On Mon, Dec 7, 2020 at 12:06 PM Patrick Donnelly <pdonnell@redhat.com> wrote:
Hi Dan & Janek,
On Sat, Dec 5, 2020 at 6:26 AM Dan van der Ster <dan@vanderster.com> wrote:
My understanding is that the recall thresholds (see my list below) should be scaled proportionally. OTOH, I haven't played with the decay rates (and don't know if there's any significant value to tuning those).
I haven't gone through this thread yet but I want to note for those reading that we do now have documentation (thanks for the frequent pokes Janek!) for the recall configurations:
https://docs.ceph.com/en/latest/cephfs/cache-configuration/#mds-recall
Please let us know if it's missing information or if something could be more clear.
I also now have a PR open for updating the defaults based on these and other discussions: https://github.com/ceph/ceph/pull/38574 Feedback welcome. -- Patrick Donnelly, Ph.D. He / Him / His Principal Software Engineer Red Hat Sunnyvale, CA GPG: 19F28A586F808C2402351B93C3301A3E258DD79D