[jira] [Commented] (SPARK-6918) Secure HBase with Kerberos does not work over YARN

["mark vervuurt (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SPARK-6918?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15046606#comment-15046606 ] 

mark vervuurt commented on SPARK-6918:
--------------------------------------

I am also doubting wether this issue has been resolved we are getting a similar error when trying to read data from HBase from Spark using Spark 1.4.1. within a cluster secured with Kerberos.

> Secure HBase with Kerberos does not work over YARN
> --------------------------------------------------
>
>                 Key: SPARK-6918
>                 URL: https://issues.apache.org/jira/browse/SPARK-6918
>             Project: Spark
>          Issue Type: New Feature
>          Components: YARN
>    Affects Versions: 1.2.1, 1.3.0, 1.3.1
>            Reporter: Dean Chen
>            Assignee: Dean Chen
>             Fix For: 1.4.0
>
>
> Attempts to access HBase from Spark executors will fail at the auth to the metastore with: _GSSException: No valid credentials provided (Mechanism level: Failed to find any Kerberos tgt)_
> This is because HBase Kerberos auth token is not send to the executor. Will need to have something similar to obtainTokensForNamenodes(used for HDFS) in yarn/Client.scala. Storm also needed something similar: https://github.com/apache/storm/pull/226
> I've created a patch for this that required an HBase dependency in the YARN module that we've been using successfully at eBay but am working on a version that does not require the HBase dependency by calling the class loader. Should be ready in a few days.



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