iwannaplay games <funnlearnforkids@...> writes: > > Hi , > > I want to run query like > > select month(eventdate),scene,count(1),sum(timespent) from eventlog > group by month(eventdate),scene > > in hbase.Through hive its taking a lot of time for 40 million > records.Do we have any syntax in hbase to find its result?In sql > server it takes around 9 minutes,How long it might take in hbase?? > > Regards > Prabhjot > >
Hi, In our internal testing using server-side coprocessors for aggregation, we've found HBase can process these types of queries very quickly: ~10-12 seconds using a four node cluster. You need to chunk up and parallelize the work on the client side to get this kind of performance, though. Regards, James
