[jira] [Updated] (KAFKA-10143) Can no longer change replication throttle with reassignment tool

["Randall Hauch (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/KAFKA-10143?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Randall Hauch updated KAFKA-10143:
----------------------------------
    Fix Version/s:     (was: 2.6.0)

> Can no longer change replication throttle with reassignment tool
> ----------------------------------------------------------------
>
>                 Key: KAFKA-10143
>                 URL: https://issues.apache.org/jira/browse/KAFKA-10143
>             Project: Kafka
>          Issue Type: Bug
>          Components: core
>    Affects Versions: 2.6.0
>            Reporter: Jason Gustafson
>            Assignee: Jason Gustafson
>            Priority: Blocker
>
> Previously we could use --execute with the --throttle option in order to change the quota of an active reassignment. We seem to have lost this with KIP-455. The code has the following comment:
> {code}
>     val reassignPartitionsInProgress = zkClient.reassignPartitionsInProgress()
>     if (reassignPartitionsInProgress) {
>       // Note: older versions of this tool would modify the broker quotas here (but not
>       // topic quotas, for some reason).  This behavior wasn't documented in the --execute
>       // command line help.  Since it might interfere with other ongoing reassignments,
>       // this behavior was dropped as part of the KIP-455 changes.
>       throw new TerseReassignmentFailureException(cannotExecuteBecauseOfExistingMessage)
>     }
> {code}
> Seems like it was a mistake to change this because it breaks compatibility. We probably have to revert. At the same time, we can make the intent clearer both in the code and in the command help output.



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