Hello Frank, On Wed, Nov 16, 2022 at 5:38 AM Frank Schilder <frans@xxxxxx> wrote: > > Hi all, > > I have a question about ephemeral pinning on octopus latest. We have ephemeral pinning set on all directories that are mounted (well on all their parents), like /home etc. Every mount point of a ceph file system should, therefore, be pinned to a specific and fixed MDS rank. However, in the log I see a lot of slow ops warnings like this one: > > slow request 33.765074 seconds old, received at 2022-11-16T11:30:28.340294+0100: internal op exportdir:mds.0:34770855 currently failed to wrlock, waiting > > I don't understand why MDSes still export directories between each other. Am I misunderstanding the warning? What is happening here and why are these ops there? Does this point to a config problem? It may be whatever /home/X directory was pruned from the cache, someone did /readdir on that directory thereby loading it into cache, then the MDS authoritative for /home (probably 0?) exported that directory to wherever it should go. -- Patrick Donnelly, Ph.D. He / Him / His Principal Software Engineer Red Hat, Inc. GPG: 19F28A586F808C2402351B93C3301A3E258DD79D _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
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