Gordeev Artem created NIFI-7728:
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Summary: FetchS3Object gets stuck with Key cannot be empty
Key: NIFI-7728
URL: https://issues.apache.org/jira/browse/NIFI-7728
Project: Apache NiFi
Issue Type: Bug
Components: Core Framework
Affects Versions: 1.11.4
Reporter: Gordeev Artem
Attachments: 2020-08-11_17-21-52.png, 2020-08-11_17-23-51.png
When setting property *Object Key* of *FetchS3Object* in flow file attribute
expression language and it evaluates as empty string (or null) processor throws
*IllegalArgumentException: Key cannot be empty*. FlowFiles gets stuck and
penalized infinitely.
FlowFiles must transfer into *failure* relation in that case.
!2020-08-11_17-21-52.png|width=1467,height=488!
!2020-08-11_17-23-51.png|width=569,height=399!
{noformat}
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at org.apache.nifi.engine.FlowEngine$2.run(FlowEngine.java:110)
at
org.apache.nifi.controller.tasks.ConnectableTask.invoke(ConnectableTask.java:213)
at
org.apache.nifi.controller.StandardProcessorNode.onTrigger(StandardProcessorNode.java:1176)
at
org.apache.nifi.processors.aws.s3.FetchS3Object.onTrigger(FetchS3Object.java:159)
at com.amazonaws.services.s3.AmazonS3Client.getObject(AmazonS3Client.java:1436)
at
com.amazonaws.util.ValidationUtils.assertStringNotEmpty(ValidationUtils.java:89)
java.lang.IllegalArgumentException: Key cannot be empty
apache-nifi-1 log: 2020-08-11 13:24:26,943 ERROR [Timer-Driven Process
Thread-10] o.a.nifi.processors.aws.s3.FetchS3Object
FetchS3Object[id=50445e3e-d1a8-1269-0000-0000227b631b]
FetchS3Object[id=50445e3e-d1a8-1269-0000-0000227b631b] failed to process
session due to java.l{noformat}
Maybe should add _*| IllegalArgumentException*_ at line
[https://github.com/apache/nifi/blob/master/nifi-nar-bundles/nifi-aws-bundle/nifi-aws-processors/src/main/java/org/apache/nifi/processors/aws/s3/FetchS3Object.java#L209]
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