Hi,
So I have a file in which the records are comma separated (
Record1,Record2). I want to make first record (Record1 as key) and Record2
as value.
I am using hadoop 0.20-append version.
I am looking forward to use KeyValueTextInputFormat and then setting
key.value.separator.in.input.line with
The case your talking about is when you use FileInputFormat ... So usually
the InputFormat Interface is the one responsible for that.
For FileInputFormat, it uses a LineRecordReader which will take your text
file and assigns key to be the offset within your text file and value to be
the line
Hi,
As we know hadoop mapper takes input as (Key,Value) pairs and generate
intermediate (Key,Value) pairs and usually we give input to our Mapper as a
text file.
How hadoop understand this and parse our input text file into (Key,Value)
Pairs
Usually our mapper looks like --
*public* *void*
