Github user gaborgsomogyi commented on a diff in the pull request: https://github.com/apache/spark/pull/23195#discussion_r238593413 --- Diff: docs/structured-streaming-kafka-integration.md --- @@ -624,3 +624,56 @@ For experimenting on `spark-shell`, you can also use `--packages` to add `spark- See [Application Submission Guide](submitting-applications.html) for more details about submitting applications with external dependencies. + +## Security + +Kafka 0.9.0.0 introduced several features that increases security in a cluster. For detailed +description about these possibilities, see [Kafka security docs](http://kafka.apache.org/documentation.html#security). + +It's worth noting that security is optional and turned off by default. + +Spark supports the following ways to authenticate against Kafka cluster: +- **Delegation token (introduced in Kafka broker 1.1.0)**: This way the application can be configured + via Spark parameters and may not need JAAS login configuration (Spark can use Kafka's dynamic JAAS + configuration feature). For further information about delegation tokens, see + [Kafka delegation token docs](http://kafka.apache.org/documentation/#security_delegation_token). + + The process is initiated by Spark's Kafka delegation token provider. This is enabled by default --- End diff -- Fixed.
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