[
https://issues.apache.org/jira/browse/HDFS-7182?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14157060#comment-14157060
]
Akira AJISAKA commented on HDFS-7182:
-------------------------------------
The patch looks good to me. +1 (non-binding) pending Jenkins.
> JMX metrics aren't accessible when NN is busy
> ---------------------------------------------
>
> Key: HDFS-7182
> URL: https://issues.apache.org/jira/browse/HDFS-7182
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Ming Ma
> Assignee: Ming Ma
> Attachments: HDFS-7182.patch
>
>
> HDFS-5693 has addressed all NN JMX metrics in hadoop 2.0.5. Since then couple
> new metrics have been added. It turns out "RollingUpgradeStatus" requires
> FSNamesystem read lock.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
