mjsax commented on a change in pull request #9997:
URL: https://github.com/apache/kafka/pull/9997#discussion_r566580717
##########
File path:
streams/src/main/java/org/apache/kafka/streams/processor/internals/StreamTask.java
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@@ -663,18 +666,21 @@ public boolean isProcessable(final long wallClockTime) {
*/
@SuppressWarnings("unchecked")
public boolean process(final long wallClockTime) {
- if (!isProcessable(wallClockTime)) {
- return false;
- }
+ if (record == null) {
Review comment:
If we have a cached record, it implies we failed to process it before --
thus we don't pull a new record from the buffer but retry to process the cached
record.
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