Github user JoshRosen commented on a diff in the pull request:
https://github.com/apache/spark/pull/16357#discussion_r93323712
--- Diff:
core/src/main/java/org/apache/spark/util/collection/unsafe/sort/UnsafeInMemorySorter.java
---
@@ -256,6 +259,14 @@ public boolean hasNext() {
@Override
public void loadNext() {
+ // Kill the task in case it has been marked as killed. This logic is
from
+ // InterruptibleIterator, but we inline it here instead of wrapping
the iterator in order
+ // to avoid performance overhead. This check is added here in
`loadNext()` instead of in
+ // `hasNext()` because it's technically possible for the caller to
be relying on
+ // `getNumRecords()` instead of `hasNext()` to know when to stop.
+ if (taskContext != null && taskContext.isInterrupted()) {
+ throw new TaskKilledException();
+ }
--- End diff --
We already have this in tight loops in the form of `InterruptibleIterator`
wrapping all over the place.
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