loserwang1024 commented on code in PR #29:
URL:
https://github.com/apache/flink-connector-kafka/pull/29#discussion_r1201490891
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flink-connector-kafka/src/main/java/org/apache/flink/connector/kafka/source/enumerator/initializer/SpecifiedOffsetsInitializer.java:
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@@ -38,6 +38,10 @@
* An implementation of {@link OffsetsInitializer} which initializes the
offsets of the partition
* according to the user specified offsets.
*
+ * <p>Use specified offsets for specified partitions while use commit offsets
or earliest for
Review Comment:
@RamanVerma
> These unspecified partitions are initialized to be consumed according to
offsetResetStrategy
>
yes, howerver, OffsetResetStrategy is set to earliest in
OffsetsInitializer#offsets and `KafkaDynamicSource` .
**Maybe I shoud give more desciptions like “use offsetResetStrategy which is
default earliest”.**
> Specified partition's offset should be less than its latest offset,
otherwise it will start from the earliest(maybe offsetResetStrategy).
>
this code is in
org.apache.kafka.clients.consumer.internals.Fetcher#handleOffsetOutOfRange,
which use offsetResetStrategy for offsetOutOfRange.
You can see the last section of FLIP-288, where I provide a detailed
explanation.
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