07-Mar-16 21:28, Gregory Farnum пишет:
On Fri, Mar 4, 2016 at 11:56 PM, Mike Almateia <mike.almateia@xxxxxxxxx> wrote:
Hello Cephers!
On my small cluster I see this:
****
[root@c1 ~]# rados df
pool name KB objects clones degraded unfound
rd rd KB wr wr KB
data 0 0 0 0 0
6 4 158212 215700473
hotec 797656118 25349075 0 0 0
370557 163024145 69629631 17786794779
rbd 0 0 0 0 0
0 0 0 0
total used 2080528140 25349075
total avail 234455230732
total space 236596810264
[root@c1 ~]#
****
Why the string "total used" show different value? It's need to be
"797656118" I think.
Pools:
* data - EC pool 3+2
* hotec - replicated pool size 2, cache tier for 'data'
Any one can explain this?
Yeah, the per-pool stats are the amount of data in the pool, but the
totals include replication/EC overheads, plus metadata like the OSD
map storage and the per-OSD leveldb instances which (unfortunately)
aren't counted in the per-pool stats.
-Greg
Oh I see. Thanks Greg!
If you don't know this - information from the 'rados df' can really confuse.
--
Mike, runs!
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