The truth of the matter is that folks try to boil this down to some kind
of hard and fast rule but it's often not that simple. With our current
default settings for pglog, rocksdb WAL buffers, etc, the OSD basically
needs about 1GB of RAM for bare-bones operation (not under recovery or
extreme
: ceph-users@lists.ceph.com
Asunto: Re: [ceph-users] OSD RAM recommendations
> I'm a bit confused by the RAM recommendations for OSD servers. I have
> also seen conflicting information in the lists (1 GB RAM per OSD, 1 GB
> RAM per TB, 3-5 GB RAM per OSD, etc.). I guess I'm a l
> I'm a bit confused by the RAM recommendations for OSD servers. I have
> also seen conflicting information in the lists (1 GB RAM per OSD, 1 GB
> RAM per TB, 3-5 GB RAM per OSD, etc.). I guess I'm a lot better with a
> concrete example:
I think it depends on the usagepattern - the more the
I'm a bit confused by the RAM recommendations for OSD servers. I have
also seen conflicting information in the lists (1 GB RAM per OSD, 1 GB
RAM per TB, 3-5 GB RAM per OSD, etc.). I guess I'm a lot better with a
concrete example:
Say this is your cluster (using Bluestore):
8 Machines serving
