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From ALEKSEY KUZNETSOV <alkuznetsov...@gmail.com>
Subject Re: one point optimisation
Date Mon, 03 Apr 2017 09:11:56 GMT
Regarding IgniteOnePhaseCommitNearSelfTest test , ignite's one phase
optimisation works not as you said.
I attached picture of message exchange. There are partial prepare phase
exists, along with finish phase.



пн, 3 апр. 2017 г. в 10:55, Christos Erotocritou <christos@gridgain.com>:

> As far as I know a partition is always allocated to a specific node and
> does not span nodes. Ignite has default 1024 partitions on start that are
> split equally across nodes.
>
> > On 3 Apr 2017, at 08:10, ALEKSEY KUZNETSOV <alkuznetsov.sb@gmail.com>
> wrote:
> >
> > in ur blog u texted belonging to the same partition is nessesary for 1
> > phase commit. But its not guarantee belonging to the same node. Partition
> > may span many nodes
> >
> > вс, 2 Апр 2017 г., 13:46 ALEKSEY KUZNETSOV <alkuznetsov.sb@gmail.com>:
> >
> >> thank u !
> >>
> >> пт, 31 Мар 2017 г., 21:06 Denis Magda <dmagda@apache.org>:
> >>
> >> Here is a good blog post about 1phase commit impl in Ignite and its
> >> advantages:
> >>
> >>
> http://gridgain.blogspot.com/2014/09/one-phase-commit-fast-transactions-for.html
> >> <
> >>
> http://gridgain.blogspot.com/2014/09/one-phase-commit-fast-transactions-for.html
> >>>
> >>
> >> Took a reference to it from there:
> >>
> >>
> https://apacheignite.readme.io/docs/transactions#section-two-phase-commit-2pc
> >> <
> >>
> https://apacheignite.readme.io/docs/transactions#section-two-phase-commit-2pc
> >>>
> >>
> >> —
> >> Denis
> >>
> >>> On Mar 31, 2017, at 12:27 PM, Dmitriy Setrakyan <dsetrakyan@apache.org
> >
> >> wrote:
> >>>
> >>> On Fri, Mar 31, 2017 at 9:25 AM, ALEKSEY KUZNETSOV <
> >> alkuznetsov.sb@gmail.com
> >>>> wrote:
> >>>
> >>>> Igniters! What is the point of one phase optimisation?
> >>>>
> >>>
> >>> Performance
> >>
> >> --
> >>
> >> *Best Regards,*
> >>
> >> *Kuznetsov Aleksey*
> >>
> > --
> >
> > *Best Regards,*
> >
> > *Kuznetsov Aleksey*
>
-- 

*Best Regards,*

*Kuznetsov Aleksey*

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