zhijiangW commented on a change in pull request #12261:
URL: https://github.com/apache/flink/pull/12261#discussion_r428431678
##########
File path:
flink-runtime/src/main/java/org/apache/flink/runtime/io/network/partition/consumer/RemoteInputChannel.java
##########
@@ -181,6 +181,14 @@ void retriggerSubpartitionRequest(int subpartitionIndex)
throws IOException {
moreAvailable = !receivedBuffers.isEmpty();
}
+ if (next == null) {
Review comment:
FYI: before my changes, we can reproduce these two potential issues in
my below introduced unit tests stable. One case is throwing NPE exception
sometimes, and another case is throwing netty stack exception when same buffer
recycled twice.
----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
For queries about this service, please contact Infrastructure at:
[email protected]
