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https://issues.apache.org/jira/browse/HDFS-3012?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13216088#comment-13216088
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Robert Joseph Evans commented on HDFS-3012:
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@Mahadev,
The Renewer is already static. The issue is that the Renewer code has no
direct interaction with HdfsConfiguration. Just an include is not enough to
ensure that java will load the class and run the static block. In the past,
and in most other locations the HDFS Client would create an instance of
HDFSConfiguration to access any configuration values. This would force it to
load, but because the RM does not interact with HDFS at all, except to renew
and cancel tokens that interaction with HdfsConfiguration must be on the
execution path of the Renewer.
> Exception while renewing delegation token
> -----------------------------------------
>
> Key: HDFS-3012
> URL: https://issues.apache.org/jira/browse/HDFS-3012
> Project: Hadoop HDFS
> Issue Type: Bug
> Affects Versions: 0.23.1
> Reporter: Ramya Sunil
> Assignee: Robert Joseph Evans
> Priority: Critical
> Attachments: HDFS-3012.txt
>
>
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