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https://issues.apache.org/jira/browse/CASSANDRA-10446?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15648584#comment-15648584
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Blake Eggleston commented on CASSANDRA-10446:
---------------------------------------------

In the {{--force}} case it doesn't because {{RepairMessageVerbHandler}} will 
apply the repairedAt value computed at the beginning of the parent session, 
even if some nodes are being left out of the repair.

In the normal case, CASSANDRA-6503 helps, but the inconsistency is still 
possible because {{OnCompletionRunnable}} is run once a node has received all 
the files _it's_ expecting, but not necessarily before other nodes involved in 
the repair have received all their data, and there could still be a failure in 
that time.

> Run repair with down replicas
> -----------------------------
>
>                 Key: CASSANDRA-10446
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-10446
>             Project: Cassandra
>          Issue Type: Improvement
>            Reporter: sankalp kohli
>            Assignee: Blake Eggleston
>            Priority: Minor
>             Fix For: 4.0
>
>
> We should have an option of running repair when replicas are down. We can 
> call it -force.



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