This is a little tough. Do both tables have same number of regions? Are you walking through the two tables serially in your mapreduce or do you want to do random lookups into the second table dependent on the row you are currently processing in table one?
St.Ack On Thu, Jan 7, 2010 at 7:51 PM, john smith <[email protected]> wrote: > Hi all, > > My requirement is that , I must read two tables (belonging to the same > region server) in the same Map . > > Normally TableMap supports only 1 table at a time and right now I am > reading > the entire 2nd table in any one > of the maps , This is a big overhead . So can any one suggest some > modification of TableMap or a different > approach which can read 2 tables simultaneously at the same time . This can > be very useful to us! > > Thanks > J-S >
