Hi David,
Zitat von David C <[email protected]>:
Hi Jens
We also see these messages quite frequently, mainly the "replicating
dir...". Only seen "failed to open ino" a few times so didn't do any real
investigation. Our set up is very similar to yours, 12.2.1, active/standby
MDS and exporting cephfs through KNFS (hoping to replace with Ganesha
soon).
been there, done that - using Ganesha more than doubled the run-time
of our jobs, while with knfsd, the run-time is about the same for
CephFS-based and "local disk"-based files. But YMMV, so if you see
speeds with Ganesha that are similar to knfsd, please report back with
details...
Interestingly, the paths reported in "replicating dir" are usually
dirs exported through Samba (generally Windows profile dirs). Samba runs
really well for us and there doesn't seem to be any impact on users. I
expect we wouldn't see these messages if running active/active MDS but I'm
still a bit cautious about implementing that (am I being overly cautious I
wonder?).
From what I can see, it would have to be A/A/P, since MDS demands at
least one stand-by.
Regards,
Jens
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