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From Denis Magda <dma...@apache.org>
Subject Re: memory usage in 2.3
Date Tue, 12 Dec 2017 23:36:09 GMT

If you still need to use the on-heap caching by some reason make sure you enabled an eviction
https://apacheignite.readme.io/docs/evictions#section-java-heap-cache <https://apacheignite.readme.io/docs/evictions#section-java-heap-cache>

Otherwise the on-heap cache will grow endlessly.

BTW, what kind of OOM you got? It might be off-heap or on-heap caching related. Share the
whole stack trace.


> On Dec 12, 2017, at 4:37 AM, slava.koptilin <slava.koptilin@gmail.com> wrote:
> Hi Shawn,
>> how to disable off heap completely?
> You cannot disable off-heap. As of 2.0, Apache Ignite stores all the data
> outside of java heap.
>> does it mean half in on-heap and half in off-heap?
> On-heap caching allows to get a subset of the data into java heap
> and can be useful for scenarios when you do a lot of cache reads on server
> nodes that work with cache entries in the binary form
> or invoke cache entry deserialization.
> Thanks!
> --
> Sent from: http://apache-ignite-users.70518.x6.nabble.com/

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