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y-kawaz 2012/08/27
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y-kawaz 2012/05/08
hadoop
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y-kawaz 2011/07/04
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y-kawaz 2010/11/04
hadoop

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mapreduce
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y-kawaz 2010/09/29
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y-kawaz 2010/01/26
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y-kawaz 2009/12/17
hadoop
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