Dear Paul,
thanks, here goes (output of "ceph -s", etc.):
https://gist.github.com/oschulz/7d637c7a1dfa28660b1cdd5cc5dffbcb
> Also please run "ceph pg X.YZ query" on one of the PGs not backfilling.
Silly question: How do I get a list of the PGs not backfilling?
On 06/20/2018 04:00 PM, Paul Emmerich wrote:
Can you post the full output of "ceph -s", "ceph health detail, and ceph osd df
tree
Also please run "ceph pg X.YZ query" on one of the PGs not backfilling.
Paul
2018-06-20 15:25 GMT+02:00 Oliver Schulz <[email protected]
<mailto:[email protected]>>:
Dear all,
we (somewhat) recently extended our Ceph cluster,
and updated it to Luminous. By now, the fill level
on some ODSs is quite high again, so I'd like to
re-balance via "OSD reweight".
I'm running into the following problem, however:
Not matter what I do (reweigt a little, or a lot,
or only reweight a single OSD by 5%) - after a
while, backfilling simply stops and lots of objects
stay misplaced.
I do have up to 250 PGs per OSD (early sins from
the first days of the cluster), but I've set
"mon_max_pg_per_osd = 400" and
"osd_max_pg_per_osd_hard_ratio = 1.5" to compensate.
How can I find out why backfill stops? Any advice
would be very much appreciated.
Cheers,
Oliver
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