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From Adam Fuchs <>
Subject Re: Running Accumulo straight from Memory
Date Wed, 12 Sep 2012 21:27:36 GMT
Yes, the effect of locality groups would be about the same in an in memory
system. The only exception would be if you're not using locality groups and
are fetching a particular column, the automatic seeking behavior of the
column filtering iterator would be more efficient with in memory rfiles.

On Sep 12, 2012 5:20 PM, "David Medinets" <> wrote:

> Why would locality groups be useful in an in-memory system?
> On Wed, Sep 12, 2012 at 4:53 PM, Adam Fuchs <> wrote:
> > Even if you are just using memory, minor and major compactions are
> important
> > to get compression, handle deletes, get sequential access (cache line
> > efficiency), use iterators, and introduce locality groups.

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