[jira] [Created] (KAFKA-15341) Enabling TS for a topic during rolling restart causes problems

["Divij Vaidya (Jira)" <ji...@apache.org>]

Divij Vaidya created KAFKA-15341:
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             Summary: Enabling TS for a topic during rolling restart causes problems
                 Key: KAFKA-15341
                 URL: https://issues.apache.org/jira/browse/KAFKA-15341
             Project: Kafka
          Issue Type: Bug
            Reporter: Divij Vaidya
             Fix For: 3.6.0


When we are in a rolling restart to enable TS at system level, some brokers have TS enabled on them and some don't. We send an alter config call to enable TS for a topic, it hits a broker which has TS enabled, this broker forwards it to the controller and controller will send the config update to all brokers. When another broker which doesn't have TS enabled (because it hasn't undergone the restart yet) gets this config change, it "should" fail to apply it. But failing now is too late since alterConfig has already succeeded since controller->broker config propagation is done async.

With this JIRA, we want to have controller check if TS is enabled on all brokers before applying alter config to turn on TS for a topic.



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