There are lots of examples of MapReduce using HBase here... http://hbase.apache.org/book.html#mapreduce
On 2/14/12 3:30 AM, "hongqizh" <[email protected]> wrote: >>Why not? It stops at a particular region? Can you figure which one. >>Is it not deployed anywhere? Grep its name in master logs to see if >>you can figure what happened to it? > >It seems that a StackOverflowError happened in my program. > >>I don't think we'll be adding such a call; it would imply a full scan >>of the whole table to find every unique column of which there could be >>millions. If the table is big, it'd need to mapreduce for the result >>to come back in any reasonable amount of time. > >Sorry, St.Ack , I'm not very clear about how to mapreduce for the result, >could you explain more about the mapreduce or give me some link? Thanks >again for your kind help! > > >hongqi > >-- >View this message in context: >http://apache-hbase.679495.n3.nabble.com/Is-there-a-API-to-get-all-the-col >umns-of-a-column-family-tp3739607p3743029.html >Sent from the HBase - Developer mailing list archive at Nabble.com. >
