how to monitor off heap size used

[scottmf <sc...@gmail.com>]

Hi,
I have a two node cluster with 8GB offheap memory configured on each node. 
To monitor my offheap usage I'm checking the
dataregionmetrics.<REGION>.offheapusedsize metric from jmx.  But I'm finding
that this value never shrinks.  I've tried to expand the cluster and expire
the caches and it always stays at the same level.

I assume this is not a bug and is expected behavior, in which case I'm
asking - How can I monitor the true off heap usage of my cluster?

thanks,
Scott



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

Re: how to monitor off heap size used

[Denis Magda <dm...@apache.org>]

The off-heap memory is not deallocated - once requested from the OS it will
be used by an Ignite node process. So, you can only see it growing as long
as the node is storing more data.

Check this documentation section for memory tracking hints:
https://apacheignite.readme.io/docs/memory-metrics#section-memory-usage-calculation

Plus, try out console.gridgain.com - it's free.

-
Denis


On Fri, Mar 29, 2019 at 3:34 PM scottmf <sc...@gmail.com> wrote:

> Hi,
> I have a two node cluster with 8GB offheap memory configured on each node.
> To monitor my offheap usage I'm checking the
> dataregionmetrics.<REGION>.offheapusedsize metric from jmx.  But I'm
> finding
> that this value never shrinks.  I've tried to expand the cluster and expire
> the caches and it always stays at the same level.
>
> I assume this is not a bug and is expected behavior, in which case I'm
> asking - How can I monitor the true off heap usage of my cluster?
>
> thanks,
> Scott
>
>
>
> --
> Sent from: http://apache-ignite-users.70518.x6.nabble.com/
>