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https://issues.apache.org/jira/browse/HADOOP-3750?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12616228#action_12616228
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Tsz Wo (Nicholas), SZE commented on HADOOP-3750:
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> DataNode, FSNamesystem, SecondaryNameNode all depends on StatusHttpServer
> which is in mapred. Split out common part and put in core.
+1
We should create a package in core for the base web server class and the
general servlet classes (e.g. org.apache.hadoop.util.ServletUtil). Should we
create a separated issue for this?
> Fix and enforce module dependencies
> -----------------------------------
>
> Key: HADOOP-3750
> URL: https://issues.apache.org/jira/browse/HADOOP-3750
> Project: Hadoop Core
> Issue Type: Improvement
> Reporter: Tom White
> Fix For: 0.19.0
>
> Attachments: hadoop-3750.patch
>
>
> Since HADOOP-2916 Hadoop Core consists of modules in independent source
> trees: core, hdfs, mapred (and others). The dependencies between them should
> be enforced to avoid cyclic dependencies. At present they all have
> dependencies on each other.
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