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https://issues.apache.org/jira/browse/HIVE-16973?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16081405#comment-16081405
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Pengcheng Xiong commented on HIVE-16973:
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Hello, I am deferring this to Hive 3.0 as we are going to cut the next RC and
it is not marked as blocker. Please feel free to commit to the branch if this
can be resolved before the release.Thanks!
> Fetching of Delegation tokens (Kerberos) for AccumuloStorageHandler fails in
> HS2
> --------------------------------------------------------------------------------
>
> Key: HIVE-16973
> URL: https://issues.apache.org/jira/browse/HIVE-16973
> Project: Hive
> Issue Type: Bug
> Components: Accumulo Storage Handler
> Reporter: Josh Elser
> Assignee: Josh Elser
> Attachments: HIVE-16973.001.patch, HIVE-16973.002.branch-2.patch,
> HIVE-16973.003.branch-2.patch, HIVE-16973.004-branch-2.patch,
> HIVE-16973.004.branch-2.patch
>
>
> Had a report from a user that Kerberos+AccumuloStorageHandler+HS2 was broken.
> Looking into it, it seems like the bit-rot got pretty bad. You'll see
> something like the following:
> {noformat}
> Caused by: java.io.IOException: Failed to unwrap AuthenticationToken
> at
> org.apache.hadoop.hive.accumulo.HiveAccumuloHelper.unwrapAuthenticationToken(HiveAccumuloHelper.java:312)
>
> at
> org.apache.hadoop.hive.accumulo.mr.HiveAccumuloTableInputFormat.getSplits(HiveAccumuloTableInputFormat.java:122)
>
> {noformat}
> It appears that some of the code-paths changed since when I first did my
> testing (or I just did poor testing) and the delegation token was never being
> fetched/serialized. There also are some issues with fetching the delegation
> token from Accumulo properly which were addressed in ACCUMULO-4665
> I believe it would also be best to just update the dependency to use Accumulo
> 1.7 (drop 1.6 support) as it's lacking in this regard. These changes would
> otherwise get much more complicated with reflection -- Accumulo has moved on
> past 1.6, so let's do the same in Hive.
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