quux00 commented on code in PR #12523:
URL: https://github.com/apache/lucene/pull/12523#discussion_r1343180733
##########
lucene/core/src/test/org/apache/lucene/search/TestIndexSearcher.java:
##########
@@ -267,7 +266,133 @@ protected LeafSlice[] slices(List<LeafReaderContext>
leaves) {
return slices.toArray(new LeafSlice[0]);
}
};
- searcher.search(new MatchAllDocsQuery(), 10);
- assertEquals(leaves.size(), numExecutions.get());
+ TopDocs topDocs = searcher.search(new MatchAllDocsQuery(), 10);
+ assertTrue(topDocs.totalHits.value > 0);
+ if (leaves.size() <= 1) {
+ assertEquals(0, numExecutions.get());
+ } else {
+ assertEquals(leaves.size(), numExecutions.get());
+ }
+ }
+
+ /**
+ * Tests that when IndexerSearcher runs concurrent searches on multiple
slices if any Exception is
+ * thrown by one of the slice tasks, it will not return until all tasks have
completed.
+ */
+ public void testMultipleSegmentsOnTheExecutorWithException() {
+ List<LeafReaderContext> leaves = reader.leaves();
+ int fixedThreads = leaves.size() == 1 ? 1 : leaves.size() / 2;
+
+ ExecutorService fixedThreadPoolExecutor =
+ Executors.newFixedThreadPool(fixedThreads, new
NamedThreadFactory("concurrent-slices"));
+
+ IndexSearcher searcher =
+ new IndexSearcher(reader, fixedThreadPoolExecutor) {
+ @Override
+ protected LeafSlice[] slices(List<LeafReaderContext> leaves) {
+ ArrayList<LeafSlice> slices = new ArrayList<>();
+ for (LeafReaderContext ctx : leaves) {
+ slices.add(new LeafSlice(Arrays.asList(ctx)));
+ }
+ return slices.toArray(new LeafSlice[0]);
Review Comment:
Got it. Fixed.
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