August 2017
Beginner to intermediate
278 pages
6h 40m
English
book
Building Data Streaming Applications with Apache Kafka
by Chanchal Singh, Manisha Sethi, Manish Kumar, Anshul Joshi
Content preview from Building Data Streaming Applications with Apache Kafka
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Understanding Zookeeper authentication
Zookeeper is the metadata service for Kafka. SASL-enabled Zookeeper services first authenticate access to metadata stored in Zookeeper. Kafka brokers need to authenticate themselves using Kerberos to use Zookeeper services. If valid, the Kerberos ticket is presented to Zookeeper, it then provides access to the metadata stored in it. After valid authentication, Zookeeper establishes connecting user or service identity. This identity is then used to authorize access to metadata Znodes guarded by ACLs.
One important thing for you to understand is that Zookeeper ACLs restrict modifications to Znodes. Znodes can be read by any client. The philosophy behind this behavior is that sensitive data is not stored ...
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