jpountz commented on code in PR #12199:
URL: https://github.com/apache/lucene/pull/12199#discussion_r1133629633
##########
lucene/core/src/java/org/apache/lucene/index/DocumentsWriterPerThreadPool.java:
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@@ -113,15 +113,19 @@ private synchronized DocumentsWriterPerThread newWriter()
{
* operation (add/updateDocument).
*/
DocumentsWriterPerThread getAndLock() {
- synchronized (this) {
- ensureOpen();
- DocumentsWriterPerThread dwpt =
freeList.poll(DocumentsWriterPerThread::tryLock);
- if (dwpt == null) {
- dwpt = newWriter();
+ ensureOpen();
+ DocumentsWriterPerThread dwpt =
freeList.poll(DocumentsWriterPerThread::tryLock);
+ if (dwpt == null) {
Review Comment:
I still have the feeling that you are making incorrect assumptions about
what this piece of code is doing (this method itself doesn't publish the object
to other threads), but I took this thread as a call to keep things simple, so I
removed the retry and added a few more comments about the logic of this pool.
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