findepi commented on code in PR #10691:
URL: https://github.com/apache/iceberg/pull/10691#discussion_r1675920451
##########
core/src/main/java/org/apache/iceberg/util/ParallelIterable.java:
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@@ -20,65 +20,68 @@
import java.io.Closeable;
import java.io.IOException;
+import java.util.ArrayDeque;
+import java.util.Deque;
import java.util.Iterator;
import java.util.NoSuchElementException;
+import java.util.Optional;
+import java.util.concurrent.Callable;
import java.util.concurrent.ConcurrentLinkedQueue;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Future;
-import org.apache.iceberg.exceptions.RuntimeIOException;
+import java.util.concurrent.atomic.AtomicBoolean;
import org.apache.iceberg.io.CloseableGroup;
import org.apache.iceberg.io.CloseableIterable;
import org.apache.iceberg.io.CloseableIterator;
import org.apache.iceberg.relocated.com.google.common.base.Preconditions;
import org.apache.iceberg.relocated.com.google.common.collect.Iterables;
public class ParallelIterable<T> extends CloseableGroup implements
CloseableIterable<T> {
+
+ private static final int DEFAULT_MAX_QUEUE_SIZE = 10_000;
+
private final Iterable<? extends Iterable<T>> iterables;
private final ExecutorService workerPool;
+ // Bound for number of items in the queue to limit memory consumption
+ // even in the case when input iterables are
Review Comment:
i didn't know either ;)
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