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From Eron Wright <ewri...@live.com>
Subject Kerberos for Streaming & Kafka
Date Thu, 24 Mar 2016 23:10:01 GMT
Given the other thread about per-job Kerberos identity, now's a good time to discuss some
problems with the current delegation-token approach, since the answer could bear on the per-job
Two problems:Delegation tokens expire.  For a continuous streaming job to survive, the original
keytab is needed to re-authenticate.   Spark Streaming solved this problem with `--keytab`
on spark-submit (see AMDelegationTokenRenewer.scala).Kafka doesn't support delegation tokens
yet (see KIP-48 and KAFKA-1696).
Thoughts?  Thanks!
- Eron Wright
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