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From Peter Schmitt <peter.schmitt....@gmail.com>
Subject Re: Non-cluster mode
Date Tue, 05 Jul 2016 12:20:45 GMT
Hi Denis,

we are trying to store a huge amount of data off-heap (more than 50 GB).
Therefore, we need to know the heap-size which is needed by Ignite to
handle such a huge off-heap cache (which we only need to keep the heap-size
as low as possible due to the GC overhead).

Kind regards
Peter



2016-07-05 11:41 GMT+02:00 Denis Magda <dmagda@gridgain.com>:

> Hi Peter,
>
> Basically it depends on your use case. Sometimes it’s enough 2 GB,
> sometimes 5 GB or 10 GB. It depends on the workload.
> However you shouldn’t allocate too big Java heaps with size more than 20
> GB because it can lead to long stop-the-world pauses at some time.
>
> —
> Denis
>
> On Jul 3, 2016, at 11:29 AM, Peter Schmitt <peter.schmitt.jee@gmail.com>
> wrote:
>
> Hi Val,
>
> after several tests I can confirm that it works with more heap-memory.
> However, I'm not sure how much heap-memory is needed for 50+ GB
> off-heap-data and I can't find hints for it in the docs.
>
> Kind regards
> Peter
>
>
>
> 2016-06-30 22:23 GMT+02:00 vkulichenko <valentin.kulichenko@gmail.com>:
>
>> Hi Peter,
>>
>> It sound like you just don't give enough heap memory to a node. Heap
>> memory
>> is still required, even if you store all the data off heap. Can you try to
>> your JVM at least 2GB and check if this helps?
>>
>> -Val
>>
>>
>>
>> --
>> View this message in context:
>> http://apache-ignite-users.70518.x6.nabble.com/Non-cluster-mode-tp5959p6028.html
>> Sent from the Apache Ignite Users mailing list archive at Nabble.com
>> <http://nabble.com>.
>>
>
>
>

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