Hi, it maintain itself a individual instance of FlinkKafkaConsumerBase, and it contains a individual pendingOffsetsToCommit , am right ? That is correct! The FlinkKafkaConsumerBase is code executed for each parallel subtask instance, and therefore have their own pendingOffsetsToCommit which would not be manipulated / accessed concurrently.
The only places where that map is accessed is in the snapshotState and notifyCheckpointComplete method, which I think is guaranteed to not be concurrently called. Cheers, Gordon On 2 August 2017 at 1:02:57 PM, aitozi (gjying1...@gmail.com) wrote: Hi,Piotr Nowojski i think you are right, but i think it is executed in parallel, but in each parallel , it maintain itself a individual instance of FlinkKafkaConsumerBase, and it contains a individual pendingOffsetsToCommit , am right ? thanks, aitozi -- View this message in context: http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/About-KafkaConsumerBase-tp14601p14619.html Sent from the Apache Flink User Mailing List archive. mailing list archive at Nabble.com.
