File duplication question

Jay Buffington jaybuffington at
Mon Jan 9 21:56:12 UTC 2006

> > and the cluster product being too unstable to work with,
> Nor that.  It's in-memory.  If you don't have 700 GB of memory, that
> pretty much limits your options for a 700 GB database.  For some
> applications, MySQL Cluster would be perfect.

If you're trying to store ~1 billion files in MogileFS the in memory
database MySQL Cluster uses (ndb) would grow to about 500 GB or so,
which is a huge memory requirement, even if it is spread over dozens
of machines.

With the 5.1 release of MySQL Cluster (mid-2006?) storing non-indexed
fields on disk will be supported. This will drastically reduce the
memory requirements for large Mogile installations using MySQL


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