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From Kurt Christensen <>
Subject Re: Accumulo / HBase migration
Date Tue, 09 Jul 2013 17:31:50 GMT

I don't have a response to your question, but it seems to me that the 
big capability difference is visibility field. When doing bulk 
translations like this, do you just fill visibility with some default value?

-- Kurt

On 7/9/13 1:26 PM, Donald Miner wrote:
> Has anyone developed tools to migrate data from an existing HBase 
> implementation to Accumulo? My team has done it "manually" in the past 
> but it seems like it would be reasonable to write a process that 
> handled the steps in a more automated fashion.
> Here are a few sample designs I've kicked around:
> HBase -> mapreduce -> mappers bulk write to accumulo -> Accumulo
> or
> HBase -> mapreduce -> tfiles via AccumuloFileOutputFormat -> Accumulo 
> bulk load -> Accumulo
> or
> HBase -> bulk export -> map-only mapreduce to translate hfiles into 
> tfiles (how hard would this be??) -> Accumulo bulk load -> Accumulo
> I guess this could be extended to go the other way around (and also 
> include Cassandra perhaps).
> Maybe we'll start working on this soon. I just wanted to kick the idea 
> out there to see if it's been done before or if anyone has some gut 
> reactions to the process.
> -Don
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Kurt Christensen
P.O. Box 811
Westminster, MD 21158-0811

I'm not really a trouble maker. I just play one on TV.

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