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https://issues.apache.org/jira/browse/NIFI-11621?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Mark Payne updated NIFI-11621:
------------------------------
Status: Patch Available (was: Open)
> Inferring schema for JSON fails when there's a CHOICE of different ARRAY types
> ------------------------------------------------------------------------------
>
> Key: NIFI-11621
> URL: https://issues.apache.org/jira/browse/NIFI-11621
> Project: Apache NiFi
> Issue Type: Bug
> Components: Extensions
> Reporter: Mark Payne
> Assignee: Mark Payne
> Priority: Major
> Fix For: 1.latest, 2.latest
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> From Apache Slack:
> https://apachenifi.slack.com/archives/C0L9VCD47/p1685553667778359?thread_ts=1685461745.470939&cid=C0L9VCD47
> When using ConvertRecord with a JSON Reader and an Avro Writer, when
> inferring the JSON schema, each of the following two records works properly:
> {code}
> {"test_record":{"array_test_record":{"test_array":[]}}}
> {code}
> {code}
> {"test_record":{"array_test_record":{"test_array":["test"]}}}
> {code}
> However, when combined into a single FlowFile:
> {code}
> {"test_record":{"array_test_record":{"test_array":[]}}}
> {"test_record":{"array_test_record":{"test_array":["test"]}}}
> {code}
> It fails with a NullPointerException:
> {code}
> 2023-05-31 13:51:35,632 ERROR [Timer-Driven Process Thread-8]
> o.a.n.processors.standard.ConvertRecord
> ConvertRecord[id=72e564dc-0188-1000-360a-9f86b50ec8ac] Failed to process
> StandardFlowFileRecord[uuid=9bf4f0fb-0942-48ba-8a16-0dbd98db3f97,claim=StandardContentClaim
> [resourceClaim=StandardResourceClaim[id=1685554864966-1, container=default,
> section=1], offset=3278,
> length=117],offset=0,name=9bf4f0fb-0942-48ba-8a16-0dbd98db3f97,size=117];
> will route to failure
> org.apache.nifi.processor.exception.ProcessException: Could not determine the
> Avro Schema to use for writing the content
> at
> org.apache.nifi.avro.AvroRecordSetWriter.createWriter(AvroRecordSetWriter.java:154)
> at
> java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at
> java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.base/java.lang.reflect.Method.invoke(Method.java:566)
> at
> org.apache.nifi.controller.service.StandardControllerServiceInvocationHandler.invoke(StandardControllerServiceInvocationHandler.java:254)
> at
> org.apache.nifi.controller.service.StandardControllerServiceInvocationHandler.invoke(StandardControllerServiceInvocationHandler.java:105)
> at com.sun.proxy.$Proxy177.createWriter(Unknown Source)
> at
> org.apache.nifi.processors.standard.AbstractRecordProcessor$1.process(AbstractRecordProcessor.java:150)
> at
> org.apache.nifi.controller.repository.StandardProcessSession.write(StandardProcessSession.java:3441)
> at
> org.apache.nifi.processors.standard.AbstractRecordProcessor.onTrigger(AbstractRecordProcessor.java:122)
> at
> org.apache.nifi.processor.AbstractProcessor.onTrigger(AbstractProcessor.java:27)
> at
> org.apache.nifi.controller.StandardProcessorNode.onTrigger(StandardProcessorNode.java:1360)
> at
> org.apache.nifi.controller.tasks.ConnectableTask.invoke(ConnectableTask.java:243)
> at
> org.apache.nifi.controller.scheduling.TimerDrivenSchedulingAgent$1.run(TimerDrivenSchedulingAgent.java:102)
> 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:829)
> Caused by: org.apache.nifi.schema.access.SchemaNotFoundException: Failed to
> compile Avro Schema
> at
> org.apache.nifi.avro.AvroRecordSetWriter.createWriter(AvroRecordSetWriter.java:145)
> ... 21 common frames omitted
> Caused by: java.lang.NullPointerException: null
> at
> org.apache.nifi.avro.AvroTypeUtil.buildAvroSchema(AvroTypeUtil.java:208)
> at
> org.apache.nifi.avro.AvroTypeUtil.buildAvroField(AvroTypeUtil.java:130)
> at
> org.apache.nifi.avro.AvroTypeUtil.buildAvroSchema(AvroTypeUtil.java:284)
> at
> org.apache.nifi.avro.AvroTypeUtil.buildAvroSchema(AvroTypeUtil.java:241)
> at
> org.apache.nifi.avro.AvroTypeUtil.buildAvroField(AvroTypeUtil.java:130)
> at
> org.apache.nifi.avro.AvroTypeUtil.buildAvroSchema(AvroTypeUtil.java:284)
> at
> org.apache.nifi.avro.AvroTypeUtil.buildAvroField(AvroTypeUtil.java:130)
> at
> org.apache.nifi.avro.AvroTypeUtil.buildAvroSchema(AvroTypeUtil.java:122)
> at
> org.apache.nifi.avro.AvroTypeUtil.extractAvroSchema(AvroTypeUtil.java:102)
> at
> org.apache.nifi.avro.AvroRecordSetWriter.createWriter(AvroRecordSetWriter.java:142)
> ... 21 common frames omitted
> {code}
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