hi igor - On 5/19/20 3:23 PM, Igor Fedotov wrote:
> slow_used_bytes is non-zero hence you have a spillover. you are absolutely right, we do have spillovers on a large number of osds. ceph tell osd.* compact is running right now. > Additionally your DB volume size selection isn't perfect. For optimal > space usage RocksDB/BlueFS require DB volume sizes to aligned with the > following sequence (a bit simplified view): > > 3-6GB, 30-60GB, 300+GB. This has been discussed in this mailing list > multiple times. > > Using DB volume size (15 GB in you case) out of these ranges cause > wasting of space from one side and early spillovers from another. > > Hence this worths adjusting in long term too. yes, adding additional nvmes to the cluster is on our to do-list. thank you, thoralf.
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