Yuqi Yan created CASSANDRA-21427:
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Summary: UnsupportedOperationException on live node check in
PaxosRepair
Key: CASSANDRA-21427
URL: https://issues.apache.org/jira/browse/CASSANDRA-21427
Project: Apache Cassandra
Issue Type: Bug
Reporter: Yuqi Yan
Assignee: Yuqi Yan
{code:java}
j.l.UnsupportedOperationException: null at
o.a.c.l.AbstractReplicaCollection$ReplicaMap$AbstractImmutableSet.removeAll(AbstractReplicaCollection.java:298)
at
o.a.c.s.ActiveRepairService.repairPaxosForTopologyChange(ActiveRepairService.java:1088)
{code}
Attempting to remove elements from immutable set caused this
UnsupportedOperationException - swallowed the error message for "Insufficient
live nodes to repair paxos check".
Not a harmful one but did make log reading less straightfoward
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