osscm commented on code in PR #11781:
URL: https://github.com/apache/iceberg/pull/11781#discussion_r1885784288


##########
core/src/main/java/org/apache/iceberg/util/ParallelIterable.java:
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@@ -257,17 +257,17 @@ private static class Task<T> implements 
Supplier<Optional<Task<T>>>, Closeable {
     @Override
     public Optional<Task<T>> get() {
       try {
+        if (queue.size() >= approximateMaxQueueSize) {

Review Comment:
   so, each table scan leads to `2*cores` tasks/s3 connections?
   and still can exhaust S3 connections? 



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