Hi, ryan,  just as you say , now I am using setTimeRange to fulfill my request.

 I am just curious on the 'less than' concept, 

   'If an application asks for a given row at a given timestamp, 
   HBase will return cell data where the timestamp is less than or
   equal to  the one provided.'

especially  'at a given timestamp'  not time range...

-- 
Pan W <[email protected]>

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