Sounds like doing this w/o m/r with get_range_slices is a reasonable way to go.
On Thu, Apr 29, 2010 at 6:04 PM, Utku Can Topçu <u...@topcu.gen.tr> wrote: > I'm currently writing collected data continuously to Cassandra, having keys > starting with a timestamp and a unique identifier (like > 2009.01.01.00.00.00.RANDOM) for being able to query in time ranges. > > I'm thinking of running periodical mapreduce jobs which will go through a > designated time period. I might want to analyze the data only between > 2009.01 and 2009.02. > I had done this previously with HBase however I thought cassandra would be a > better choice for continuously storing data in a safe manner. > > I guess this briefly explains my designated use case. > > Best Regards, > Utku > > On Thu, Apr 29, 2010 at 11:32 PM, Jonathan Ellis <jbel...@gmail.com> wrote: >> >> It's technically possible but 0.6 does not support this, no. >> >> What is the use case you are thinking of? >> >> On Thu, Apr 29, 2010 at 11:14 AM, Utku Can Topçu <u...@topcu.gen.tr> >> wrote: >> > Hi, >> > >> > I've been trying to use Cassandra for some kind of a supplementary input >> > source for Hadoop MapReduce jobs. >> > >> > The default usage of the ColumnFamilyInputFormat does a full >> > columnfamily >> > scan for using within the MapReduce framework as map input. >> > >> > However I believe that, it should be possible to give a keyrange to scan >> > the >> > specified range. >> > >> > Is it anymeans possible? >> > >> > Best Regards, >> > >> > Utku >> >> -- >> Jonathan Ellis >> Project Chair, Apache Cassandra >> co-founder of Riptano, the source for professional Cassandra support >> http://riptano.com > > -- Jonathan Ellis Project Chair, Apache Cassandra co-founder of Riptano, the source for professional Cassandra support http://riptano.com
