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https://issues.apache.org/jira/browse/KAFKA-10059?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Bob Barrett updated KAFKA-10059:
--------------------------------
Description:
When listing consumer group offsets through the admin client, the map that we
return has a null `OffsetAndMetadata` value if the partition has no committed
offset:
{code:java}
// Negative offset indicates that the group has no committed offset for this
partition
if (offset < 0) {
groupOffsetsListing.put(topicPartition, null);
}{code}
It would be better to return a non-null value that indicates the lack of an
offset, such as `OffsetAndMetadata(-1, Optional.empty(), metadata)`.
was:
When listing consumer group offsets through the admin client, the map that we
return has a null `OffsetAndMetadata` value if the partition has no committed
offset:
```// Negative offset indicates that the group has no committed offset for this
partition
if (offset < 0) {
groupOffsetsListing.put(topicPartition, null);
}
```
It would be better to return a non-null value that indicates the lack of an
offset, such as `OffsetAndMetadata(-1, Optional.empty(), metadata)`.
> KafkaAdminClient returns null OffsetAndMetadata value when there is no
> committed offset for a partition
> -------------------------------------------------------------------------------------------------------
>
> Key: KAFKA-10059
> URL: https://issues.apache.org/jira/browse/KAFKA-10059
> Project: Kafka
> Issue Type: Improvement
> Reporter: Bob Barrett
> Priority: Minor
>
> When listing consumer group offsets through the admin client, the map that we
> return has a null `OffsetAndMetadata` value if the partition has no committed
> offset:
>
> {code:java}
> // Negative offset indicates that the group has no committed offset for this
> partition
> if (offset < 0) {
> groupOffsetsListing.put(topicPartition, null);
> }{code}
>
> It would be better to return a non-null value that indicates the lack of an
> offset, such as `OffsetAndMetadata(-1, Optional.empty(), metadata)`.
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