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https://issues.apache.org/jira/browse/HDFS-3409?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13273513#comment-13273513
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Aaron T. Myers commented on HDFS-3409:
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Hi Hitesh, should this information definitely be exposed on the 2NN, and not
the NN? HDFS-2943 added much of this info the NN.
> Secondary namenode should expose checkpoint info via JMX
> --------------------------------------------------------
>
> Key: HDFS-3409
> URL: https://issues.apache.org/jira/browse/HDFS-3409
> Project: Hadoop HDFS
> Issue Type: Improvement
> Affects Versions: 1.0.2
> Reporter: Hitesh Shah
>
> Information such as when the last checkpoint was done should be exposed via
> JMX so that it can be easily queried via scripts.
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