Hi Igniters,
I feel monitoring will provide us with the necessary knowledge about how to
change.
I have no idea how region separation can help with performance. But it
could be an additional challenge for users to correctly configure separate
regions.
Sincerely,
Dmitriy Pavlov
чт, 16 авг. 2018
On Thu, Aug 16, 2018 at 2:27 AM, Vladimir Ozerov
wrote:
> Dima,
>
> None database I know use separate regions for index pages due to the reason
> I expressed above. Instead, they split all pages into two groups - hot and
> cold. With certain rules on how to move pages inside and between these
>
Dima,
None database I know use separate regions for index pages due to the reason
I expressed above. Instead, they split all pages into two groups - hot and
cold. With certain rules on how to move pages inside and between these
groups. None of these algorithms are complex enough. In fact, they
On Thu, Aug 16, 2018 at 2:01 AM, Vladimir Ozerov
wrote:
> Hi Dima,
>
> Putting index pages in separate region is wrong approach, because data
> pages may be equally important on certain workloads, especially in
> heap-organized databases, such as Ignite
Never seen a use case where the data
Hi Dima,
Putting index pages in separate region is wrong approach, because data
pages may be equally important on certain workloads, especially in
heap-organized databases, such as Ignite.
At the moment we'd better focus on monitoring.to better understand usages
patterns. This would give us solid
Vladimir,
Are we only counting timestamp of the last access? In that case, it would
create a problem. We should also count number of times a page has been
touched within a certain time frame, e.g. last hour or so. In this case,
index pages would not be evicted as they get touched the most.
I
Hi Vladimir,
I really feel that page replacement approach can be improved. Currently I
don't think that page nature will give us much, because usage frequency can
be independent to page type.
I also noticed a couple of tickets were done by Ilya Kasnacheev and Eugeniy
Stanilovskly, which were
