[openstack-dev] [Nova] Handling soft delete for instance rows in a new cells database

Jay Pipes jaypipes at gmail.com
Thu Nov 27 15:59:09 UTC 2014

On 11/26/2014 04:24 PM, Mike Bayer wrote:
>> Precisely. Why is the RDBMS the thing that is used for
>> archival/audit logging? Why not a NoSQL store or a centralized log
>> facility? All that would be needed would be for us to standardize
>> on the format of the archival record, standardize on the things to
>> provide with the archival record (for instance system metadata,
>> etc), and then write a simple module that would write an archival
>> record to some backend data store.
>> Then we could rid ourselves of the awfulness of the shadow tables
>> and all of the read_deleted=yes crap.
> +1000 - if we’re really looking to “do this right”, as the original
> message suggested, this would be “right”.  If you don’t need these
> rows in the app (and it would be very nice if you didn’t), dump it
> out to an archive file / non-relational datastore.   As mentioned
> elsewhere, this is entirely acceptable for organizations that are
> “obliged” to store records for auditing purposes.   Nova even already
> has a dictionary format for everything set up with nova objects, so
> dumping these dictionaries out as JSON would be the way to go.

OK, spec added:



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