Github user jvwing commented on a diff in the pull request: https://github.com/apache/nifi/pull/1126#discussion_r83904288 --- Diff: nifi-nar-bundles/nifi-aws-bundle/nifi-aws-processors/src/main/java/org/apache/nifi/processors/aws/s3/PutS3Object.java --- @@ -551,6 +571,13 @@ public void process(final InputStream rawIn) throws IOException { if (currentState.getUploadId().isEmpty()) { final InitiateMultipartUploadRequest initiateRequest = new InitiateMultipartUploadRequest(bucket, key, objectMetadata); + if (keyId != null) { + if (!context.getProperty(SIGNER_OVERRIDE).getValue().equals("AWSS3V4Signer")) { + getLogger().error("Uploading with AWS:KMS requires S3V4 signature, please enable it"); + return; --- End diff -- Same issue with return routing the flowfile to success.
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