Reading the thread "s3 requires twice the space it should use", Boris pointed out that the fragmentation for the osds is around 0.8-0.9:
> On Thu, Apr 15, 2021 at 8:06 PM Boris Behrens <b...@kervyn.de> wrote:
>> I also checked the fragmentation on the bluestore OSDs and it is around
>> 0.80 - 0.89 on most OSDs. yikes.
>> [root@s3db1 ~]# ceph daemon osd.23 bluestore allocator score block
>> {
>> "fragmentation_rating": 0.85906054329923576
>> }
And that made me wonder what is the current recommended (and not recommended)
way to handle and reduce the fragmentation of the existing OSDs.
Reading around I would think of tweaking the min_alloc_size_{ssd,hdd} and
redeploying those OSDs, but I was unable to find much else, I wonder what do
people do?
ps. There was another thread that got no replies asking something similar (and
a bunch of other things):
https://lists.ceph.io/hyperkitty/list/ceph-users@ceph.io/message/3PITWZRNX7RFRQNG33VSNKYGOO2IFMZG/
signature.asc
Description: PGP signature
_______________________________________________ ceph-users mailing list -- ceph-users@ceph.io To unsubscribe send an email to ceph-users-le...@ceph.io
