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https://issues.apache.org/jira/browse/HDFS-4805?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kihwal Lee updated HDFS-4805:
-----------------------------
Resolution: Fixed
Fix Version/s: 2.0.5-beta
3.0.0
Hadoop Flags: Reviewed
Status: Resolved (was: Patch Available)
The equivalent change for 0.23 will be part of HDFS-4835.
> Webhdfs client is fragile to token renewal errors
> -------------------------------------------------
>
> Key: HDFS-4805
> URL: https://issues.apache.org/jira/browse/HDFS-4805
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: webhdfs
> Affects Versions: 0.23.0, 2.0.0-alpha, 3.0.0
> Reporter: Daryn Sharp
> Assignee: Daryn Sharp
> Priority: Critical
> Fix For: 3.0.0, 2.0.5-beta
>
> Attachments: HDFS-4805.patch
>
>
> Webhdfs internally acquires a token that will be used for DN-based
> operations. The token renewer in common will try to renew that token. If a
> renewal fails for any reason, it will try to get another token. If that
> fails, it gives up and the token webhdfs holds will soon expire.
> A transient network outage or a restart of the NN may cause webhdfs to be
> left holding an expired token, effectively rendering webhdfs useless. This
> is fatal for daemons.
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