[NIFI-1622] Not using appropriate NAR class loader when calling Processor Lifecycle methods

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.6.0
• Fix Version/s: 0.6.0
• Component/s: Core Framework
• Assignee: Mark Payne
• Reporter: Mark Payne
• Created: 11/Mar/16 19:39
• Updated: 28/Jun/16 19:52
• Resolved: 13/Mar/16 01:44

Description

Since NIFI-1464 was merged to master, I have seen problems starting the PutKafka processor. It appears that the NAR ClassLoader was not being properly applied, per the stack trace:

2016-03-11 14:22:53,967 ERROR [pool-25-thread-5] o.a.n.controller.StandardProcessorNode Failed to invoke @OnScheduled method due to java.lang.RuntimeException: Failed while executing one of processor's lifecycle tasks (OnScheduled or OnUnscheduled).
java.lang.RuntimeException: Failed while executing one of processor's lifecycle tasks (OnScheduled or OnUnscheduled).
at org.apache.nifi.controller.StandardProcessorNode.invokeTaskAsCancelableFuture(StandardProcessorNode.java:1398) ~[nifi-framework-core-0.6.0-SNAPSHOT.jar:0.6.0-SNAPSHOT]
at org.apache.nifi.controller.StandardProcessorNode.access$100(StandardProcessorNode.java:91) ~[nifi-framework-core-0.6.0-SNAPSHOT.jar:0.6.0-SNAPSHOT]
at org.apache.nifi.controller.StandardProcessorNode$1.run(StandardProcessorNode.java:1246) ~[nifi-framework-core-0.6.0-SNAPSHOT.jar:0.6.0-SNAPSHOT]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [na:1.8.0_60]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) [na:1.8.0_60]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180) [na:1.8.0_60]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293) [na:1.8.0_60]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_60]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_60]
at java.lang.Thread.run(Thread.java:745) [na:1.8.0_60]
Caused by: java.util.concurrent.ExecutionException: java.lang.reflect.InvocationTargetException
at java.util.concurrent.FutureTask.report(FutureTask.java:122) [na:1.8.0_60]
at java.util.concurrent.FutureTask.get(FutureTask.java:206) [na:1.8.0_60]
at org.apache.nifi.controller.StandardProcessorNode.invokeTaskAsCancelableFuture(StandardProcessorNode.java:1383) ~[nifi-framework-core-0.6.0-SNAPSHOT.jar:0.6.0-SNAPSHOT]
... 9 common frames omitted
Caused by: java.lang.reflect.InvocationTargetException: null
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_60]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_60]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_60]
at java.lang.reflect.Method.invoke(Method.java:497) ~[na:1.8.0_60]
at org.apache.nifi.util.ReflectionUtils.invokeMethodsWithAnnotations(ReflectionUtils.java:137) ~[nifi-framework-core-0.6.0-SNAPSHOT.jar:0.6.0-SNAPSHOT]
at org.apache.nifi.util.ReflectionUtils.invokeMethodsWithAnnotations(ReflectionUtils.java:125) ~[nifi-framework-core-0.6.0-SNAPSHOT.jar:0.6.0-SNAPSHOT]
at org.apache.nifi.util.ReflectionUtils.invokeMethodsWithAnnotations(ReflectionUtils.java:70) ~[nifi-framework-core-0.6.0-SNAPSHOT.jar:0.6.0-SNAPSHOT]
at org.apache.nifi.controller.StandardProcessorNode$1$1.call(StandardProcessorNode.java:1250) ~[nifi-framework-core-0.6.0-SNAPSHOT.jar:0.6.0-SNAPSHOT]
at org.apache.nifi.controller.StandardProcessorNode$1$1.call(StandardProcessorNode.java:1246) ~[nifi-framework-core-0.6.0-SNAPSHOT.jar:0.6.0-SNAPSHOT]
... 6 common frames omitted
Caused by: java.lang.ExceptionInInitializerError: null
at org.apache.kafka.clients.producer.KafkaProducer.<init>(KafkaProducer.java:194) ~[na:na]
at org.apache.nifi.processors.kafka.PutKafka.createProducer(PutKafka.java:323) ~[na:na]
... 15 common frames omitted
Caused by: org.apache.kafka.common.config.ConfigException: Invalid value org.apache.kafka.clients.producer.internals.DefaultPartitioner for configuration partitioner.class: Class org.apache.kafka.clients.producer.internals.DefaultPartitioner could not be found.
at org.apache.kafka.common.config.ConfigDef.parseType(ConfigDef.java:255) ~[na:na]
at org.apache.kafka.common.config.ConfigDef.define(ConfigDef.java:78) ~[na:na]
at org.apache.kafka.common.config.ConfigDef.define(ConfigDef.java:94) ~[na:na]
at org.apache.kafka.clients.producer.ProducerConfig.<clinit>(ProducerConfig.java:206) ~[na:na]
... 17 common frames omitted