[jira] [Created] (KAFKA-10027) KIP-584: Implement read path for versioning scheme for features

["Kowshik Prakasam (Jira)" <ji...@apache.org>]

Kowshik Prakasam created KAFKA-10027:
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             Summary: KIP-584: Implement read path for versioning scheme for features
                 Key: KAFKA-10027
                 URL: https://issues.apache.org/jira/browse/KAFKA-10027
             Project: Kafka
          Issue Type: Sub-task
            Reporter: Kowshik Prakasam


Goal is to implement various classes and integration for the read path of the feature versioning system ([KIP-584|https://cwiki.apache.org/confluence/display/KAFKA/KIP-584%3A+Versioning+scheme+for+features]). The ultimate plan is that the cluster-wide *finalized* features information is going to be stored in ZK under the node {{/feature}}. The read path implemented in this PR is centered around reading this *finalized* features information from ZK, and, processing it inside the Broker.

 

Here is a summary of what's needed for this Jira (a lot of it is *new* classes):
 * A facility is provided in the broker to declare it's supported features, and advertise it's supported features via it's own {{BrokerIdZNode}} under a {{features}} key.
 * A facility is provided in the broker to listen to and propagate cluster-wide *finalized* feature changes from ZK.
 * When new *finalized* features are read from ZK, feature incompatibilities are detected by comparing against the broker's own supported features.
 * {{ApiVersionsResponse}} is now served containing supported and finalized feature information (using the newly added tagged fields).



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