1 May
2020
1 May
'20
11 a.m.
I've seen issues with clients reconnects on older kernels, yeah. They
sometimes get stuck after a network failure
Paul
--
Paul Emmerich
Looking for help with your Ceph cluster? Contact us at https://croit.io
croit GmbH
Freseniusstr. 31h
81247 München
www.croit.io
Tel: +49 89 1896585 90
On Thu, Apr 30, 2020 at 10:19 PM Gregory Farnum <gfarnum(a)redhat.com> wrote:
On Tue, Apr 28, 2020 at 11:52 AM Robert LeBlanc
<robert(a)leblancnet.us>
wrote:
In the Nautilus manual it recommends >= 4.14 kernel for multiple active
MDSes. What are the potential issues for running the 4.4 kernel with
multiple MDSes? We are in the process of upgrading the clients, but at
times overrun the capacity of a single MDS server.
I don't think this is documented specifically; you'd have to go
through the git logs. Talked with the team and 4.14 was the upstream
kernel when we marked multi-MDS as stable, with the general stream of
ongoing fixes that always applies there.
There aren't any known issues that will cause file consistency to
break or anything; I'd be more worried about clients having issues
reconnecting when their network blips or an MDS fails over.
-Greg
MULTIPLE ACTIVE METADATA SERVERS
<
https://docs.ceph.com/docs/nautilus/cephfs/kernel-features/#multiple-active…
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.
Thank you,
Robert LeBlanc
----------------
Robert LeBlanc
PGP Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1
_______________________________________________
ceph-users mailing list -- ceph-users(a)ceph.io
To unsubscribe send an email to ceph-users-leave(a)ceph.io
_______________________________________________
ceph-users mailing list -- ceph-users(a)ceph.io
To unsubscribe send an email to ceph-users-leave(a)ceph.io