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Announcing HBase Refcard

We’re happy to announce the very first HBase Refcard proudly authored by two guys from Sematext.  We hope people will find the HBase Refcard useful in their work with HBase, along with the wonderful Apache HBase Reference Guide.  If you think the refcard is missing some important piece of information that deserves to be included or that it contains superfluous content, please do let us know! (e.g., via comments here)

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