But as a general saying, if the issue exists on 1.x line then at least 1.20 must have this fix. Let me check that and act accordingly...
BR, G On Wed, Apr 2, 2025 at 5:00 PM Gabor Somogyi <gabor.g.somo...@gmail.com> wrote: > Yeah, new version of Kafka connector is needed to use 2.x. > > > > On Wed, Apr 2, 2025 at 4:56 PM Gulan, Jacob <jacob.gu...@duke-energy.com> > wrote: > >> I'm able to use the 2.x line, but I see that the "flink-connector-kafka" >> latest version is still on 3.4.0-1.20 with no 2.0 tag yet. Will I need to >> wait for the 2.x tag to be released? >> >> ________________________________ >> From: Gabor Somogyi <gabor.g.somo...@gmail.com> >> Sent: Wednesday, April 2, 2025 10:13 AM >> To: dev@flink.apache.org <dev@flink.apache.org> >> Subject: [EXTERNAL] Re: Executing PyFlink Cluster >> >> *** CAUTION! EXTERNAL SENDER *** STOP. ASSESS. VERIFY!! Were you >> expecting this email? Are grammar and spelling correct? Does the content >> make sense? Can you verify the sender? If suspicious report it, then do not >> click links, open attachments or enter your ID or password. >> >> I think I've already fixed this here [1] but only on 2.x line. >> Up until now I thought that only 2.x is using YAML based configs... >> >> [1] https://github.com/apache/flink/pull/26327 >> >> BR, >> G >> >> >> On Wed, Apr 2, 2025 at 4:08 PM Andreas Bube <ab...@toogoodtogo.com.invalid >> > >> wrote: >> >> > There's an open issue that looks very similar: >> > https://issues.apache.org/jira/browse/FLINK-36457. No idea how to work >> > around this. >> > >> > On Wed, 2 Apr 2025 at 15:13, Gulan, Jacob <jacob.gu...@duke-energy.com> >> > wrote: >> > >> > > Hello, >> > > >> > > I've been running into a wall for the past few days trying to get my >> > > PyFlink cluster running in a Docker container on my local machine. >> > > >> > > However, whenever I get to the point in my code where I need to run >> > > env.execute(), I see the following error (full stack trace at bottom >> of >> > > email): >> > > >> > > ``` >> > > java.net.MalformedURLException: no protocol: >> > > ['file:/opt/flink/opt/flink-python-1.19.2.jar'] >> > > ``` >> > > >> > > It appears that the `file://` prefix is being shortened to `file:`, >> but >> > > I'm not setting this anywhere in my code, leading me to believe >> there's >> > > underlying behavior that's creating this inaccurate file path. >> > > >> > > If this error is familiar, I would appreciate any advice as to how to >> > > remediate the issue. I've attached code snippets to this file of my >> > current >> > > implementation. I've tried using both versions 1.19.2 and 1.20.1. >> > > >> > > Thank you for any assistance you may be able to provide. >> > > >> > > >> > > CODE SNIPPET: >> > > ``` >> > > def parse_record(record: str) -> dict: >> > > return json.loads(record) >> > > >> > > >> > > def initialize_environment() -> StreamExecutionEnvironment: >> > > """Initialize the Flink environment""" >> > > env = StreamExecutionEnvironment.get_execution_environment() >> > > >> > > flink_kafka_connector_path: str = str( >> > > (JAR_DIR / "flink-connector-kafka-3.3.0-1.19.jar").resolve() >> > > ) >> > > flink_python_path: str = str( >> > > (JAR_DIR.parent / "opt" / "flink-python-1.19.2.jar").resolve() >> > > ) >> > > >> > > print(f"flink_kafka_connector_path: {flink_kafka_connector_path}") >> > > print(f"flink_python_path: {flink_python_path}") >> > > >> > > env.add_jars(f"file://{flink_kafka_connector_path}", >> > > f"[file://{flink_python_path}]file://{flink_python_path}") >> > > return env >> > > >> > > >> > > def main() -> None: >> > > env: StreamExecutionEnvironment = initialize_environment() >> > > >> > > kafka_properties = { >> > > "bootstrap.servers": BROKERS, >> > > "security.protocol": "SASL_SSL", >> > > "sasl.mechanism": "PLAIN", >> > > "sasl.jaas.config": >> > > f"org.apache.kafka.common.security.plain.PlainLoginModule required >> > > username='{USERNAME}' password='{PASSWORD}';", >> > > } >> > > >> > > kafka_source: KafkaSource = ( >> > > KafkaSource.builder() >> > > .set_topics(SOURCE_TOPIC) >> > > .set_properties(kafka_properties) >> > > .set_starting_offsets(KafkaOffsetsInitializer.earliest()) >> > > .set_value_only_deserializer(SimpleStringSchema()) >> > > .build() >> > > ) >> > > >> > > kafka_sink: KafkaSink = ( >> > > KafkaSink.builder() >> > > .set_bootstrap_servers(BROKERS) >> > > .set_record_serializer( >> > > KafkaRecordSerializationSchema.builder() >> > > .set_topic(DESTINATION_TOPIC) >> > > .set_value_serialization_schema(SimpleStringSchema()) >> > > .build() >> > > ) >> > > .set_delivery_guarantee(DeliveryGuarantee.AT_LEAST_ONCE) >> > > .build() >> > > ) >> > > >> > > data_stream = env.from_source( >> > > kafka_source, >> > > WatermarkStrategy.no_watermarks(), >> > > "Kafka Source", >> > > ) >> > > transformed_data = data_stream.map(parse_record, >> > > output_type=Types.STRING()) >> > > transformed_data.sink_to(kafka_sink) >> > > >> > > print("START EXECUTING!") >> > > >> > > env.execute() >> > > >> > > >> > > if __name__ == "__main__": >> > > main() >> > > ``` >> > > >> > > >> > > >> > > DOCKERFILE: >> > > >> > > ``` >> > > >> > > >> > >> ############################################################################## >> > > # Stage 1 - Build uber jar using Maven >> > > >> > > >> > >> ############################################################################## >> > > >> > > # Set arguments for image versions >> > > ARG JAVA_VERSION=11 >> > > ARG FLINK_VERSION=1.19 >> > > ARG SCALA_VERSION=scala_2.12 >> > > >> > > # Source build image >> > > FROM maven:3.9-amazoncorretto-${JAVA_VERSION} AS build >> > > >> > > # Build jars >> > > WORKDIR /build >> > > COPY pom.xml . >> > > RUN mvn dependency:copy-dependencies -DoutputDirectory=/build/jars >> > > >> > > >> > > >> > > >> > >> ############################################################################## >> > > # Stage 2 - Create the final image >> > > >> > > >> > >> ############################################################################## >> > > >> > > # Source image >> > > FROM flink:${FLINK_VERSION}-${SCALA_VERSION}-java${JAVA_VERSION} >> > > >> > > # Install Python >> > > RUN apt-get update && apt-get install -y python3.11 python3-pip >> > > >> > > # Copy the built jars from the Maven stage >> > > COPY --from=build /build/jars /opt/flink/lib >> > > >> > > # Create symlink so that "python" points to "python3.11" >> > > RUN ln -s /usr/bin/python3.11 /usr/bin/python >> > > >> > > # Set the working directory >> > > WORKDIR /opt/flink/src >> > > >> > > # Copy the Python project files >> > > COPY pyproject.toml . >> > > COPY README.md . >> > > COPY dataproducts /opt/flink/src/dataproducts >> > > >> > > # Go get a cup of coffee, this will take a while ☕ >> > > RUN python3.11 -m pip install . \ >> > > --no-cache-dir >> > > ``` >> > > >> > > STACK TRACE: >> > > ``` >> > > root@9e14f49ae422:/opt/flink/src/dataproducts# flink run -py main.py >> > > WARNING: Unknown module: jdk.compiler specified to --add-exports >> > > WARNING: Unknown module: jdk.compiler specified to --add-exports >> > > WARNING: Unknown module: jdk.compiler specified to --add-exports >> > > WARNING: Unknown module: jdk.compiler specified to --add-exports >> > > WARNING: Unknown module: jdk.compiler specified to --add-exports >> > > flink_kafka_connector_path: >> > > /opt/flink/lib/flink-connector-kafka-3.3.0-1.19.jar >> > > flink_python_path: /opt/flink/opt/flink-python-1.19.2.jar >> > > START EXECUTING! >> > > Traceback (most recent call last): >> > > File "/opt/flink/src/dataproducts/main.py", line 97, in <module> >> > > main() >> > > File "/opt/flink/src/dataproducts/main.py", line 93, in main >> > > env.execute() >> > > File >> > > >> > >> "/opt/flink/opt/python/pyflink.zip/pyflink/datastream/stream_execution_environment.py", >> > > line 813, in execute >> > > File >> > "/opt/flink/opt/python/py4j-0.10.9.7-src.zip/py4j/java_gateway.py", >> > > line 1322, in __call__ >> > > File "/opt/flink/opt/python/pyflink.zip/pyflink/util/exceptions.py", >> > > line 146, in deco >> > > File "/opt/flink/opt/python/py4j-0.10.9.7-src.zip/py4j/protocol.py", >> > > line 326, in get_return_value >> > > py4j.protocol.Py4JJavaError: An error occurred while calling >> o0.execute. >> > > : java.net.MalformedURLException: no protocol: >> > > ['file:/opt/flink/opt/flink-python-1.19.2.jar'] >> > > at java.base/java.net.URL.