-Re: Where is the map input transfered to the 'map worker'/container?
The input will be read using the InputFormat's record reader.
In case of TexInputformat, *LineRecordReader#nextKeyValue(..)* will do the
job of reading one line from input file for every map call and storing the
offset as *key *and *text* as *value, *and same will be passed to *map(..)*
You can go through *org.apache.hadoop.mapreduce.lib.input.LineRecordReader.java
*for more details.
On Mon, Jul 7, 2014 at 10:06 AM, Sandy Ryza <[EMAIL PROTECTED]> wrote: