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From Sergi Vladykin <sergi.vlady...@gmail.com>
Subject Re: Page Memory behavior with default memory policy
Date Thu, 20 Apr 2017 09:32:56 GMT
Guys,

If we have a default of 80% of available memory then just starting few
nodes on my laptop will make it hang. This idea does not work until we have
a dynamically expandable memory pools.

Sergi

2017-04-19 22:20 GMT+03:00 Dmitriy Setrakyan <dsetrakyan@apache.org>:

> Sergey,
>
> I have responded in the ticket. Can you please provide the current and the
> proposed configuration examples?
>
> D.
>
> On Wed, Apr 19, 2017 at 2:34 AM, Sergey Chugunov <
> sergey.chugunov@gmail.com>
> wrote:
>
> > Guys,
> >
> > I created a ticket to implement these improvements, please take a look:
> > IGNITE-5024 <https://issues.apache.org/jira/browse/IGNITE-5024>
> >
> > Besides employing the idea of allocation 80% of physical memory I'm also
> > suggesting to introduce one more configuration property to specify
> default
> > MemoryPolicy's size in bytes without having to use verbose syntax of
> > *memoryPolicyConfiguration
> > *section.
> >
> > Any thoughts on this?
> >
> > Thanks,
> > Sergey.
> >
> >
> >
> > On Tue, Apr 18, 2017 at 12:12 PM, Dmitriy Setrakyan <
> dsetrakyan@apache.org
> > >
> > wrote:
> >
> > > On Tue, Apr 18, 2017 at 2:09 AM, Alexey Goncharuk <
> > > alexey.goncharuk@gmail.com> wrote:
> > >
> > > > I don't see why not, this is the way our tests are currently running.
> > > > Anyways, we can think about efficient dynamic memory expansion in
> 2.1,
> > > this
> > > > may be feasible if we free up some space in PageId to encode segment
> > > > number. There is a ticket for this:
> > > > https://issues.apache.org/jira/browse/IGNITE-4921
> > >
> > >
> > > Alexey, if the operating system is already handling this for us, I
> don't
> > > see a reason to do it manually.
> > >
> > > I also like what Denis and Semyon are proposing. However, I would not
> > grab
> > > the full free memory. How about 80% of the free memory?
> > >
> > > D.
> > >
> >
>

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