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https://issues.apache.org/jira/browse/HADOOP-5052?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12675185#action_12675185
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Chris Douglas commented on HADOOP-5052:
---------------------------------------

The progress/logging thread should probably be removed. Though it's not obvious 
where one should report progress for this, a separate thread is definitely 
discouraged. If it's been useful for debugging, then it should at least be 
disabled by default (and named DebugThread or something).

Otherwise this looks great. +1

> Add an example for computing exact digits of Pi
> -----------------------------------------------
>
>                 Key: HADOOP-5052
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5052
>             Project: Hadoop Core
>          Issue Type: New Feature
>          Components: examples
>            Reporter: Tsz Wo (Nicholas), SZE
>            Assignee: Tsz Wo (Nicholas), SZE
>         Attachments: 5052_20090115_0.18.patch, 5052_20090117_0.18.patch, 
> 5052_20090127.patch, 5052_20090203.patch, 5052_20090211.patch
>
>
> It would be useful to add an example showing how to use Hadoop to do 
> scientific computing.  We should add an example for computing exact digits of 
> Pi.

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