Benedict created CASSANDRA-14801:
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Summary: calculatePendingRanges no longer safe for multiple
adjacent range movements
Key: CASSANDRA-14801
URL: https://issues.apache.org/jira/browse/CASSANDRA-14801
Project: Cassandra
Issue Type: Bug
Components: Coordination, Distributed Metadata
Reporter: Benedict
Fix For: 4.0
Correctness depended upon the narrowing to a {{Set<InetAddressAndport>}}, which
we no longer do - we maintain a collection of all {{Replica}}. Our
{{RangesAtEndpoint}} collection built by {{getPendingRanges}} can as a result
contain the same endpoint multiple times; and our {{EndpointsForToken}}
obtained by {{TokenMetadata.pendingEndpointsFor}} may fail to be constructed,
resulting in cluster-wide failures for writes to the affected token ranges for
the duration of the range movement.
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