+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.
>>
