[ceph-users] Re: Memory footprint of increased PG number

2023-11-09 Thread Eugen Block
I was going through the hardware recommendations for a customer and wanted to cite the memory section from the current docs [1]: Setting the osd_memory_target below 2GB is not recommended. eph may fail to keep the memory consumption under 2GB and extremely slow performance is likely. Settin

[ceph-users] Re: Memory footprint of increased PG number

2023-11-09 Thread Eugen Block
Hi, I don't think increasing the PGs has an impact on the OSD's memory, at least I'm not aware of such reports and haven't seen it myself. But your cluster could get in trouble as it already is, only 24 GB for 16 OSDs is too low. It can work (and apparently does) when everything is calm,