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

["Jason Gustafson (Jira)" <ji...@apache.org>]

Jason Gustafson created KAFKA-10143:
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             Summary: 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: Improvement
            Reporter: Jason Gustafson
             Fix For: 2.6.0


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:
```
    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)
    }
```
Seems like it was a mistake to change this because it breaks compatibility. We probably have to revert.



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