...@gmail.com]
Sent: vrijdag 20 mei 2011 15:26
To: common-user@hadoop.apache.org
Subject: Re: Why Only 1 Reducer is running ??
what does your mapred-site.xml file say?
I've used wordcount and had close to 12 reduces running on a 6
datanode cluster on a 3 GB file.
I have a configuration
Subject: Re: Why Only 1 Reducer is running ??
what does your mapred-site.xml file say?
I've used wordcount and had close to 12 reduces running on a 6
datanode cluster on a 3 GB file.
I have a configuration in there which says:
mapred.reduce.tasks = 12
The reason I chose 12
Hello everyone,
I am using wordcount application to test on my hadoop cluster of 5 nodes.
The file size is around 5 GB.
Its taking around 2 min - 40 sec for execution.
But when I am checking the JobTracker web portal, I am seeing only one
reducer is running. Why so ??
How can I change the code
The job could be designed to use one reducer
On 2011-05-20, at 7:19 AM, praveenesh kumar praveen...@gmail.com wrote:
Hello everyone,
I am using wordcount application to test on my hadoop cluster of 5 nodes.
The file size is around 5 GB.
Its taking around 2 min - 40 sec for execution.
But
I am using the wordcount example that comes along with hadoop.
How can I configure it to make it use multiple reducers.
I guess mutiple reducers will make it run more fast .. Does it ??
On Fri, May 20, 2011 at 6:51 PM, James Seigel Tynt ja...@tynt.com wrote:
The job could be designed to use
2011 15:26
To: common-user@hadoop.apache.org
Subject: Re: Why Only 1 Reducer is running ??
what does your mapred-site.xml file say?
I've used wordcount and had close to 12 reduces running on a 6
datanode cluster on a 3 GB file.
I have a configuration in there which says
