Hi,
I am using 0.18.2 with fair scheduler hadoop-3476.
The purpose of fair scheduler is to prevent long running jobs
from blocking short jobs. I gave it a try --- start a long job first, then a
short one. The short job is able to grab some map slot and finishes its map
phase quickly, but it st
Haijun Cao wrote:
Hi,
I am using 0.18.2 with fair scheduler hadoop-3476.
The purpose of fair scheduler is to prevent long running jobs
from blocking short jobs. I gave it a try --- start a long job first, then a
short one. The short job is able to grab some map slot and finishes its map
pha
Amar, Thanks for the pointer.
-Original Message-
From: Amar Kamat [mailto:[EMAIL PROTECTED]
Sent: Monday, November 24, 2008 8:43 PM
To: core-user@hadoop.apache.org
Subject: Re: do NOT start reduce task until all mappers are finished
Haijun Cao wrote:
> Hi,
>
>
>
> I