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From Allen Wittenauer <awittena...@linkedin.com>
Subject Re: What are uses of taskTracker and JobTracker services?
Date Tue, 29 Jun 2010 17:50:30 GMT

On Jun 29, 2010, at 8:07 AM, Sarah kho wrote:

> Hi,
> 
> Can you please let me know what are tasks that the taskTracker and
> JobTracker performs?

Pretty much the entirety of the MapReduce framework.  You can think of it this way:


HDFS <--> MR
NameNode <--> JobTracker
DataNode <--> TaskTracker
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