1QB-BLACKBOX(8)              System Manager's Manual             QB-BLACKBOX(8)
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NAME

6       qb-blackbox - Display "flight data" from the "blackbox".
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SYNOPSIS

9       qb-blackbox [blackbox-file...]
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DESCRIPTION

12       qb-blackbox  prints  out  the  logs  (including  debug  logs) that were
13       recorded using libqb's blackbox mechanism.
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15   Portability notes
16       Due to variations amongst platforms, some of which directly impact  the
17       libqb's  blackbox  format  handling (e.g. page size), there's currently
18       only the commitment that qb-blackbox shall decode  the  blackbox  files
19       recorded  at  the  same  platform (plus the same page size) while using
20       libqb compiled  with  the  same  relevant  compile-time  options  (e.g.
21       USE_CACHE_LINE_ALIGNMENT)  as  linked to this decoder.  Otherwise, your
22       mileage may vary.
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EXAMPLES

25       Get info to help developers diagnose a crash.
26              $ qb-blackbox /var/lib/corosync/fdata
27              Dumping the contents of /var/lib/corosync/fdata
28              Mar 23 20:58:57 message_handler_orf_token():3677 install  seq  0
29              aru 0 high seq received 0
30              Mar  23  20:58:57  message_handler_orf_token():3696 retrans flag
31              count 4 token aru 0 install seq 0 aru 0 0
32              Mar 23 20:58:57 old_ring_state_reset():1487 Resetting  old  ring
33              state
34              Mar 23 20:58:57 deliver_messages_from_recovery_to_regular():1693
35              recovery to regular 1-0
36              Mar 23 20:58:57  memb_state_operational_enter():1779  Delivering
37              to app 1 to 0
38              Mar 23 20:58:57 sync_abort():594 ENTERING sync_abort()
39              Mar    23    20:58:57    sync_save_transitional():586   ENTERING
40              sync_save_transitional()
41              Mar 23 20:58:57 member_object_joined():301 Member  joined:  r(0)
42              ip(192.168.122.1)
43              Mar 23 20:58:57 sync_abort():594 ENTERING sync_abort()
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SEE ALSO

46       qblog.h(3)
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AUTHOR

49       Angus Salkeld
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51                                  2017-07-27                    QB-BLACKBOX(8)
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