+1
On Tue, Dec 8, 2020 at 10:02 PM Nikolay Izhikov <nizhi...@apache.org> wrote: > > +1 > > > 8 дек. 2020 г., в 21:54, Valentin Kulichenko > > <valentin.kuliche...@gmail.com> написал(а): > > > > +1 > > > > On Tue, Dec 8, 2020 at 8:31 AM Вячеслав Коптилин <slava.kopti...@gmail.com> > > wrote: > > > >> Hello Igniters, > >> > >> I want to start voting on removing the public API (and eventually all > >> unused parts) related to the MVCC feature. > >> > >> This topic has already been discussed many times (at least, [1], [2]) and > >> the community has agreed the feature implementation must be reapproached, > >> because using coordinator node for transactions ordering and 2pc protocol > >> is slow by design and will not scale well. [3] > >> > >> Moreover, the current implementation has critical issues [4], not supported > >> by the community, and not well tested at all. > >> > >> Removing the public API first will allow us to clean up the code later step > >> by step without rushing and keep intact useful improvements that are > >> already in use or can be reused for other parts in the future. > >> For instance, partition counters implementation is already adapted to fix > >> tx caches protocol issues [5]. > >> > >> The future of MVCC is unclear for now, but, definitely, this feature is > >> useful for a lot of user scenarios and can be scheduled for later Ignite > >> versions. > >> Also, the MVCC feature is in an experimental state, so it can be modified > >> in any way, I think. > >> > >> +1 - to accept removing MVVC feature from public API > >> 0 - don't care either way > >> -1 - do not accept removing API (explain why) > >> > >> The vote will hold for 7 days and will end on Wednesday, December 16th at > >> 19:00 UTC: > >> > >> https://www.timeanddate.com/countdown/generic?iso=20201216T19&p0=1440&font=cursive > >> > >> [1] > >> > >> http://apache-ignite-developers.2346864.n4.nabble.com/Mark-MVCC-with-IgniteExperimental-td45669.html > >> [2] > >> > >> http://apache-ignite-developers.2346864.n4.nabble.com/Disable-MVCC-test-suites-td50416.html > >> [3] > >> > >> http://apache-ignite-developers.2346864.n4.nabble.com/Mark-MVCC-with-IgniteExperimental-tp45669p45727.html > >> [4] > >> > >> http://apache-ignite-developers.2346864.n4.nabble.com/Mark-MVCC-with-IgniteExperimental-tp45669p45716.html > >> [5] > >> > >> http://apache-ignite-developers.2346864.n4.nabble.com/Mark-MVCC-with-IgniteExperimental-tp45669p45714.html > >> > >> Thanks, > >> Slava. > >> >
