You would pass multiple Scans to MultiTableInputFormat. Each Scan object is for each table. The input to the mapper is the same as before: the scan result (row key and values for the row).
Thanks, Jerry On Mon, May 22, 2017 at 3:33 AM, Rajeshkumar J <[email protected]> wrote: > Hi, > > > I came across MultiTableInputFormat class which convert HBase tabular > data from multiple scanners into a format that is consumable by Map/Reduce. > So what will be the input to the mapper class if I have passed a scan > object to this class which scans two tables. Whether the input to mapper > class is the whole data which the scan object returns ?? can any one > explain > > Thanks >
