[jira] [Created] (KAFKA-12751) ISRs remain in in-flight state if proposed state is same as actual state

[Rajini Sivaram (Jira)]

Rajini Sivaram created KAFKA-12751:
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             Summary: ISRs remain in in-flight state if proposed state is same 
as actual state
                 Key: KAFKA-12751
                 URL: https://issues.apache.org/jira/browse/KAFKA-12751
             Project: Kafka
          Issue Type: Bug
          Components: core
    Affects Versions: 2.8.0, 2.7.0, 2.7.1
            Reporter: Rajini Sivaram
            Assignee: Rajini Sivaram
             Fix For: 2.7.2, 2.8.1


If proposed ISR state in an AlterIsr request is the same as the actual state, 
Controller returns a successful response without performing any updates. But 
the broker code that processes the response leaves the ISR state in in-flight 
state without committing. This prevents further ISR updates until the next 
leader election.



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