GitHub user vanzin opened a pull request:
https://github.com/apache/spark/pull/11358
[SPARK-13478] [yarn] Use real user when fetching delegation tokens.
The Hive client library is not smart enough to notice that the current
user is a proxy user; so when using a proxy user, it fails to fetch
delegation tokens from the metastore because of a missing kerberos
TGT for the current user.
To fix it, just run the code that fetches the delegation token as the
real logged in user.
Tested on a kerberos cluster both submitting normally and with a proxy
user; Hive and HBase tokens are retrieved correctly in both cases.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/vanzin/spark SPARK-13478
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/11358.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 #11358
----
commit a63d7477812f59ca40b9b9ee82844df149bab296
Author: Marcelo Vanzin <[email protected]>
Date: 2016-02-24T23:30:39Z
[SPARK-13478] [yarn] Use real user when fetching delegation tokens.
The Hive client library is not smart enough to notice that the current
user is a proxy user; so when using a proxy user, it fails to fetch
delegation tokens from the metastore because of a missing kerberos
TGT for the current user.
To fix it, just run the code that fetches the delegation token as the
real logged in user.
Tested on a kerberos cluster both submitting normally and with a proxy
user; Hive and HBase tokens are retrieved correctly in both cases.
----
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