On 3/28/21 4:58 AM, Tony Liu wrote:
I don't see any problems yet. All OSDs are working fine. Just that 1.8GB free memory concerns me. I know 256GB memory for 10 OSDs (16TB HDD) is a lot, I am planning to reduce it or increate osd_memory_target (if that's what you meant) to boost performance. But before doing that, I'd like to understand what's taking so much buff/cache and if there is any option to control it.
You can enable /disable bluefs_buffered_io (true / false). It was the default for a long time. It has been disabled for some time due to a RGW issue. But I believe it has been re-enabled again. I would leave it on.
I would find a lot of unused memory an issue. Linux wil generally use as much memory to buffer / cache as possible.
Gr. Stefan _______________________________________________ ceph-users mailing list -- ceph-users@ceph.io To unsubscribe send an email to ceph-users-le...@ceph.io
