Sector (No.) , running PreCommit2 error: sealed cid mismatching!!!

[Shekelme]

The following error occurs on some recovered sectors:

2021-12-25T12:02:35.621 INFO storage_proofs_core::data > dropping data /media/sn750/recover-57853956948449/sealed/s-t01222595-5785 2021-12-25T12:02:38.745 INFO filecoin_proofs::api::seal > seal_pre_commit_phase2:finish 2021-12-25T12:02:38.745 INFO filcrypto::proofs::api > seal_pre_commit_phase2: finish INFO[2021-12-25T12:02:38+03:00] Complete PreCommit2, sector ({1222595 5785}) ERRO[2021-12-25T12:02:38+03:00] Sector (5785) , running PreCommit2 error: sealed cid mismatching!!! (sealedCID: bagboea4b5abcb42beroeboobypwj2xvsg2ryc5xttathfol3tre3cioidvpjyhb5, newSealedCID: bagboea4b5abcbtgdq542zczhlmvif7ca5brg374gg5oo5hxfbc6xyjgiuazrpuao) INFO[2021-12-25T12:05:20+03:00] Complete sector (5785)

What causes it and how to fix it?

[dayou5168]

Interesting. never saw this before. @FroghubMan can you help here.

[FroghubMan]

We also found the same problem. About 1% of sectors cannot be recovered correctly. The problem has not been identified, but it is suspected that the problem may occur when the first seal produces wrong results (small probability event). The feedback from #5 and #8 is the same.

[Shekelme]

I am trying to do a re-recovery for such sectors, but it does not help in all cases.

[dayou5168]

@Shekelme Can you provide your miner id and sector number? maybe we can try one recovery test.

[Shekelme]

The numbers are all in OP ) Miner 1222595 , sector 5785. But also 7370, 13197 for example.

[dayou5168]

Looks great.

[FroghubMan]

If a small number of sectors cannot be recovered after repeated attempts, it is recommended to terminate as soon as possible.

[FroghubMan]

I am very curious, what kind of zfs failure caused sector data loss?

[FroghubMan]

The numbers are all in OP ) Miner 1222595 , sector 5785. But also 7370, 13197 for example.

In recent days, my worker machines have been very busy. There may be no way to help you.

[Shekelme]

And a fresh one: 6028 For ZFS failure: link

[s1mple1122]

I found that the probability of being unable to recover is greater than 1%. I have tested many sectors and it seems that they are basically unable to recover. Now I still can't find the reason. I even modified the code myself, cancelled nodeapi and manually passed in ticket. In either case, the recovered CID is incorrect

[dayou5168]

@s1mple1122 you should check your chain data source if you have a larger portion of sectors that can't recover. maybe try to use a full node