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https://issues.apache.org/jira/browse/CASSANDRA-4047?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13614070#comment-13614070
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Brandon Williams commented on CASSANDRA-4047:
---------------------------------------------

I think I have a plan here that can avoid the hell of making MS multi-port.  
Akin to how shuffle works with creating a 'schedule' for transfers, upon 
failure we can insert the range that failed into a system table on a replica 
that succeeded via thrift, and when the node recovers we can repair the range.
                
> Bulk hinting
> ------------
>
>                 Key: CASSANDRA-4047
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-4047
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Core
>            Reporter: Brandon Williams
>            Assignee: Brandon Williams
>             Fix For: 2.0
>
>
> With the introduction of the BulkOutputFormat, there may be cases where 
> someone would like to tolerate node failures and have the job complete, but 
> afterwards since we streamed they have to repair or rely on read repair.  We 
> don't currently have any way of hinting streams, but a node could take a 
> snapshot before acknowledging the stream session, then remember to send the 
> files in the snapshot to the unavailable nodes when they come back up.  This 
> isn't quite ideal since of course the node may have compacted these files, 
> however it's much simpler than any sort of key tracking at this scale.

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