KarmaGYZ commented on a change in pull request #18417:
URL: https://github.com/apache/flink/pull/18417#discussion_r805648663
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File path:
flink-runtime/src/main/java/org/apache/flink/runtime/io/network/netty/NettyPartitionRequestClient.java
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@@ -222,22 +227,33 @@ public void close(RemoteInputChannel inputChannel) throws
IOException {
clientHandler.removeInputChannel(inputChannel);
- if (closeReferenceCounter.decrement()) {
- // Close the TCP connection. Send a close request msg to ensure
- // that outstanding backwards task events are not discarded.
- tcpChannel
- .writeAndFlush(new NettyMessage.CloseRequest())
- .addListener(ChannelFutureListener.CLOSE_ON_FAILURE);
-
- // Make sure to remove the client from the factory
- clientFactory.destroyPartitionRequestClient(connectionId, this);
+ if (closeReferenceCounter.getAndUpdate(count -> count > 0 ? count - 1
: count) == 1
+ && !canBeReused()) {
Review comment:
I don't think so. We close the connection only the first time the
counter reaches zero.
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