GitHub user harishreedharan opened a pull request:
https://github.com/apache/spark/pull/9875
[SPARK-11662] [YARN]. In Client mode, make sure we re-login before atâ¦
â¦tempting to create new delegation tokens if a new SparkContext is
created within the same application.
Since Hadoop gives precedence to the delegation tokens, we must make sure
we login as a different user, get new tokens and replace the old ones in the
current user's credentials cache to avoid not being able to get new ones.
/cc @tedyu @tgravescs
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/harishreedharan/spark
keytab-relogin-restarted-context
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/9875.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #9875
----
commit 70f610f855c3fd2b3ea9b0a44f6015162f555f87
Author: Hari Shreedharan <[email protected]>
Date: 2015-11-20T23:42:01Z
[SPARK-11662] [YARN]. In Client mode, make sure we re-login before
attempting to create new delegation tokens if a new SparkContext is created
within the same application.
Since Hadoop gives precedence to the delegation tokens, we must make sure
we login as a different user, get new tokens and replace the old ones in the
current user's credentials cache to avoid not being able to get new ones.
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