Github user harshach commented on the issue:
https://github.com/apache/storm/pull/2062
@liu-zhaokun with the latest kafka consumer APIs one can pass a keytab and
principal via consumer or producer properties. Even before that they can pass
the jaas config via JVM param and set security.protocol to SASL_PLAINTEXT.
with the new kafka client APIs we are trying hard to remain with configs
supported by them. Let's not introduce to new configs on storm side to make it
confusing for the user.
I am -1 on this.
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