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https://issues.apache.org/jira/browse/CASSANDRA-17407?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17502160#comment-17502160
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Berenguer Blasi commented on CASSANDRA-17407:
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Hi [~Jan Karlsson],
thanks for the patch. Can we please improve the error message by including in
it the list of non-existing DCs and make the dtest check that? I am sure there
is some user out there with 10 DCs and he's going to be having to test one by
one which one doesn't exist lol!
> Validate existence of DCs when repairing
> ----------------------------------------
>
> Key: CASSANDRA-17407
> URL: https://issues.apache.org/jira/browse/CASSANDRA-17407
> Project: Cassandra
> Issue Type: Improvement
> Components: Consistency/Repair
> Reporter: Jan Karlsson
> Assignee: Jan Karlsson
> Priority: Normal
> Fix For: 3.11.x, 4.0.x
>
>
> With the new validation of data centers in the replication factor, it might
> be good to give similar treatment to repair.
> Currently the behavior of the --in-dc flag only validates that it contains
> the local data center.
> If a list is given containing nonexistent data centers, the repair will pass
> without errors or warning as long as this list also contains the local data
> center.
> My suggestion would be to validate all the data centers and give an error
> when a nonexistent data center is given.
>
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