MDS subtree pinning
Hi! As I'm reading through the documentation about subtree pinning, I was wondering if the following is possible. We've got the following directory structure. / /app1 /app2 /app3 /app4 Can I pin /app1 to MDS rank 0 and 1, the directory /app2 to rank 2 and finally /app3 and /app4 to rank 3? I would like to load balance the subfolders of /app1 to 2 (or 3) MDS servers. Best regards, Sake
Hi all! I have a few follow up questions about subtree pinning. Because the information isn't provided in the docs and couldnt find anything about it. Deployment via cephadm and using v17.2.7. 1. Can I pin directories before having multiple mds nodes? Like I have only 1 active mds and assign folder App2 to rank 1. 2. Is there already a feature request for pinning directories via the dashboard? Again, I couldn't find a request. 3. I believe in the past you needed to remove the manual pins before an upgrade, is this still the case? Best regards, Sake
Op 22-12-2023 13:43 CET schreef Sake Ceph <ceph@paulusma.eu>:
Hi!
As I'm reading through the documentation about subtree pinning, I was wondering if the following is possible.
We've got the following directory structure. / /app1 /app2 /app3 /app4
Can I pin /app1 to MDS rank 0 and 1, the directory /app2 to rank 2 and finally /app3 and /app4 to rank 3?
I would like to load balance the subfolders of /app1 to 2 (or 3) MDS servers.
Best regards, Sake _______________________________________________ ceph-users mailing list -- ceph-users@ceph.io To unsubscribe send an email to ceph-users-leave@ceph.io
Hi Sake, On Fri, Dec 22, 2023 at 7:44 AM Sake Ceph <ceph@paulusma.eu> wrote:
Hi!
As I'm reading through the documentation about subtree pinning, I was wondering if the following is possible.
We've got the following directory structure. / /app1 /app2 /app3 /app4
Can I pin /app1 to MDS rank 0 and 1,
This will be possible with: https://github.com/ceph/ceph/pull/52373 -- Patrick Donnelly, Ph.D. He / Him / His Red Hat Partner Engineer IBM, Inc. GPG: 19F28A586F808C2402351B93C3301A3E258DD79D
participants (2)
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Patrick Donnelly
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Sake Ceph