On 3/9/21 4:03 PM, Jesper Lykkegaard Karlsen wrote:
Dear Ceph’ers
I am about to upgrade MDS nodes for Cephfs in the Ceph cluster (erasure code
8+3 ) I am administrating.
Since they will get plenty of memory and CPU cores, I was wondering if it would
be a good idea to move metadata OSDs
> On Mar 26, 2021, at 6:31 AM, Stefan Kooman wrote:
>
> On 3/9/21 4:03 PM, Jesper Lykkegaard Karlsen wrote:
>> Dear Ceph’ers
>> I am about to upgrade MDS nodes for Cephfs in the Ceph cluster (erasure code
>> 8+3 ) I am administrating.
>> Since they will get plenty of memory and CPU cores, I
Hi Jesper,
It could make sens only if:
1. the metadata the client's asking for was not already cached in RAM
2. the metadata pool was hosted on very low latency devices like NVMes
3. you could make sure that each client's metadata requests would be
served from PGs for which the primary OSD
