koertkuipers removed a comment on issue #23929: [SPARK-27022][DSTREAMS] Add 
kafka delegation token support.
URL: https://github.com/apache/spark/pull/23929#issuecomment-486801237
 
 
   this is exciting to me.
   
   i tested it on a kafka 2.2.0 cluster that uses gssapi/kerberos for 
authentication, by enabling token support in kafka. to be specific in 
server.properties i changed:
   ```
   - sasl.enabled.mechanisms=GSSAPI
   + sasl.enabled.mechanisms=GSSAPI,SCRAM-SHA-256,SCRAM-SHA-512
   + delegation.token.master.key=somesecret
   ```
   
   note that i kept `sasl.mechanism.inter.broker.protocol=GSSAPI`
   
   i could see my spark structured streaming job obtain kafka token 
successfully. after that i ran into some issues in driver that seemed kafka 
specific. i added comments here:
   
   https://issues.apache.org/jira/browse/KAFKA-7631

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