zhijiangW commented on a change in pull request #11877:
URL: https://github.com/apache/flink/pull/11877#discussion_r422889022
##########
File path:
flink-runtime/src/main/java/org/apache/flink/runtime/io/network/netty/CreditBasedSequenceNumberingViewReader.java
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@@ -94,13 +99,27 @@ public void requestSubpartitionView(
}
@Override
- public void addCredit(int creditDeltas) {
+ public boolean addCredit(int creditDeltas) {
numCreditsAvailable += creditDeltas;
+ return shouldAnnounceBacklog();
+ }
+
+ @Override
+ public boolean shouldAnnounceBacklog() {
+ return initialCredit == 0 && numCreditsAvailable == 0 &&
subpartitionView.isAvailable(Integer.MAX_VALUE);
}
@Override
- public void resumeConsumption() {
+ public boolean resumeConsumption(int availableCredit, int
unfulfilledBacklog) {
+ if (initialCredit > 0) {
+ checkState(numCreditsAvailable == availableCredit,
"Illegal number of available credit.");
Review comment:
I guess this check is not necessary or invalid.
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