Hi David, Zitat von David C <dcsysengineer@xxxxxxxxx>:
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 _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
