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https://issues.apache.org/jira/browse/OOZIE-2531?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15290562#comment-15290562
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Robert Kanter commented on OOZIE-2531:
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Thanks Satish. Committed to master!
> Prevent Spark trying for token which is already available
> ----------------------------------------------------------
>
> Key: OOZIE-2531
> URL: https://issues.apache.org/jira/browse/OOZIE-2531
> Project: Oozie
> Issue Type: Improvement
> Reporter: Satish Subhashrao Saley
> Assignee: Satish Subhashrao Saley
> Attachments: OOZIE-2531-1.patch, OOZIE-2531-2.patch
>
>
> As per [Apache Spark
> documentation|http://spark.apache.org/docs/latest/running-on-yarn.html#spark-properties]
> :
> The property {{spark.yarn.security.tokens.service.enabled}} in Apache Spark
> which controls whether to retrieve delegation tokens for non-HDFS services
> when security is enabled. By default, delegation tokens for all supported
> services are retrieved when those services are configured, but it's possible
> to disable that behavior if it somehow conflicts with the application being
> run.
> Currently supported services are: hive, hbase
> It would be good to have default as
> {{spark.yarn.security.tokens.hive.enabled=false}} to avoid having Spark
> redundantly retry obtaining a token when it already has one (passed
> originally from Oozie's hcat credentials).
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