incubator-cassandra-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Jay Svc <jaytechg...@gmail.com>
Subject Re: Does Memtable resides in Heap?
Date Tue, 16 Apr 2013 15:02:33 GMT
Thanks Edward.!



On Fri, Apr 12, 2013 at 9:46 AM, Edward Capriolo <edlinuxguru@gmail.com>wrote:

> 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