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From Avinash Lakshman <avinash.laksh...@gmail.com>
Subject Re: cassandra instability
Date Fri, 16 Apr 2010 18:07:44 GMT
Those memtable thresholds also need looking into. You are using some real
poor hardware configuration - 1.7 GB RAM is not a configuration worth
experimenting with IMO. Typical production deployments are running 16 GB RAM
and quad core 64 bit machines. Its hard I would presume to make any
recommendations with this kind of configuration.

Avinash

On Fri, Apr 16, 2010 at 10:58 AM, Paul Brown <paulrbrown@gmail.com> wrote:

>
> On Apr 16, 2010, at 10:50 AM, Lee Parker wrote:
> > [...]
> > I am trying to migrate data from mysql into the cluster using the
> following methodology:
> > 1. get 500 rows (12 columns each) from mysql
> > 2. build a batch_mutate to insert these rows into one CF (1 row = 1 row )
> > 3. build a second batch_mutate to insert an index of those rows into a
> second CF ( 1 row = 1 column )
> > 4. loop around and do it again until all data has migrated.
>
> If you have row caching turned on and are putting a lot of data in each
> row, you might be causing the memory issues.  Maybe turn row caching off?
>
> -- Paul
>
>

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