incubator-cassandra-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From kannan chandrasekaran <ckanna...@yahoo.com>
Subject Re: Heap Settings suggestions
Date Fri, 08 Oct 2010 01:03:37 GMT
Good point..

Thanks to both of you for the replies.
Kannan




________________________________
From: Matthew Dennis <mdennis@riptano.com>
To: user@cassandra.apache.org
Sent: Thu, October 7, 2010 4:59:28 PM
Subject: Re: Heap Settings suggestions


Keep in mind that .7 and on will have per-CF settings for most things so there 
will be even more control over the the tuning...
On Oct 7, 2010 3:10 PM, "Peter Schuller" <peter.schuller@infidyne.com> wrote:
>> What if there is more than one keyspace in the system ? Assuming each
>> keyspace has the same number of column families, Can I linearly scale the
>> above recommendation to the number of keyspaces in the system .ie, if the
>> "X" is the heap size for a single keyspace and there are "Y" keyspaces, Is
>> it recommended to allocate "XY" as the max  Heap size ?  Please let me know.
> 
> Yes. Each column family will have a memtable subject to the configured
> memory constraints; whether or not they are in different keyspaces
> does not matter.
> 
> -- 
> / Peter Schuller



      
Mime
View raw message