<init>(Unknown Source) >> > > at java.base/java.net.URL.<init>(Unknown Source) >> > > at java.base/java.net.URL.<init>(Unknown Source) >> > > at >> > > >> > >> org.apache.flink.configuration.ConfigUtils.decodeListFromConfig(ConfigUtils.java:133) >> > > at >> > > >> > >> org.apache.flink.client.cli.ExecutionConfigAccessor.getJars(ExecutionConfigAccessor.java:77) >> > > at >> > > >> > >> org.apache.flink.client.deployment.executors.PipelineExecutorUtils.getJobGraph(PipelineExecutorUtils.java:77) >> > > at >> > > >> > >> org.apache.flink.client.deployment.executors.AbstractSessionClusterExecutor.execute(AbstractSessionClusterExecutor.java:72) >> > > at >> > > >> > >> org.apache.flink.streaming.api.environment.StreamExecutionEnvironment.executeAsync(StreamExecutionEnvironment.java:2440) >> > > at >> > > >> > >> org.apache.flink.client.program.StreamContextEnvironment.executeAsync(StreamContextEnvironment.java:188) >> > > at >> > > >> > >> org.apache.flink.client.program.StreamContextEnvironment.execute(StreamContextEnvironment.java:117) >> > > at >> > > java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native >> > > Method) >> > > at >> > > java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown >> > > Source) >> > > at >> > > >> > >> java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown >> > > Source) >> > > at java.base/java.lang.reflect.Method.invoke(Unknown Source) >> > > at >> > > >> > >> org.apache.flink.api.python.shaded.py4j.reflection.MethodInvoker.invoke(MethodInvoker.java:244) >> > > at >> > > >> > >> org.apache.flink.api.python.shaded.py4j.reflection.ReflectionEngine.invoke(ReflectionEngine.java:374) >> > > at >> > > >> org.apache.flink.api.python.shaded.py4j.Gateway.invoke(Gateway.java:282) >> > > at >> > > >> > >> org.apache.flink.api.python.shaded.py4j.commands.AbstractCommand.invokeMethod(AbstractCommand.java:132) >> > > at >> > > >> > >> org.apache.flink.api.python.shaded.py4j.commands.CallCommand.execute(CallCommand.java:79) >> > > at >> > > >> > >> org.apache.flink.api.python.shaded.py4j.GatewayConnection.run(GatewayConnection.java:238) >> > > at java.base/java.lang.Thread.run(Unknown Source) >> > > >> > > org.apache.flink.client.program.ProgramAbortException: >> > > java.lang.RuntimeException: Python process exits with code: 1 >> > > at >> > > >> org.apache.flink.client.python.PythonDriver.main(PythonDriver.java:134) >> > > at >> > > java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native >> > > Method) >> > > at >> > > java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown >> > > Source) >> > > at >> > > >> > >> java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown >> > > Source) >> > > at java.base/java.lang.reflect.Method.invoke(Unknown Source) >> > > at >> > > >> > >> org.apache.flink.client.program.PackagedProgram.callMainMethod(PackagedProgram.java:355) >> > > at >> > > >> > >> org.apache.flink.client.program.PackagedProgram.invokeInteractiveModeForExecution(PackagedProgram.java:222) >> > > at >> > > >> org.apache.flink.client.ClientUtils.executeProgram(ClientUtils.java:108) >> > > at >> > > >> > >> org.apache.flink.client.cli.CliFrontend.executeProgram(CliFrontend.java:1026) >> > > at >> > > org.apache.flink.client.cli.CliFrontend.run(CliFrontend.java:247) >> > > at >> > > >> > >> org.apache.flink.client.cli.CliFrontend.parseAndRun(CliFrontend.java:1270) >> > > at >> > > >> > >> org.apache.flink.client.cli.CliFrontend.lambda$mainInternal$10(CliFrontend.java:1367) >> > > at >> > > >> > >> org.apache.flink.runtime.security.contexts.NoOpSecurityContext.runSecured(NoOpSecurityContext.java:28) >> > > at >> > > >> > >> org.apache.flink.client.cli.CliFrontend.mainInternal(CliFrontend.java:1367) >> > > at >> > > org.apache.flink.client.cli.CliFrontend.main(CliFrontend.java:1335) >> > > Caused by: java.lang.RuntimeException: Python process exits with >> code: 1 >> > > at >> > > >> org.apache.flink.client.python.PythonDriver.main(PythonDriver.java:124) >> > > ... 14 more >> > > ``` >> > > >> > >> >
