You can use Apache PIG to load data and filter it by row key, filter in pig is very fast. Regards Shamim
11.12.2012, 20:46, "Ayush V." <ayushv...@gmail.com>: > I'm working on Cassandra Hadoop intergration (MapReduce). We have used Random > Partioner to insert data to gain faster write. Now we have to read that data > from cassandra in MapReduce and perform some calculation on it. > > From the lots of data we have in cassandra we wan't to fetch data only for > particular ROW-KEYs but we are unable to do it due to RandomPartioner - > assertion is there in code. > > Can anyone please guide me how should I filter data based on RowKey on > Cassandra level itself (I know data is distributed across regions using Hash > of the RowKey)? > > Does using secondary indexes (still trying to understand how it works) will > solve my problem or is there some other way around? > > I will be really appreciated if someone could answer my queries. > > Thanks > AV > > -- > View this message in context: > http://cassandra-user-incubator-apache-org.3065146.n2.nabble.com/Filter-data-on-row-key-in-Cassandra-Hadoop-s-Random-Partitioner-tp7584212.html > Sent from the cassandra-u...@incubator.apache.org mailing list archive at > Nabble.com.
