I'm running into a problem on a really large directory of over a million
files (don't ask, my users are clueless). Anyway, I'm trying to to use
Ceph as backup storage for their filesystem. As I rsync the directory,
it started giving me a "No space left on device" for this directory,
even though the ceph filesystem is at 66%, and no individual OSD is
fuller than 82%. If I go to the directory and try to do a "touch foo",
it gives me the same "No space left on device", but if I go to the
parent directory and try to copy a file there, it is fine. So I must be
running into some per-directory limit. Any ideas of what I can do to fix
this problem? This is Ceph 10.2.5.
Thanks!
Jorge
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