[Lustre-discuss] llog_origin_handle_cancel and other LustreErrors

[Niklas Edmundsson]

Hi again!

Same setup as before (Lustre 1.6.2 + 2.6.18 kernel).

This time things suddenly started to be very slow (as in periodically 
stalling), and we found a bunch of llog_ LustreErrors on the MDS. Some 
time later stuff had automagically recovered and is back to normal 
speed.

Any idea on the meaning/cause of these errors?

What are the seriousness of "LustreError" errors in general? Does it 
mean "this is bad, but normal", "this is bad, shouldn't happen" or 
"you've found yet another bug"?

-------------------8<---------------------------
[20816.788257] LustreError: 6558:0:(llog_server.c:433:llog_origin_handle_cancel()) cancel 124 llog-records failed: -22
[20818.183547] LustreError: 6111:0:(llog_server.c:433:llog_origin_handle_cancel()) cancel 124 llog-records failed: -22
[20818.619593] LustreError: 6113:0:(llog_server.c:433:llog_origin_handle_cancel()) cancel 124 llog-records failed: -22
[20883.882198] LustreError: 6109:0:(llog_lvfs.c:597:llog_lvfs_create()) error looking up logfile 0xa00008:0x7a7c6d4f: rc -2
[20883.893487] LustreError: 6109:0:(llog_cat.c:158:llog_cat_id2handle()) error opening log id 0xa00008:7a7c6d4f: rc -2
[20883.904307] LustreError: 6109:0:(llog_cat.c:309:llog_cat_cancel_records()) Cannot find log 0xa00008
[20883.913791] LustreError: 6109:0:(llog_server.c:433:llog_origin_handle_cancel()) cancel 124 llog-records failed: -22
[21077.251091] LustreError: 6556:0:(llog_server.c:433:llog_origin_handle_cancel()) cancel 124 llog-records failed: -22
[21077.298404] LustreError: 6417:0:(llog_server.c:433:llog_origin_handle_cancel()) cancel 124 llog-records failed: -22
[21077.309636] LustreError: 6417:0:(llog_server.c:433:llog_origin_handle_cancel()) Skipped 3 previous similar messages
[21077.372758] LustreError: 6418:0:(llog_server.c:433:llog_origin_handle_cancel()) cancel 124 llog-records failed: -22
[21077.383486] LustreError: 6418:0:(llog_server.c:433:llog_origin_handle_cancel()) Skipped 17 previous similar messages
[21423.962709] LustreError: 6558:0:(llog_server.c:433:llog_origin_handle_cancel()) cancel 124 llog-records failed: -22
[21423.973539] LustreError: 6558:0:(llog_server.c:433:llog_origin_handle_cancel()) Skipped 1 previous similar message
[21874.084438] LustreError: 6109:0:(llog_server.c:433:llog_origin_handle_cancel()) cancel 124 llog-records failed: -22
[21882.561323] LustreError: 6417:0:(llog_server.c:433:llog_origin_handle_cancel()) cancel 124 llog-records failed: -22
-------------------8<---------------------------



/Nikke
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