Hi Denis,we observed the same behaviour here. The cause was that the number of iops discovered at OSD startup was way too high. In our setup the rocksdb is on flash.
When I set osd_mclock_max_capacity_iops_hdd to a value that the HDDs could handle, the situation was resolved, clients got ther fair share of IO.
Hope this helps, Daniel -- Daniel Schreiber Facharbeitsgruppe Systemsoftware Universitaetsrechenzentrum Technische Universität Chemnitz Straße der Nationen 62 (Raum B303) 09111 Chemnitz Germany Tel: +49 371 531 35444
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