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https://issues.apache.org/jira/browse/CASSANDRA-21142?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sam Tunnicliffe updated CASSANDRA-21142:
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Bug Category: Parent values: Correctness(12982)Level 1 values:
Consistency(12989)
Complexity: Low Hanging Fruit
Discovered By: Code Inspection
Fix Version/s: 6.x
Severity: Normal
Status: Open (was: Triage Needed)
> Consensus groups for range movements can omit future owners of merging ranges
> -----------------------------------------------------------------------------
>
> Key: CASSANDRA-21142
> URL: https://issues.apache.org/jira/browse/CASSANDRA-21142
> Project: Apache Cassandra
> Issue Type: Bug
> Components: Transactional Cluster Metadata
> Reporter: Sam Tunnicliffe
> Assignee: Sam Tunnicliffe
> Priority: Normal
> Fix For: 6.x
>
>
> The consensus group for a range movement operation is union of current and
> future replicas for all affected ranges. However, when the movement includes
> a merge of existing ranges (i.e. a node leaving or moving) the future
> replicas are incorrectly calculated. If a node's only involvement in the
> operation is to acquire the new merged range, it isn't included in the
> consensus group.
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