Map reduce on cassandra type

#1

Is it possible to run a map-reduce job on a Cassandra type or it only works for SQL tables?

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Move Measurements from one MS to another
#2

if you mean into the mapper function yes it is possible.

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#3

MapReduce should work on any Persistable type

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#4

I tried running a mapreduce job on a Cassandra type and got an error that a parent key is required

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#5

you shoud pass all the parents and cycle on them within the map function

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