[PVE-User] Snapshot rollback slow

[Marco Gaiarin]

Mandi! Marcus Haarmann
  In chel di` si favelave...

> However, the rollback of snapshot took > 1 hour and during this timeframe, the whole cluster 
> was reacting veeeeery slow. 

AFAIK this is a 'feature' of ceph (again AFAIK fixed/better handled in
recent ceph version and on bluestore): a deletion (of a volume or a
snapshot rollback) trigger a 'write amplification'.

In older ceph version there's some workarounds...


Sorry for be not so precise, look at ceph mailing list archive for more
precise info...

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