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https://issues.apache.org/jira/browse/NIFI-5456?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16593954#comment-16593954
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ASF GitHub Bot commented on NIFI-5456:
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Github user ottobackwards commented on the issue:

    https://github.com/apache/nifi/pull/2968
  
    I tested to make sure it didn't regress normal working with the Web Api 
Gateway processor, but that processor doesn't modify the endpoint post client 
creation anyway.  Works fine, no regression from this, as expected.
    
    I'm afraid I don't have a setup for testing the rest :(
    



> PutKinesisStream - Fails to work with AWS Private Link endpoint
> ---------------------------------------------------------------
>
>                 Key: NIFI-5456
>                 URL: https://issues.apache.org/jira/browse/NIFI-5456
>             Project: Apache NiFi
>          Issue Type: Bug
>    Affects Versions: 1.6.0, 1.7.1
>         Environment: RedHat 6
>            Reporter: Ariel Godinez
>            Assignee: Sivaprasanna Sethuraman
>            Priority: Major
>              Labels: easyfix
>         Attachments: 
> 0001-NIFI-5456-AWS-clients-now-work-with-private-link-end.patch
>
>
> NiFi version: 1.6.0
> PutKinesisStream fails to put due to invalid signing information when using 
> an AWS Private Link as the endpoint override URL. The endpoint override URL 
> pattern for private links is like below along with the error that NiFi 
> outputs when we attempt to use this type of URL as the 'Endpoint Override 
> URL' property value.
> Endpoint Override URL: 
> [https://vpce-|https://vpce-/]<AWS_GENERATED_ALPHA_NUMERIC>.kinesis.us-east-2.vpce.amazonaws.com
> ERROR [Timer-Driven Process Thread-11] "o.a.n.p.a.k.stream.PutKinesisStream" 
> PutKinesisStream[id=4c314e25-0164-1000-ffff-ffff9bd79c77] Failed to publish 
> due to exception com.amazonaws.services.kinesis.model.AmazonKinesisException: 
> Credential should be scoped to a valid region, not 'vpce'.  (Service: 
> AmazonKinesis; Status Code: 400; Error Code: InvalidSignatureException; 
> Request ID: 6330b83c-a64e-4acf-b892-a505621cf78e) flowfiles 
> [StandardFlowFileRecord[uuid=ba299cec-7cbf-4750-a766-c348b5cd9c73,claim=StandardContentClaim
>  [resourceClaim=StandardResourceClaim[id=1532469012962-1, 
> container=content002, section=1], offset=2159750, 
> length=534625],offset=0,name=900966573101260,size=534625]]
>  
> It looks like 'vpce' is being extracted from the url as the region name when 
> it should be getting 'us-east-2'. We were able to get this processor to work 
> correctly by explicitly passing in the region and service using 
> 'setEndpoint(String endpoint, String serviceName, String regionId)' instead 
> of 'setEndpoint(String endpoint)' in 
> 'nifi/nifi-nar-bundles/nifi-aws-bundle/nifi-aws-abstract-processors/src/main/java/org/apache/nifi/processors/aws/AbstractAWSProcessor.java'
>  line 289



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