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Zili Chen commented on FLINK-32645: ----------------------------------- The new version series use a differnt GAV. You can find them at https://mvnrepository.com/artifact/org.apache.flink/flink-connector-pulsar. 3.0.1 should be compatible with Flink 1.16. > Flink pulsar sink is having poor performance > -------------------------------------------- > > Key: FLINK-32645 > URL: https://issues.apache.org/jira/browse/FLINK-32645 > Project: Flink > Issue Type: Bug > Components: Connectors / Pulsar > Affects Versions: 1.16.2 > Environment: !Screenshot 2023-07-22 at 1.59.42 PM.png!!Screenshot > 2023-07-22 at 2.03.53 PM.png! > > Reporter: Vijaya Bhaskar V > Priority: Major > Attachments: Screenshot 2023-07-22 at 2.03.53 PM.png, Screenshot > 2023-07-22 at 2.56.55 PM.png, Screenshot 2023-07-22 at 3.45.21 PM-1.png, > Screenshot 2023-07-22 at 3.45.21 PM.png > > > Found following issue with flink pulsar sink: > > Flink pulsar sink is always waiting while enqueueing the message and making > the task slot busy no matter how many free slots we provide. Attached the > screen shot of the same > Just sending messages of less rate 8k msg/sec and stand alone flink job with > discarding sink is able to receive full rate if 8K msg/sec > Where as pulsar sink was consuming only upto 2K msg/sec and the sink is > always busy waiting. Snapshot of thread dump attached. > Also snap shot of flink stream graph attached > > > -- This message was sent by Atlassian Jira (v8.20.10#820010)