Github user justinleet commented on the issue: https://github.com/apache/incubator-metron/pull/518 I've run this up on an EC2 cluster, and been able to get data from the core topologies from Kafka to ES/HDFS. There are a couple caveats spelled out in the metron-deployment README now in a short Kerberos section mentioning that the mpack supports Ambari's Kerberization process. The client process managed to ensure keytabs existed and that the client_jaas was created appropriately.
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