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https://issues.apache.org/jira/browse/CASSANDRA-16411?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17273396#comment-17273396
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Berenguer Blasi commented on CASSANDRA-16411:
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The change is in the ccm repo. Dtest repro just points to the new cmm and
cassandra repro just points to the new dtests repro.
Testing involved raising at least 2 nodes + a 3rd one so it was unnecessarily
heavy. Testing for this ticket will be added in CASSANDRA-16296 where we
already need such a cluster for the sake QA speed.
> Fix topology corruption on joining nodes without DC in dtests
> -------------------------------------------------------------
>
> Key: CASSANDRA-16411
> URL: https://issues.apache.org/jira/browse/CASSANDRA-16411
> Project: Cassandra
> Issue Type: Bug
> Components: Test/dtest/python
> Reporter: Berenguer Blasi
> Assignee: Berenguer Blasi
> Priority: Normal
> Fix For: 4.0-beta5, 4.0
>
>
> Dtests with multi-dc setups don't update the topology properties file of a
> newly joining node without dc post cluster creation.
> The new node will join dc1 but it's snitch will report the default snitch
> config as it doesn't get updated == dc1 == all nodes are in dc1 == there are
> no other dcs. That leads to bootstrap, token, startup,... problems.
> Solution: When a new node is added without specifying a dc in dtests check
> for existing dcs. If there are any update the topology file.
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