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)