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From David Boxenhorn <da...@lookin2.com>
Subject Re: Multi-tenancy, and authentication and authorization
Date Wed, 19 Jan 2011 09:24:48 GMT
+1



On Wed, Jan 19, 2011 at 10:35 AM, Stu Hood <stuhood@gmail.com> wrote:

> Opened https://issues.apache.org/jira/browse/CASSANDRA-2006 with the
> solution we had suggested on the MultiTenant wiki page.
>
>
> On Tue, Jan 18, 2011 at 11:56 PM, David Boxenhorn <david@lookin2.com>wrote:
>
>> I think tuning of Cassandra is overly complex, and even with a single
>> tenant you can run into problems with too many CFs.
>>
>> Right now there is a one-to-one mapping between memtables and SSTables.
>> Instead of that, would it be possible to have one giant memtable for each
>> Cassandra instance, with partial flushing to SSTs?
>>
>> It seems to me like a single memtable would make it MUCH easier to tune
>> Cassandra, since the decision whether to (partially) flush the memtable to
>> disk could be made on a node-wide basis, based on the resources you really
>> have, instead of the guess-work that we are forced to do today.
>>
>
>

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