[389-devel] single valued attribute update resolution
Rich Megginson
rmeggins at redhat.com
Wed Apr 30 13:43:04 UTC 2014
On 04/25/2014 07:43 AM, Ludwig Krispenz wrote:
> There are still scenarios where replication can lead to inconsistent
> states for single valued attributes, which I think has two reasons:
> - for single valued attributes there are scenarios where modifications
> applied concurrently cannot be simply resolved without violating the
> schema
> - the code to handle single valued attribute resolution is quite
> complex and has always been extended to resolve reported issues, not
> making it simpler
>
> I tried to specify all potential scenarios which should be handled and
> what the expected consistent state should be. In parallel writing a
> test suite based on lib389 test framework to provide testcases for all
> scenarios and then test the current implementation. The doc and test
> suite can be used as a reference for a potential rework of the update
> resolution code.
>
> Please have a look at:
> http://port389.org/wiki/Update_resolution_for_single_valued_attributes
>
> comments, corrections, additonal requirements are welcome - the doc is
> not final :-)
Very nice!
>
> Thanks,
> Ludwig
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