Hi Sage,
I don't believe so, I'm loading the objects directly from another host
(which is running 0.64 built from src) with:
$ rados -m 192.168.122.21 -p obj put smallnode$n.dat smallnode.dat #
$n=0->99
and the osd's are all running 0.56.6, so I don't think there is any
kernel rbd or librbd involved.
I did try:
$ ceph osd crush tunables optimal
In one run - no difference.
I have updated to 0.61.4 and am running the test again, will update with
the results!
Cheers
Mark
On 05/07/13 16:01, Sage Weil wrote:
Hi Mark,
If you're not using a kernel cephfs or rbd client older than ~3.9, or
ceph-fuse/librbd/librados older than bobtail, then you should
ceph osd crush tunables optimal
and I suspect that this will suddenly work perfectly. The defaults are
still using semi-broken legacy values because client support is pretty
new. Trees like yours, with sparsely populated leaves, tend to be most
affected.
(I bet you're seeing the rack separation rule violated because the
previous copy of the PG was already there and ceph won't throw out old
copies before creating new ones.)
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