"But when the job complete, then I click History of Tracking UI again, it raise following error:

Firefox can't establish a connection to the server at master:19888."

This is a problem other than log aggregation. After an MapReduce job
completes, the tracking URL is pointing to the MapReduce history server. It
is very likely that the history server hasn't been running on your machine,
such that you didn't get response from it.

- Zhijie
On Sun, Feb 16, 2014 at 10:03 PM, EdwardKing <[EMAIL PROTECTED]> wrote:
Zhijie Shen
Hortonworks Inc.

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