1QB-BLACKBOX(8) System Manager's Manual QB-BLACKBOX(8)
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6 qb-blackbox - Display "flight data" from the "blackbox".
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9 qb-blackbox [blackbox-file...]
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12 qb-blackbox prints out the logs (including debug logs) that were
13 recorded using libqb's blackbox mechanism.
14 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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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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46 qblog.h(3)
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49 Angus Salkeld
50 2017-07-27 QB-BLACKBOX(8)