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From Maciej Miklas <mac.mik...@googlemail.com>
Subject Re: Cassandra 1.x and proper JNA setup
Date Wed, 02 Nov 2011 12:53:50 GMT
I've just found, that JNA will be not used from 1.1 release -
https://issues.apache.org/jira/browse/CASSANDRA-3271
I would be also nice to know what was the reason for this decision.

Regards,
Maciej

On Wed, Nov 2, 2011 at 1:34 PM, Viktor Jevdokimov <
Viktor.Jevdokimov@adform.com> wrote:

> Up, also interested in answers to questions below.
>
>
> Best regards/ Pagarbiai
>
> Viktor Jevdokimov
> Senior Developer
>
> Email: Viktor.Jevdokimov@adform.com
> Phone: +370 5 212 3063
> Fax: +370 5 261 0453
>
> J. Jasinskio 16C,
> LT-01112 Vilnius,
> Lithuania
>
>
>
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> irrevocably delete this message and any copies.-----Original Message-----
> From: Maciej Miklas [mailto:mac.miklas@googlemail.com]
> Sent: Tuesday, November 01, 2011 11:15
> To: user@cassandra.apache.org
> Subject: Cassandra 1.x and proper JNA setup
>
> Hi all,
>
> is there any documentation about proper JNA configuration?
>
> I do not understand few things:
>
> 1) Does JNA use JVM heap settings?
>
> 2) Do I need to decrease max heap size while using JNA?
>
> 3) How do I limit RAM allocated by JNA?
>
> 4) Where can I see / monitor row cache size?
>
> 5) I've configured JNA just for test on my dev computer and so far I've
> noticed serious performance issues (high cpu usage on heavy write load), so
> I must be doing something wrong.... I've just copied JNA jars into
> Cassandra/lib, without installing any native libs. This should not work at
> all, right?
>
> Thanks,
> Maciej
>
>

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