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https://issues.apache.org/jira/browse/NIFI-12137?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Joe Witt updated NIFI-12137:
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Summary: Improve Java Python processor behaviors in NiFi 2x (was: Improve
Java 2x Python processor behaviors)
> Improve Java Python processor behaviors in NiFi 2x
> --------------------------------------------------
>
> Key: NIFI-12137
> URL: https://issues.apache.org/jira/browse/NIFI-12137
> Project: Apache NiFi
> Issue Type: Bug
> Reporter: Joe Witt
> Priority: Major
>
> Built a python processor. Deployed as version 0.0.1. Updated to 0.0.2
> replacing original file. Updated to 0.0.3. Then started just keeping same
> version and restarting processor. However, on restart I received this output
> {noformat}
> 2023-09-26 13:00:10 2023-09-26 20:00:06,984 ERROR [NiFi Web Server-140]
> o.a.n.n.StandardExtensionDiscoveringManager Could not instantiate class of
> type python.LookupAddress using ClassLoader for bundle
> org.apache.nifi:python-extensions:0.0.1-SNAPSHOT
> 2023-09-26 13:00:10 py4j.Py4JException: An exception was raised by the Python
> Proxy. Return Message: Traceback (most recent call last):
> 2023-09-26 13:00:10 File
> "/opt/nifi/nifi-current/python/framework/py4j/java_gateway.py", line 2466, in
> _call_proxy
> 2023-09-26 13:00:10 return_value = getattr(self.pool[obj_id],
> method)(*params)
> 2023-09-26 13:00:10 File
> "/opt/nifi/nifi-current/./python/framework/Controller.py", line 52, in
> createProcessor
> 2023-09-26 13:00:10 processorClass =
> self.extensionManager.getProcessorClass(processorType, version, work_dir)
> 2023-09-26 13:00:10 File
> "/opt/nifi/nifi-current/python/framework/ExtensionManager.py", line 138, in
> getProcessorClass
> 2023-09-26 13:00:10 raise ValueError('Invalid Processor Type: No module
> is known to contain Processor of type ' + type + ' version ' + version)
> 2023-09-26 13:00:10 ValueError: Invalid Processor Type: No module is known to
> contain Processor of type LookupAddress version 0.0.1-SNAPSHOT
> 2023-09-26 13:00:10
> 2023-09-26 13:00:10 at py4j.Protocol.getReturnValue(Protocol.java:476)
> 2023-09-26 13:00:09 tail: '/opt/nifi/nifi-current/logs/nifi-app.log' has been
> replaced; following new file
> {noformat}
> In a flow using a FlowFileTransform I am seeing data when I route it to
> faillure also going to original. If routed to failure it should not go to
> original. Original should only be when success is the chosen route. Will
> replicate and add more info here.
> We should change ExpressionLanguageScope.LIMITED to ENVIRONMENT.
> We should try to use python conventions on all method names instead of Java
> conventions.
> Can we define the 'logger' that gets injected to implementations so code
> completion can work in IDEs in the meantime?
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