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Subject [GitHub] [incubator-hudi] lamber-ken commented on a change in pull request #1377: [HUDI-663] Fix HoodieDeltaStreamer offset not handled correctly
Date Thu, 12 Mar 2020 00:48:36 GMT
lamber-ken commented on a change in pull request #1377: [HUDI-663] Fix HoodieDeltaStreamer
offset not handled correctly
URL: https://github.com/apache/incubator-hudi/pull/1377#discussion_r391348111
 
 

 ##########
 File path: hudi-utilities/src/main/java/org/apache/hudi/utilities/sources/helpers/KafkaOffsetGen.java
 ##########
 @@ -180,7 +180,7 @@ public KafkaOffsetGen(TypedProperties props) {
               .map(x -> new TopicPartition(x.topic(), x.partition())).collect(Collectors.toSet());
 
       // Determine the offset ranges to read from
-      if (lastCheckpointStr.isPresent()) {
+      if (lastCheckpointStr.isPresent() && !lastCheckpointStr.get().isEmpty()) {
 
 Review comment:
   hi @garyli1019, let's imagine a scenario that a topic with no data, the first commit will
save empty checkpoint, then the second commit will always throw exception(even if we send
msg to kafka). In that case, `EARLIEST` or `LATEST` will no longer has any effect. 

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