ifesdjeen commented on code in PR #3976:
URL: https://github.com/apache/cassandra/pull/3976#discussion_r1995776443
##########
src/java/org/apache/cassandra/service/accord/CommandsForRanges.java:
##########
@@ -102,22 +104,34 @@ private Loader newLoader(Unseekables<?>
searchKeysOrRanges, RedundantBefore redu
return new Loader(this, searchKeysOrRanges, redundantBefore,
testKind, minTxnId, maxTxnId, findAsDep);
}
+ private void updateTransitive(UnaryOperator<NavigableMap<TxnId,
Ranges>> update)
+ {
+ transitive.updateAndGet(update);
+ }
+
public void mergeTransitive(TxnId txnId, Ranges ranges, BiFunction<?
super Ranges, ? super Ranges, ? extends Ranges> remappingFunction)
{
- transitive.merge(txnId, ranges, remappingFunction);
+ updateTransitive(transitive -> {
+ NavigableMap<TxnId, Ranges> next = new TreeMap<>(transitive);
+ next.merge(txnId, ranges, remappingFunction);
+ return next;
+ });
}
public void gcBefore(TxnId gcBefore, Ranges ranges)
{
- Iterator<Map.Entry<TxnId, Ranges>> iterator =
transitive.headMap(gcBefore).entrySet().iterator();
- while (iterator.hasNext())
- {
- Map.Entry<TxnId, Ranges> e = iterator.next();
- Ranges newRanges = e.getValue().without(ranges);
- if (newRanges.isEmpty())
- iterator.remove();
- e.setValue(newRanges);
- }
+ updateTransitive(transitive -> {
+ NavigableMap<TxnId, Ranges> next = new TreeMap<>();
Review Comment:
pushed update/fix
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