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https://issues.apache.org/jira/browse/HBASE-15570?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16027001#comment-16027001
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Mike Drob commented on HBASE-15570:
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[~busbey] - I think SPARK-12523 is the one that fixes this, not SPARK-14743,
available in Spark 2.0
I'm not sure that a fix to the Spark 1.6.z line will be coming.
> renewable delegation tokens for long-lived spark applications
> -------------------------------------------------------------
>
> Key: HBASE-15570
> URL: https://issues.apache.org/jira/browse/HBASE-15570
> Project: HBase
> Issue Type: Improvement
> Components: spark
> Reporter: Sean Busbey
> Assignee: Sean Busbey
>
> Right now our spark integration works on secure clusters by getting
> delegation tokens and sending them to the executors. Unfortunately,
> applications that need to run for longer than the delegation token lifetime
> (by default 7 days) will fail.
> In particular, this is an issue for Spark Streaming applications. Since they
> expect to run indefinitely, we should have a means for renewing the
> delegation tokens.
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