Optimistic concurrency in Riak

Ransom Richardson ransomr at cocomo.com
Wed Mar 21 15:15:03 EDT 2012


Does riak support optimistic concurrency? This KB article seems to indicate not: https://help.basho.com/entries/321522-can-riak-be-configured-to-fail-an-update-instead-of-generating-a-conflict

But if it doesn't, what is the meaning of the if_not_modified field in the PBC Store Object: http://wiki.basho.com/PBC-Store-Object.html?

If strict quorum is used (as described here: http://lists.basho.com/pipermail/riak-users_lists.basho.com/2012-January/007157.html) will that allow optimistic concurrency to be implemented (once the bugs mentioned in the message are fixed)? Is there any update on those bugs?

thanks,
Ransom
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