maedhroz commented on code in PR #3575:
URL: https://github.com/apache/cassandra/pull/3575#discussion_r1800293237
##########
src/java/org/apache/cassandra/index/sai/plan/QueryController.java:
##########
@@ -168,6 +167,22 @@ public UnfilteredRowIterator queryStorage(PrimaryKey key,
ReadExecutionControlle
return partition.queryMemtableAndDisk(cfs, executionController);
}
+ private static Runnable getIndexReleaser(Set<SSTableIndex>
referencedIndexes)
+ {
+ return new Runnable()
+ {
+ boolean closed;
+ @Override
+ public void run()
+ {
+ if (closed)
+ return;
+ closed = true;
+ referencedIndexes.forEach(SSTableIndex::releaseQuietly);
+ }
+ };
+ }
Review Comment:
The iterator `executeLocally()` produces is closed twice? i.e. The SAI
internal code still closes things at the proper level, but `TxnNamedRead` is
closing both? If so, making the actual site of the closure logic in
`QueryController` enforce idempotence makes sense.
EDIT: ...or you could also enforce idempotent closure in
`KeyRangeIterator#close()` if you feel like that's easier.
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