Hello Nikolay,

> Should public java API continue to silently clear in-memory caches?
Let's assume that I have a mixed cluster with persistent cache and
in-memory cache which is backed by 3-rd party persistence. I see no reason
to throw an exception in that case at least.
Anyway, this fact should be clearly stated in the Javadoc and documentation
of course.

> What is your suggestion for the API?
I think we are talking about JMX methods. Am I correct? Is it possible to
add new methods as follows: activateCluster()/deactivateCluster() and
deprecate IgniteMXBean#active(boolean)?
Does this make sense? Am I missing something?

Thanks,
S.

пт, 14 февр. 2020 г. в 16:17, Nikolay Izhikov <nizhi...@apache.org>:

> Vyacheslav.
>
> What is your suggestion for the API?
>
> Single implementation for both Ignite#active(boolean) and
> IgniteMXBean#active(boolean)
> Should public java API continue to silently clears in-memory caches?
>
>
> > 14 февр. 2020 г., в 15:56, Вячеслав Коптилин <slava.kopti...@gmail.com>
> написал(а):
> >
> > Hello Vladimir,
> >
> >> adding a new method with force flag means old methods change their
> > behavior:
> > I don't think that changing the behavior of public API is the right way.
> > Moreover, I agree with Alex that there is no need to introduce a
> > "confirmation" flag to the java API.
> >
> > Thanks,
> > S.
> >
> > пт, 14 февр. 2020 г. в 15:38, Vladimir Steshin <vlads...@gmail.com>:
> >
> >> Alexey, adding a new method with force flag means old methods change
> their
> >> behavior: they are considered as executed without ‘force‘ flag and can
> fail
> >> to prevent data loss. Ignite and IgniteMXBean are different interfaces.
> >> Unfortunately, they have same method
> >>
> >> void  active(boolean active)
> >>
> >> When executed as IgniteMXBean it should fail if user can lose data. When
> >> executed from code via interface Ignite probably not. To solve this I
> >> suggest to add ‘force’ flag for every deactivation mode: CLI/JMX/REST
> and
> >> other API.
> >>
> >> пт, 14 февр. 2020 г. в 15:20, Alexey Goncharuk <
> alexey.goncha...@gmail.com
> >>> :
> >>
> >>> Igniters,
> >>>
> >>> Do we really need the confirmation flag on the public API? I absolutely
> >>> agree on the CLI and MXBean, but what is the reason for the flag in the
> >>> API? It will be specified at the compile time anyway and does not
> prevent
> >>> any user error.
> >>> From the implementation point of view I see no contradiction - we can
> add
> >>> the new method to the MXBean, but nothing forces us to add it to Ignite
> >>> interface - those interfaces are not related.
> >>>
> >>
>
>

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