Bluestore Compression not inheriting pool option

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Hi All,

Has anyone been testing the bluestore pool compression option?

I have set compression=snappy on a RBD pool. When I add a new bluestore OSD,
data is not being compressed when backfilling, confirmed by looking at the
perf dump results. If I then set again the compression type on the pool to
snappy, then immediately data starts getting compressed. It seems like when
a new OSD joins the cluster, it doesn't pick up the existing compression
setting on the pool.

Anyone seeing anything similar? I will raise a bug if anyone can confirm.

Nick

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