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https://issues.apache.org/jira/browse/CASSANDRA-4251?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13276949#comment-13276949
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Jonathan Ellis commented on CASSANDRA-4251:
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We don't change CF IDs during the upgrade. So does that mean "after upgrading
and doing concurrent schema updates and hitting CASSANDRA-3794?" Or something
else entirely?
> when loading schema make sure the key and value are not present in the
> cfIdMap (BiDiMap)
> ----------------------------------------------------------------------------------------
>
> Key: CASSANDRA-4251
> URL: https://issues.apache.org/jira/browse/CASSANDRA-4251
> Project: Cassandra
> Issue Type: Improvement
> Components: Core
> Affects Versions: 1.2
> Reporter: Dave Brosius
> Priority: Trivial
> Attachments: better_schema_load_exs.diff
>
>
> google bidimap throws an uncaught runtime exception with less than
> informative information when the cfid already exists in the cfIDMap has it as
> a value. Add a check to the preflight check of the Schema class instead, so
> there is better messaging.
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