in my MapReduce job I parse documents' metadata, so about each document I
know things like author=john, and last_printed=3/3/10, and so on.
What is the best way to put all this into a text line of output in the
reducer? In other words, I want to imitate HBase, putting (qualifier, value)
pairs with the same rowkey - but in text output. I will probably need to
base64 encode them, because Hadoop does not like any characters other than
So is "Key=Value", "Key=Value" the best practice?
What do I do with that values? Eventually I want to create a CSV file, with
all the metadata values in a table format - running this as the next