Hi Jesse, Are you by chance using kernel 3.10.0-... from EL7 ? The EL kernels include backports from newer upstream kernels, and if I look at kernel-3.10.0-1160.102.1.el7 for example, I see commits in there at least up to date with upstream 4.17. So that might explain your observation! Cheers, Dan On Tue, Jan 14, 2025 at 4:24 PM Jesse Galley <jesse.galley@xxxxxxxxxxxx> wrote: > > Hello! > > The documentation on kernel client features states: "The feature has been > supported since the Luminous release. It is recommended to use Linux kernel > clients >= 4.14 when there are multiple active MDS." > > My question is: what is the actual impact of using an old (3.10) client > with a multi-mds FS? > > I used a 3.10 client to do some reads and writes of metadata pinned to > different MDSs, and it all ostensibly worked fine. > > Is it purely a performance problem? Or is there a more serious issue > lurking that my simple tests would not reveal. > > Thanks! > > *Jesse Galley* > > *Director, Mail Platform & Migrations, Hostopia* > > *C: 416.816.0866* > > *jesse.galley@xxxxxxxxxxxx <jesse.galley@xxxxxxxxxxxx>* > _______________________________________________ > ceph-users mailing list -- ceph-users@xxxxxxx > To unsubscribe send an email to ceph-users-leave@xxxxxxx -- Dan van der Ster CTO @ CLYSO Try our Ceph Analyzer -- https://analyzer.clyso.com/ https://clyso.com | dan.vanderster@xxxxxxxxx _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
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