You guys are confirming what we predicted. This was a "like to have" from our customer and we wanted to see if anyone else had tried this. Thanks.
Matt From: user-return-1336-MATTHEW.J.MOORE=saic....@accumulo.apache.org [mailto:user-return-1336-MATTHEW.J.MOORE=saic....@accumulo.apache.org] On Behalf Of Adam Fuchs Sent: Wednesday, September 12, 2012 5:28 PM To: user@accumulo.apache.org Subject: Re: Running Accumulo straight from Memory 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. Adam On Sep 12, 2012 5:20 PM, "David Medinets" <david.medin...@gmail.com> wrote: Why would locality groups be useful in an in-memory system? On Wed, Sep 12, 2012 at 4:53 PM, Adam Fuchs <afu...@apache.org> 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.