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[FLINK-21966][python]Support Kinesis connector in Python DataStream API
What is the purpose of the change
Add support for kinesis connector for the Python datastream API
Brief change log
- Add FlinkKinesisProducer
- [ ] Add common setters/getters
- Add FlinkKinesisConsumer
- [ ] Add common setters/getters
Verifying this change
- [ ] Add tests coverage in test_connectors.py
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/Mesos, 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? (not documented)
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Last check on commit 389307fe59892fbef32b99c70a78681d36fb5dd4 (Thu Sep 23 17:59:52 UTC 2021)
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CI report:
- 389307fe59892fbef32b99c70a78681d36fb5dd4 Azure: FAILURE
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We have implemented something similar and started receiving classloader exceptions as below, however the job continues to work fine and stream data from Kinesis:
Job has been submitted with JobID 31975670b3660829abf7e69c3a13c2c6
Exception in thread "Thread-11" java.lang.IllegalStateException: Trying to access closed classloader. Please check if you store classloaders directly or indirectly in static fields. If the stacktrace suggests that the leak occurs in a third party library and cannot be fixed immediately, you can disable this check with the configuration 'classloader.check-leaked-classloader'.
at org.apache.flink.runtime.execution.librarycache.FlinkUserCodeClassLoaders$SafetyNetWrapperClassLoader.ensureInner(FlinkUserCodeClassLoaders.java:164)
at org.apache.flink.runtime.execution.librarycache.FlinkUserCodeClassLoaders$SafetyNetWrapperClassLoader.getResource(FlinkUserCodeClassLoaders.java:183)
at java.lang.ClassLoader.getResource(ClassLoader.java:1084)
at org.apache.hadoop.conf.Configuration.getResource(Configuration.java:2779)
at org.apache.hadoop.conf.Configuration.getStreamReader(Configuration.java:3035)
at org.apache.hadoop.conf.Configuration.loadResource(Configuration.java:2994)
at org.apache.hadoop.conf.Configuration.loadResources(Configuration.java:2967)
at org.apache.hadoop.conf.Configuration.getProps(Configuration.java:2847)
at org.apache.hadoop.conf.Configuration.get(Configuration.java:1199)
at org.apache.hadoop.conf.Configuration.getTimeDuration(Configuration.java:1811)
at org.apache.hadoop.conf.Configuration.getTimeDuration(Configuration.java:1788)
at org.apache.hadoop.util.ShutdownHookManager.getShutdownTimeout(ShutdownHookManager.java:183)
at org.apache.hadoop.util.ShutdownHookManager.shutdownExecutor(ShutdownHookManager.java:145)
at org.apache.hadoop.util.ShutdownHookManager.access$300(ShutdownHookManager.java:65)
at org.apache.hadoop.util.ShutdownHookManager$1.run(ShutdownHookManager.java:102)
We also tried the implementation from this PR and got the same error as above.
Happy to contribute back here and help to debug if someone can point us in the right direction. We are using:
- Flink 1.13.1
- apache-flink==1.13.1 (for pyflink)
- YARN on AWS EMR
-
flink-sql-connector-kinesis_2.11-1.13.1.jar
-
flink run -t yarn-per-job --detached -py /path/to/main.py --pyFiles /path/to/dependencies.zip -pyexec /usr/bin/python3.7 --parallelism 4
to submit the job
I can help if needed as well!
Thanks @xinbinhuang . This would be a great addition
What's the status of this PR? I can help to review if it's updated.
@xinbinhuang this would be very nice to have. Let me know if I can help.
Closed as it should already been supported.