> On 10 Apr 2024, at 01:00, Eugen Block <ebl...@nde.ag> wrote:
> 
> I appreciate your message, it really sounds tough (9 months, really?!). But 
> thanks for the reassurance :-)

Yes, the total "make this project great again" tooks 16 month, I think. This my 
work

First problem after 1M objects in PG was a deletion [1]. It's just impossible 
to delete objects for the 'stray' PG
The second was - the code, that cares about nearfull & backfillfull just don't 
work for this OSD [2], because code use DATA field (the objects), instead RAW 
field (the DATA + RocksDB database) for computations
The third was minor, but WTF statistics metric issue [3]
And the last but not least (and still present in master) - when lock object 
acquired, this crashes replica OSD's in acting set, when object is absent on 
primary OSD [4]. This may ruin client IO until OSD's restart & recovery

For current time, not all collection_list fixes was merged [5], but since 
14.2.22 much better than before...

> They don’t have any other options so we’ll have to start that process anyway, 
> probably tomorrow. We’ll see how it goes…


Yes, you just have to start, and then we’ll see


Thanks,
k

[1] https://tracker.ceph.com/issues/47044 + 
https://tracker.ceph.com/issues/45765 -> https://tracker.ceph.com/issues/50466
[2] https://tracker.ceph.com/issues/50533
[3] https://tracker.ceph.com/issues/52512
[4] https://tracker.ceph.com/issues/52513
[5] https://tracker.ceph.com/issues/58274
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