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https://issues.apache.org/jira/browse/HDFS-5004?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13740532#comment-13740532
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Konstantin Shvachko commented on HDFS-5004:
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Cos, you need to move the record about this jira in CHANGES.txt on trunk under
2.3.0 section. It is inconsistent now.
> Add additional JMX bean for NameNode status data
> ------------------------------------------------
>
> Key: HDFS-5004
> URL: https://issues.apache.org/jira/browse/HDFS-5004
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: namenode
> Affects Versions: 3.0.0, 2.1.0-beta, 2.0.4-alpha
> Reporter: Trevor Lorimer
> Assignee: Trevor Lorimer
> Fix For: 3.0.0, 2.3.0
>
> Attachments: HDFS-5004.diff, HDFS-5004.diff, HDFS-5004.diff
>
>
> Currently the JMX beans returns much of the data contained on the HDFS Health
> webpage (dfsHealth.html). However there are several other attributes that are
> required to be added, that can only be accessed from within NameNode.
> For this reason a new JMX bean is required (NameNodeStatusMXBean) which will
> expose the following attributes in NameNode:
> Role
> State
> HostAndPort
> also a list of the corruptedFiles should be exposed by NameNodeMXBean.
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