incubator-cassandra-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Edward Capriolo <edlinuxg...@gmail.com>
Subject Re: Does Memtable resides in Heap?
Date Fri, 12 Apr 2013 14:46:47 GMT
This issue describes the design of the arena allocation of memtabes.
https://issues.apache.org/jira/browse/CASSANDRA-2252


On Fri, Apr 12, 2013 at 1:35 AM, Viktor Jevdokimov <
Viktor.Jevdokimov@adform.com> wrote:

> Memtables resides in heap, write rate impacts GC, more writes - more
> frequent and longer ParNew GC pauses.
>
>
> From: Jay Svc [mailto:jaytechgeek@gmail.com]
> Sent: Friday, April 12, 2013 01:03
> To: user@cassandra.apache.org
> Subject: Does Memtable resides in Heap?
>
> Hi Team,
>
> I have got this 8GB of RAM out of that 4GB allocated to Java Heap. My
> question is the size of Memtable does it contribute to heap size? or they
> are part of off-heap?
>
> Does bigger Memtable would have impact on GC and overall memory management?
>
> I am using DSE 3.0 / Cassandra 1.1.9.
>
> Thanks,
> Jay
>
> 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
>
>
>
> Disclaimer: The information contained in this message and attachments is
> intended solely for the attention and use of the named addressee and may be
> confidential. If you are not the intended recipient, you are reminded that
> the information remains the property of the sender. You must not use,
> disclose, distribute, copy, print or rely on this e-mail. If you have
> received this message in error, please contact the sender immediately and
> irrevocably delete this message and any copies.
>

Mime
View raw message