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From Sujee Maniyam <su...@sujee.net>
Subject how to calculate top-xxx rowkeys
Date Sun, 14 Feb 2010 08:56:53 GMT
HI

I have a table with rowkey is composed of userid + timestamp. I need
to figure out 'top-100' users.

One approach is running a scanner and keeping a hashmap of user-count in memory.

Wondering if there is an hbase-trick I could use?

thanks
Sujee

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