Lustre discuss - Sep 2007 - llog_origin_handle_cancel and other LustreErrors

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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