[jira] [Assigned] (CASSANDRA-21496) RemoveNodeStreams and ReconfigureCMS RESTORE_REPLICA_COUNT streams received by replicas are mis-parsed as OTHER.

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

     [ https://issues.apache.org/jira/browse/CASSANDRA-21496?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

George reassigned CASSANDRA-21496:
----------------------------------

    Assignee: George

> RemoveNodeStreams and ReconfigureCMS RESTORE_REPLICA_COUNT streams received by replicas are mis-parsed as OTHER.
> ----------------------------------------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-21496
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-21496
>             Project: Apache Cassandra
>          Issue Type: Bug
>            Reporter: Aleksey Yeschenko
>            Assignee: George
>            Priority: Normal
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> {{RemoveNodeStreams#startStreaming()}} and {{ReconfigureCMS#streamRanges()}} build an {{INITIATE_DATA_MOVEMENTS_REQ}} payload
> whose {{streamOperation}} field is set to {{StreamOperation.RESTORE_REPLICA_COUNT.name()}}, i.e. the enum constant name {{RESTORE_REPLICA_COUNT}}.
> {{DataMovementVerbHandler#doVerb()}} on the receiver parses that string with {{StreamOperation.fromString(message.payload.streamOperation))}},
> incorrectly getting {{StreamOperation.OTHER}} (since {{"RESTORE_REPLICA_COUNT" != "Restore replica count"}}).
> Current impact: this causes MVs to require rebuild unnecessarily on removenode.
> Future impact: this affects CEP-45 topology change logic. I have a temporary workaround there but it's inelegant.



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