Hello
I have one use-case that spans multiple map tasks in hadoop environment. I
use hadoop 1.2.1 and with 6 task nodes. Each map task writes their output
into a file stored in hdfs. This file is shared across all the map tasks.
Though, they all computes thier output but some of them are missing
HDFS is single-writer, multiple-reader (see sec 8.3.1 of
http://aosabook.org/en/hdfs.html). You cannot have multiple writers for a
single file at a time.
On Thu, Jul 10, 2014 at 2:55 AM, rab ra wrote:
> Hello
>
>
> I have one use-case that spans multiple map tasks in hadoop environment. I
> use
