru 0 high seq received 0
              Mar 23 20:58:57 message_handler_orf_token():3696 retrans flag
              count 4 token aru 0 install seq 0 aru 0 0
              Mar 23 20:58:57 old_ring_state_reset():1487 Resetting old ring
              state
              Mar 23 20:58:57 deliver_messages_from_recovery_to_regular():1693
              recovery to regular 1-0
              Mar 23 20:58:57 memb_state_operational_enter():1779 Delivering
              to app 1 to 0
              Mar 23 20:58:57 sync_abort():594 ENTERING sync_abort()
              Mar 23 20:58:57 sync_save_transitional():586 ENTERING
              sync_save_transitional()
              Mar 23 20:58:57 member_object_joined():301 Member joined: r(0)
              ip(192.168.122.1)
              Mar 23 20:58:57 sync_abort():594 ENTERING sync_abort()

SEE ALSO
       qblog.h(3)

AUTHOR
       Angus Salkeld

                                  2017-07-27                    QB-BLACKBOX(8)