Mike Drob put together a great talk at the Accumulo Summit (http://www.slideshare.net/AccumuloSummit/10-30-drob) discussing Accumulo performance and HBase performance. This exactly the kind of work the entire Hadoop community needs to continue to move forward.
I had one question about the talk which I was wondering if someone might be able to shed light on. In the Accumulo part of the talk the experiments varied #rows while keeping the #cols fixed, while in the Accumulo/HBase part of the the experiments varied #cols while keeping #rows fixed?
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