sandeep-mst opened a new issue, #23: URL: https://github.com/apache/pulsar-connectors/issues/23
### Search before reporting - [x] I searched in the [issues](https://github.com/apache/pulsar-connector/issues) and found nothing similar. ### Read release policy - [x] I understand that [unsupported versions](https://pulsar.apache.org/contribute/release-policy/#supported-versions) don't get bug fixes. I will attempt to reproduce the issue on a supported version of Pulsar client and Pulsar broker. ### User environment master ### Issue Description During testing kafka-connect-adapter, we observed that the initial acknowledgment for a record is not sent until a new record is added. This occurs when the initial record has an offset of zero. When a subsequent record with a non-zero offset is written to the sink, acknowledgments for both records are sent. A record can have an offset of zero when `useIndexAsOffset == true` and the message index is zero. There are other cases where the computed offset can be zero, see: https://github.com/apache/pulsar-connectors/blob/b8760955f20db284c7779e38ca993ecedb5e563c/kafka-connect-adaptor/src/main/java/org/apache/pulsar/io/kafka/connect/KafkaConnectSink.java#L334 ### Error messages ```text ``` ### Reproducing the issue 1. Send a single record whose offset is computed to `zero` 2. This record will not be acknowledged until a new record with non zero offset is written to the sink and acknowledgements are flushed again. ### Additional information _No response_ ### Are you willing to submit a PR? - [x] I'm willing to submit a PR! -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
