How about the bloom filter and index samples, are they part of off-heap?
Starting from C* 1.2 bloom filters are stored off-heap. Index samples
are stored on heap.
M.
Thanks Edward.!
On Fri, Apr 12, 2013 at 9:46 AM, Edward Capriolo edlinuxg...@gmail.comwrote:
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
Compression Meta data is also off heap
http://www.datastax.com/dev/blog/performance-improvements-in-cassandra-1-2
Cheers
-
Aaron Morton
Freelance Cassandra Consultant
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 17/04/2013, at 3:02 AM, Jay Svc jaytechg...@gmail.com
Thanks Vitor,
So as per recommendation its only efficient when heap size is below 8GB.
How about when we have more RAM, does that rest of the RAM can be left for
OS to make use?
How about the bloom filter and index samples, are they part of off-heap?
Thank you for your response.
Regards,
Jay
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.jevdoki...@adform.com wrote:
Memtables resides in heap, write rate impacts GC, more writes - more
frequent and
Memtables resides in heap, write rate impacts GC, more writes - more frequent
and longer ParNew GC pauses.
From: Jay Svc [mailto:jaytechg...@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
