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https://issues.apache.org/jira/browse/SPARK-5342?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14286543#comment-14286543
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Hari Shreedharan commented on SPARK-5342:
-----------------------------------------
Looks like SPARK-3883 is adding SSL support to even Akka - in which case we
could simply use Akka for sending the new delegation tokens (and avoid the HTTP
Server route).
> Allow long running Spark apps to run on secure YARN/HDFS
> --------------------------------------------------------
>
> Key: SPARK-5342
> URL: https://issues.apache.org/jira/browse/SPARK-5342
> Project: Spark
> Issue Type: Bug
> Components: YARN
> Affects Versions: 1.2.0
> Reporter: Hari Shreedharan
> Attachments: SparkYARN.pdf
>
>
> Currently, Spark apps cannot write to HDFS after the delegation tokens reach
> their expiry, which maxes out at 7 days. We must find a way to ensure that we
> can run applications for longer - for example, spark streaming apps are
> expected to run forever.
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