Hi all,
Following some cephfs issues today we have a stable cluster but the
num_strays is incorrect.
After starting the mds, the values are reasonable, but they very soon
underflow and start showing 18E (2^64 - a few)
---------------mds---------------- --mds_cache--- ------mds_log------
-mds_mem- ----mds_server----- mds_ ---objecter---
req rlat fwd inos caps exi imi |stry recy recd|subm evts segs
repl|ino dn |hcr hcs hsr cre |sess|actv rd wr |
129 0 0 253k 1.9k 0 0 |246 0 0 | 5 4.0k 5 0
|253k 254k|129 0 0 0 |119 | 3 1 2
8.2k 0 0 253k 1.9k 0 0 |129 0 0 |395 4.4k 7 0
|253k 254k|8.2k 11 0 0 |119 | 0 33 517
9.7k 0 0 253k 1.8k 0 0 |181 0 0 |302 4.7k 7 0
|253k 254k|9.7k 5 0 0 |119 | 1 44 297
10k 0 0 253k 1.8k 0 0 |217 0 0 |382 5.1k 7 0
|253k 254k| 10k 11 0 0 |119 | 0 54 405
9.0k 0 0 253k 1.7k 0 0 |205 0 0 |386 5.5k 8 0
|253k 254k|9.0k 4 0 0 |119 | 1 46 431
8.2k 0 0 253k 1.7k 0 0 |161 0 0 |326 5.8k 8 0
|253k 254k|8.2k 6 0 0 |119 | 1 37 397
8.0k 0 0 253k 1.6k 0 0 |135 0 0 |279 6.1k 8 0
|253k 254k|8.0k 4 0 0 |119 | 1 31 317
9.2k 0 0 253k 1.6k 0 0 | 18E 0 0 |153 6.2k 8 0
|253k 254k|9.2k 6 0 0 |119 | 1 2 265
8.2k 0 0 253k 1.7k 0 0 | 18E 0 0 | 40 6.3k 8 0
|253k 254k|8.2k 5 0 0 |119 | 3 3 17
Is there a way to reset the num_strays to the correct number of strays ?
# for i in `seq 600 609`; do rados --cluster=dwight listomapvals -p
cephfs_metadata ${i}.00000000 2>&1 | wc -l; done
95
220
91
173
567
1578
1042
754
445
261
Cheers, Dan
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