javanna commented on code in PR #12799:
URL: https://github.com/apache/lucene/pull/12799#discussion_r1399047980
##########
lucene/core/src/java/org/apache/lucene/util/hnsw/HnswConcurrentMergeBuilder.java:
##########
@@ -77,42 +75,17 @@ public OnHeapHnswGraph build(int maxOrd) throws IOException
{
HNSW_COMPONENT,
"build graph from " + maxOrd + " vectors, with " + workers.length +
" workers");
}
- List<Future<?>> futures = new ArrayList<>();
+ List<Callable<Void>> futures = new ArrayList<>();
for (int i = 0; i < workers.length; i++) {
int finalI = i;
futures.add(
- exec.submit(
- () -> {
- try {
- workers[finalI].run(maxOrd);
- } catch (IOException e) {
- throw new RuntimeException(e);
- }
- }));
- }
- Throwable exc = null;
- for (Future<?> future : futures) {
- try {
- future.get();
- } catch (InterruptedException e) {
- var newException = new ThreadInterruptedException(e);
- if (exc == null) {
- exc = newException;
- } else {
- exc.addSuppressed(newException);
- }
- } catch (ExecutionException e) {
- if (exc == null) {
- exc = e.getCause();
- } else {
- exc.addSuppressed(e.getCause());
- }
- }
- }
- if (exc != null) {
- // The error handling was copied from TaskExecutor. should we just use
TaskExecutor instead?
- throw IOUtils.rethrowAlways(exc);
+ () -> {
+ workers[finalI].run(maxOrd);
+ return null;
+ });
}
+ TaskExecutor taskExecutor = new TaskExecutor(exec);
Review Comment:
I see what you mean, I believe you are correct. Would it make sense though
to carry around the TaskExecutor instance instead of the executor service, and
create it earlier as soon as the executor is provided initially as a
constructor argument?
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