Actual size of Ignite caches

[ashishb888 <as...@gmail.com>]

How to get the actual size of caches? And do Ignite cache use heap size
provided to the application at the time of starting?



--
Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Re: Actual size of Ignite caches

[Igor Belyakov <ig...@gmail.com>]

Hi,

You can use "TotalAllocatedSize" data region metric to get information
regarding total used memory by the data region. More about metrics can be
found here:
https://apacheignite.readme.io/docs/memory-metrics#section-getting-metrics

Ignite stores cache data in off-heap memory(except near caches), you can
configure data regions sizes that will be used for caches by using
"initialSize" and "maxSize" properties in data region definition, as
described here:
https://www.gridgain.com/docs/8.7.6/developers-guide/memory-architecture/data-regions#configuring-default-data-region


Regards,
Igor Belyakov

On Fri, Nov 22, 2019 at 12:48 PM ashishb888 <as...@gmail.com>
wrote:

> How to get the actual size of caches? And do Ignite cache use heap size
> provided to the application at the time of starting?
>
>
>
> --
> Sent from: http://apache-ignite-users.70518.x6.nabble.com/
>

Re: Actual size of Ignite caches

[Prasad Bhalerao <pr...@gmail.com>]

You can also get the approx size by enabling persistence. With this you can
get the apporx size of each cache in bytes by checking the folder size of
each cache.

On Fri 22 Nov, 2019, 7:23 PM Mikael <mikael-aronsson@telia.com wrote:

> Don't think there is any direct way to do it, but you can read out the
> metric for your data regions and see how much memory is used and how
> much is free, that would give you a good indication of memory usage
>
> Den 2019-11-22 kl. 13:01, skrev ashishb888:
> > Yes I am talking about physical size in bytes. How to get it?
> >
> >
> >
> > --
> > Sent from: http://apache-ignite-users.70518.x6.nabble.com/
> >
>

Re: Actual size of Ignite caches

[Mikael <mi...@telia.com>]

Don't think there is any direct way to do it, but you can read out the 
metric for your data regions and see how much memory is used and how 
much is free, that would give you a good indication of memory usage

Den 2019-11-22 kl. 13:01, skrev ashishb888:
> Yes I am talking about physical size in bytes. How to get it?
>
>
>
> --
> Sent from: http://apache-ignite-users.70518.x6.nabble.com/
>

Re: Actual size of Ignite caches

[ashishb888 <as...@gmail.com>]

Yes I am talking about physical size in bytes. How to get it?



--
Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Re: Actual size of Ignite caches

[Mikael <mi...@telia.com>]

Hi!

Are you talking about size as in number of entries or physical size in 
bytes ?

Ignite put most of the cache contents off heap, you create data regions 
(off heap) where the cache contents are allocated (there is a default 
data region), depending on configuration some contents of the cache can 
be on heap also (to improve on serialization/deserialization performance).

Mikael

Den 2019-11-22 kl. 10:48, skrev ashishb888:
> How to get the actual size of caches? And do Ignite cache use heap size
> provided to the application at the time of starting?
>
>
>
> --
> Sent from: http://apache-ignite-users.70518.x6.nabble.com/
>