Thierry PRATS created NIFI-8494:
-----------------------------------
Summary: InvokeScriptedProcessor become invalid after stopped
Key: NIFI-8494
URL: https://issues.apache.org/jira/browse/NIFI-8494
Project: Apache NiFi
Issue Type: Bug
Components: Extensions
Affects Versions: 1.13.2
Environment: Ubuntu 20.04 LTS
openjdk version "11.0.10" 2021-01-19
Reporter: Thierry PRATS
Fix For: 1.11.3, 1.2.0
InvokeScriptedProcessor works well when started for the first time.
The Processor become invalid after stopped and cannot be started anymore, also
after change parameters. This message appears : Unable to load script: No
processor was defined by the script.
We have to delete and recreate the Processor to start it.
The Processor is configured like this :
Script Engine : python
Script body :
{code:java}
from org.apache.nifi.processor import Processor, Relationship
from java.lang import Throwableclass E():
def __init__(self):
pass
def executeScript(self,session, context, log, REL_SUCCESS, REL_FAILURE):
flowFile = session.get()
if (flowFile != None):
flowFile = session.putAttribute(flowFile, 'myAttr', 'myValue')
session.transfer(flowFile, REL_SUCCESS)
#end classclass JythonProcessor(Processor):
REL_SUCCESS = Relationship.Builder().name("success").description('FlowFiles
that were successfully processed are routed here').build()
REL_FAILURE = Relationship.Builder().name("failure").description('FlowFiles
that were not successfully processed are routed here').build()
log = None
e = E()
def initialize(self,context):
self.log = context.logger
def getRelationships(self):
return set([self.REL_SUCCESS, self.REL_FAILURE])
def validate(self,context):
pass
def onPropertyModified(self,descriptor, oldValue, newValue):
pass
def getPropertyDescriptors(self):
return []
def getIdentifier(self):
return None
def onTrigger(self,context, sessionFactory):
session = sessionFactory.createSession()
try:
self.e.executeScript(session, context, self.log, self.REL_SUCCESS,
self.REL_FAILURE)
session.commit()
except Throwable, t:
self.log.error('{} failed to process due to {}; rolling back
session', [self, t])
session.rollback(true)
raise t
#end classprocessor = JythonProcessor()
{code}
The logs :
{noformat}
2021-04-28 14:03:06,438 INFO [NiFi Web Server-93413]
o.a.nifi.groups.StandardProcessGroup
InvokeScriptedProcessor[id=46a64d6b-e64b-1f50-ffff-ffffc26b9411] added to
StandardProcessGroup[identifier=46a63780-e64b-1f50-ffff-ffffe1229048,name=TEST_ISP]
2021-04-28 14:03:43,335 INFO [NiFi Web Server-93416]
o.a.n.c.s.StandardProcessScheduler Starting
InvokeScriptedProcessor[id=46a64d6b-e64b-1f50-ffff-ffffc26b9411] 2021-04-28
14:03:43,335 INFO [NiFi Web Server-93416]
o.a.n.controller.StandardProcessorNode Starting
InvokeScriptedProcessor[id=46a64d6b-e64b-1f50-ffff-ffffc26b9411] 2021-04-28
14:03:43,336 INFO [Timer-Driven Process Thread-1]
o.a.n.c.s.TimerDrivenSchedulingAgent Scheduled
InvokeScriptedProcessor[id=46a64d6b-e64b-1f50-ffff-ffffc26b9411] to run with 1
threads 021-04-28 14:04:03,432 INFO [NiFi Web Server-91830]
o.a.n.c.s.StandardProcessScheduler Stopping
InvokeScriptedProcessor[id=46a64d6b-e64b-1f50-ffff-ffffc26b9411] 2021-04-28
14:04:03,432 INFO [NiFi Web Server-91830]
o.a.n.controller.StandardProcessorNode Stopping processor:
InvokeScriptedProcessor[id=46a64d6b-e64b-1f50-ffff-ffffc26b9411] 2021-04-28
14:04:03,432 INFO [Timer-Driven Process Thread-4]
o.a.n.c.s.TimerDrivenSchedulingAgent Stopped scheduling
InvokeScriptedProcessor[id=46a64d6b-e64b-1f50-ffff-ffffc26b9411] to run
021-04-28 14:04:03,432 INFO [NiFi Web Server-91830]
o.a.n.c.s.StandardProcessScheduler Stopping
InvokeScriptedProcessor[id=46a64d6b-e64b-1f50-ffff-ffffc26b9411] 2021-04-28
14:04:03,432 INFO [NiFi Web Server-91830]
o.a.n.controller.StandardProcessorNode Stopping processor:
InvokeScriptedProcessor[id=46a64d6b-e64b-1f50-ffff-ffffc26b9411] 2021-04-28
14:04:03,432 INFO [Timer-Driven Process Thread-4]
o.a.n.c.s.TimerDrivenSchedulingAgent Stopped scheduling
InvokeScriptedProcessor[id=46a64d6b-e64b-1f50-ffff-ffffc26b9411] to run
2021-04-28 14:04:06,412 ERROR [Validate Components Thread-5]
o.a.n.p.script.InvokeScriptedProcessor
InvokeScriptedProcessor[id=46a64d6b-e64b-1f50-ffff-ffffc26b9411] Unable to load
script: No processor was defined by the script.: javax.script.ScriptException:
No processor was defined by the script. javax.script.ScriptException: No
processor was defined by the script. at
org.apache.nifi.processors.script.InvokeScriptedProcessor.reloadScript(InvokeScriptedProcessor.java:421)
at
org.apache.nifi.processors.script.InvokeScriptedProcessor.reloadScriptBody(InvokeScriptedProcessor.java:310)
at
org.apache.nifi.processors.script.InvokeScriptedProcessor.setup(InvokeScriptedProcessor.java:230)
at
org.apache.nifi.processors.script.InvokeScriptedProcessor.customValidate(InvokeScriptedProcessor.java:479)
at
org.apache.nifi.components.AbstractConfigurableComponent.validate(AbstractConfigurableComponent.java:145)
at
org.apache.nifi.controller.AbstractComponentNode.computeValidationErrors(AbstractComponentNode.java:609)
at
org.apache.nifi.controller.StandardProcessorNode.computeValidationErrors(StandardProcessorNode.java:1054)
at
org.apache.nifi.controller.AbstractComponentNode.performValidation(AbstractComponentNode.java:576)
at
org.apache.nifi.controller.AbstractComponentNode.performValidation(AbstractComponentNode.java:590)
at
org.apache.nifi.components.validation.StandardValidationTrigger.trigger(StandardValidationTrigger.java:52)
at
org.apache.nifi.components.validation.TriggerValidationTask.run(TriggerValidationTask.java:50)
at org.apache.nifi.engine.FlowEngine$2.run(FlowEngine.java:110)
at
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
at
java.base/java.util.concurrent.FutureTask.runAndReset(FutureTask.java:305)
at
java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:305)
at
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
at java.base/java.lang.Thread.run(Thread.java:834) {noformat}
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