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Hello,

In nova database lot of data like quotas, reservations, security_groups 
and other are not phisically removed but are marked as deleted. So for 
example after tempest run on such infrastructure there is a lot of 
entries marked as deleted. So I' thinking for what all that data is 
stored in database and what could be consequences of removing it from 
database. Is it stored only for some kind of "history" what was happend 
or maybe is is important for some functions? Thanks in advance for any 
info about that or for any link to website where it is described :)

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Pozdrawiam
Sławek Kapłoński
slawek at kaplonski.pl