zhijiangW commented on a change in pull request #11687:
URL: https://github.com/apache/flink/pull/11687#discussion_r419521815
##########
File path:
flink-runtime/src/main/java/org/apache/flink/runtime/io/network/partition/consumer/LocalInputChannel.java
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@@ -97,6 +100,18 @@ public LocalInputChannel(
// Consume
//
------------------------------------------------------------------------
+ @Override
+ public void readRecoveredState(ChannelStateReader reader) throws
IOException, InterruptedException {
+ synchronized (bufferQueue) {
+ // In most of cases we only need one buffer for reading
recovered state except in very large record case.
+ // Then only one floating buffer is required to avoid
receive more floating buffers after recovery. Even
+ // though we need more buffers for recovery in large
record case, it only increases some interactions with pool.
+ numRequiredBuffers = 1;
+ }
+
+ super.readRecoveredState(reader);
Review comment:
what is the issue here?
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