guozhangwang commented on a change in pull request #9247:
URL: https://github.com/apache/kafka/pull/9247#discussion_r485941828
##########
File path:
streams/src/main/java/org/apache/kafka/streams/processor/internals/ProcessorStateManager.java
##########
@@ -662,4 +662,10 @@ public TopicPartition
registeredChangelogPartitionFor(final String storeName) {
public String changelogFor(final String storeName) {
return storeToChangelogTopic.get(storeName);
}
+
+ public void deleteCheckPointFile() throws IOException {
Review comment:
nit: I'd suggest we just inline this function inside `StreamTask` since
1) this is only triggered with EOS enabled, and its name `deleteCheckPointFile`
maybe a bit misleading, and 2) it is a very simply function anyways.
##########
File path:
streams/src/main/java/org/apache/kafka/streams/processor/internals/StreamTask.java
##########
@@ -332,6 +332,15 @@ public void resume() {
case SUSPENDED:
// just transit the state without any logical changes:
suspended and restoring states
// are not actually any different for inner modules
+
+ // Deleting checkpoint file before transition to RESTORING
state (KAFKA-10362)
+ try {
+ stateMgr.deleteCheckPointFile();
+ log.debug("Deleted check point file");
Review comment:
nit: `log.debug("Deleted check point file upon resuming with EOS
enabled");`
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