Thank you, I am trying to avoid to fetch by gets and would like to do something like hadoop MultipleInputs. Yes, it would be nice if i could denormalize and remodel the schema.
On Fri, Aug 10, 2012 at 6:29 AM, Amandeep Khurana <[email protected]> wrote: > You can scan over one of the tables (using TableInputFormat) and do simple > gets on the other table for every row that you want to join. > > An interesting question to address here would be - why even need a join. > Can you talk more about the data and what you are trying to do? In general > you really want to denormalize and not need joins when working with HBase > (or for that matter most NoSQL stores). > > On Fri, Aug 10, 2012 at 6:52 PM, Weishung Chung <[email protected]> > wrote: > > > Basically a join of two data sets on the same row key. > > > > On Fri, Aug 10, 2012 at 6:12 AM, Amandeep Khurana <[email protected]> > > wrote: > > > > > How do you want to use two tables? Can you explain your algo a bit? > > > > > > On Fri, Aug 10, 2012 at 6:40 PM, Weishung Chung <[email protected]> > > > wrote: > > > > > > > Hi HBase users, > > > > > > > > I need to pull data from 2 HBase tables in a mapreduce job. For 1 > table > > > > input, I use TableMapReduceUtil.initTableMapperJob. Is there another > > > method > > > > for multitable inputs ? > > > > > > > > Thank you, > > > > Wei Shung > > > > > > > > > >
