1u0 commented on a change in pull request #9717: [FLINK-14044] [runtime]
Reducing synchronization in AsyncWaitOperator
URL: https://github.com/apache/flink/pull/9717#discussion_r328077048
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File path:
flink-streaming-java/src/main/java/org/apache/flink/streaming/api/operators/async/queue/StreamElementQueue.java
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@@ -19,68 +19,56 @@
package org.apache.flink.streaming.api.operators.async.queue;
import org.apache.flink.annotation.Internal;
+import org.apache.flink.streaming.api.functions.async.ResultFuture;
+import org.apache.flink.streaming.api.operators.TimestampedCollector;
import org.apache.flink.streaming.api.operators.async.AsyncWaitOperator;
+import org.apache.flink.streaming.runtime.streamrecord.StreamElement;
-import java.util.Collection;
+import java.util.List;
+import java.util.Optional;
/**
- * Interface for blocking stream element queues for the {@link
AsyncWaitOperator}.
+ * Interface for a non-blocking stream element queues for the {@link
AsyncWaitOperator}.
Review comment:
Suggestion: remove "blocking/non-blocking" mention at all, as the queues are
not thread safe any more and supposed to be used by one thread.
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