hadoop-common-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From unmesha sreeveni <unmeshab...@gmail.com>
Subject Combination of MapReduce and Hive
Date Fri, 17 Jan 2014 03:47:16 GMT
   Can we use a cobination of Hive and MapReduce
Say: I am having a csv file. Ineed to find the mean of a column and replace
the null data with the mean(replace null with mean)
so whether we can write a hive query in driver (to find the mean) then
write a mapreduce block to replace the null with mean.

Which is better way
1. writing only mapreduce code or
2. Use a combination of hive and mapreduce.

*Thanks & Regards*

Unmesha Sreeveni U.B
Junior Developer


View raw message