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From tommaso barbugli <tbarbu...@gmail.com>
Subject Re: keyspace with hundreds of columnfamilies
Date Wed, 02 Jul 2014 12:21:59 GMT
Hi,
I am building a sort of db as a service (more, one db table as a service)
and I want every user to have their own storage as much isolated as
possible (and give them some freedom in terms of schema customisation and
the ability to build 2i indexes).
You know what kind of memory cost we are talking about? Is this going to
influence clients (I am using DS python driver) too? (eg. flooding them
with meta data)

Thanks
Tommaso


2014-07-02 13:22 GMT+02:00 Jonathan Lacefield <jlacefield@datastax.com>:

> Hello
>   There is overhead for memory with each col family.  This type of
> configuration could cause heap issues.  What is driving the
> requirement for so many Cfs?
>
> > On Jul 2, 2014, at 4:14 AM, tommaso barbugli <tbarbugli@gmail.com>
> wrote:
> >
> > Hi,
> > Are there any known issues, shortcomings about organising data in
> hundreds of column families?
> > At this present I am running with 300 column families but I expect that
> to get to a couple of thousands.
> > Is this something discouraged / unsupported (I am using Cassandra 2.0).
> >
> > Thanks
> > Tommaso
>

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