Github user zhijiangW commented on a diff in the pull request:
https://github.com/apache/flink/pull/4509#discussion_r152454439
--- Diff:
flink-runtime/src/main/java/org/apache/flink/runtime/io/network/partition/consumer/RemoteInputChannel.java
---
@@ -82,17 +84,19 @@
/** The initial number of exclusive buffers assigned to this channel. */
private int initialCredit;
- /** The current available buffers including both exclusive buffers and
requested floating buffers. */
- private final ArrayDeque<Buffer> availableBuffers = new ArrayDeque<>();
+ /** The available buffer queue wraps both exclusive and requested
floating buffers. */
+ private final AvailableBufferQueue bufferQueue = new
AvailableBufferQueue();
/** The number of available buffers that have not been announced to the
producer yet. */
private final AtomicInteger unannouncedCredit = new AtomicInteger(0);
/** The number of unsent buffers in the producer's sub partition. */
- private final AtomicInteger senderBacklog = new AtomicInteger(0);
+ @GuardedBy("bufferQueue")
+ private int senderBacklog;
--- End diff --
agree with it
---
