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From Alexei Scherbakov <alexey.scherbak...@gmail.com>
Subject Re: [DISCUSSION] Deprecation of obsolete rebalancing functionality
Date Wed, 12 Feb 2020 12:50:38 GMT
Maxim,

In general rebalanceDelay is used to delay/disable rebalance then topology
is changed.
Right now we have BLT to avoid unnecesary rebalancing when topology is
changed.
If a node left from cluster topology no rebalancing happens until the node
explicitly removed from baseline topology.

I would like to know real world scenarios which can not be covered by BLT
configuration.



ср, 12 февр. 2020 г. в 15:16, Maxim Muzafarov <mmuzaf@apache.org>:

> Alexey,
>
> > All scenarios where rebalanceDelay has meaning are handled by baseline
> topology now.
>
> Can you, please, provide more details here e.g. the whole list of
> scenarios where rebalanceDelay is used and how these handled by
> baseline topology?
>
> Actually, I doubt that it covers exactly all the cases due to
> rebalanceDelay is a "per cache group property" rather than "baseline"
> is meaningful for the whole topology.
>
> On Wed, 12 Feb 2020 at 12:58, Alexei Scherbakov
> <alexey.scherbakoff@gmail.com> wrote:
> >
> > I've meant baseline topology.
> >
> > ср, 12 февр. 2020 г. в 12:41, Alexei Scherbakov <
> > alexey.scherbakoff@gmail.com>:
> >
> > >
> > > V.Pyatkov
> > >
> > > Doesn't rebalance topology solves it ?
> > >
> > > ср, 12 февр. 2020 г. в 12:31, V.Pyatkov <vldpyatkov@gmail.com>:
> > >
> > >> Hi,
> > >>
> > >> I am sure we can to reduce this ability, but do not completely.
> > >> We can use rebalance delay for disable it until manually triggered.
> > >>
> > >> CacheConfiguration#setRebalanceDelay(-1)
> > >>
> > >> It may helpful for cluster where can not allow performance drop from
> > >> rebalance at any time.
> > >>
> > >>
> > >>
> > >> --
> > >> Sent from: http://apache-ignite-developers.2346864.n4.nabble.com/
> > >>
> > >
> > >
> > > --
> > >
> > > Best regards,
> > > Alexei Scherbakov
> > >
> >
> >
> > --
> >
> > Best regards,
> > Alexei Scherbakov
>


-- 

Best regards,
Alexei Scherbakov

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