dcapwell commented on code in PR #3664:
URL: https://github.com/apache/cassandra/pull/3664#discussion_r1837342983
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src/java/org/apache/cassandra/service/accord/AccordConfigurationService.java:
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@@ -381,7 +388,7 @@ public synchronized void onNodesRemoved(long epoch,
Topology current, Set<Node.I
private long[] nonCompletedEpochsBefore(long max)
{
LongArrayList notComplete = new LongArrayList();
- for (long epoch = epochs.minEpoch(); epoch <= max && epoch <=
epochs.maxEpoch(); epoch++)
+ for (long epoch = epochs.minEpoch(), maxKnown = epochs.maxEpoch();
epoch <= max && epoch <= maxKnown; epoch++)
Review Comment:
I do think we might due to the fact
`accord.impl.AbstractConfigurationService.AbstractEpochHistory#truncateUntil`
could be called and
`accord.impl.AbstractConfigurationService.AbstractEpochHistory#getOrCreate` can
re-populate the past epochs.
so added the lock
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