zhaih commented on code in PR #13124:
URL: https://github.com/apache/lucene/pull/13124#discussion_r1503101967
##########
lucene/core/src/java/org/apache/lucene/index/ConcurrentMergeScheduler.java:
##########
@@ -910,4 +936,58 @@ public void setSuppressExceptions(ConcurrentMergeScheduler
cms) {
}
});
}
+
+ private class ScaledExecutor extends ThreadPoolExecutor {
+
+ AtomicInteger activeCount = new AtomicInteger(0);
+
+ public ScaledExecutor() {
+ super(
+ Math.max(0, maxThreadCount - 1),
+ Math.max(1, maxThreadCount - 1),
+ Long.MAX_VALUE,
+ TimeUnit.NANOSECONDS,
+ new SynchronousQueue<>());
+ }
+
+ private void updatePoolSize() {
+ int newMax = Math.max(0, maxThreadCount - 1);
+ if (newMax > getCorePoolSize()) {
+ setMaximumPoolSize(Math.max(newMax, 1));
+ setCorePoolSize(newMax);
+ } else {
+ setCorePoolSize(newMax);
+ setMaximumPoolSize(Math.max(newMax, 1));
Review Comment:
Aren't those two branch the same?
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