Hi, I've read the recommendation from CERN about the number of OSD maps ( https://cds.cern.ch/record/2015206/files/CephScaleTestMarch2015.pdf, page 3) and I would like to know if there is any negative impact from these changes:
[global] osd map message max = 10 [osd] osd map cache size = 20 osd map max advance = 10 osd map share max epochs = 10 osd pg epoch persisted max stale = 10 We are running Hammer with nowhere closer to 7000 OSDs, but I don't want to waste memory on OSD maps which are not needed. Are there are large production deployments running with these or similar settings? Thank you, George
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