Spark submit to yarn as a another user

hadoop apache-spark yarn kerberos
Benjamin picture Benjamin · Oct 28, 2016 · Viewed 13.1k times · Source

Is it possible to submit a spark job to a yarn cluster and choose, either with the command line or inside the jar, which user will "own" the job?

The spark-submit will be launch from a script containing the user.

PS: is it still possible if the cluster has a kerberos configuration (and the script a keytab) ?

Answer

Samson Scharfrichter picture Samson Scharfrichter · Oct 28, 2016

For a non-kerberized cluster: export HADOOP_USER_NAME=zorro before submitting the Spark job will do the trick.
Make sure to unset HADOOP_USER_NAME afterwards, if you want to revert to your default credentials in the rest of the shell script (or in your interactive shell session).

For a kerberized cluster, the clean way to impersonate another account without trashing your other jobs/sessions (that probably depend on your default ticket) would be something in this line...

export KRB5CCNAME=FILE:/tmp/krb5cc_$(id -u)_temp_$$
kinit -kt ~/.protectedDir/zorro.keytab [email protected]
spark-submit ...........
kdestroy

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