[FLINK-31319][connectors/kafka] Kafka new source partitionDiscoveryIntervalMs=0 cause bounded source can not quit

[chucheng92]

What is the purpose of the change

Fix error kafka partitionDiscoveryIntervalMs checking for noMoreNewSplits.

Brief change log

Correct partitionDiscoveryIntervalMs checking for noMoreNewSplits with <=0

Verifying this change

Add KafkaEnumeratorTest
#testRunWithDiscoverPartitionsOnceWithZeroMsToCheckNoMoreSplit,
#testRunWithDiscoverPartitionsToCheckNoMoreSplitOnce
#testRunWithPeriodicPartitionDiscoveryToCheckNoMoreSplitOnce
new cases and refine existed cases.

Does this pull request potentially affect one of the following parts:

• Dependencies (does it add or upgrade a dependency): no
• The public API, i.e., is any changed class annotated with @Public(Evolving): no
• The serializers: no
• The runtime per-record code paths (performance sensitive): no
• Anything that affects deployment or recovery: JobManager (and its components), Checkpointing, Kubernetes/Yarn, ZooKeeper: no
• The S3 file system connector: no

Documentation

• Does this pull request introduce a new feature? no
• If yes, how is the feature documented? docs

[flinkbot]

CI report:

• 2a85501 Azure: SUCCESS

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[chucheng92]

@flinkbot run azure

[chucheng92]

@PatrickRen hi, qingsheng. PTAL.

[PatrickRen]

Thanks for the patch @chucheng92 ! LGTM.

As Kafka connector will be migrated from Flink main repo to an individual repo since 1.18, could you close this PR and create a new one in the flink-connector-kafka repo? Also it'll be nice to back port this patch to 1.16 and 1.17 in Flink repo.

[chucheng92]

Thanks for the patch @chucheng92 ! LGTM.

As Kafka connector will be migrated from Flink main repo to an individual repo since 1.18, could you close this PR and create a new one in the flink-connector-kafka repo? Also it'll be nice to back port this patch to 1.16 and 1.17 in Flink repo.

OK. thanks QingSheng.

[chucheng92]

Thanks for the patch @chucheng92 ! LGTM.
As Kafka connector will be migrated from Flink main repo to an individual repo since 1.18, could you close this PR and create a new one in the flink-connector-kafka repo? Also it'll be nice to back port this patch to 1.16 and 1.17 in Flink repo.

OK. thanks QingSheng.

1. PR-8(external-repo)
2. BP-1.16
3. BP-1.17

@PatrickRen Hi, QingSheng. Can you help to check it?