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Posted to issues@nifi.apache.org by GitBox <gi...@apache.org> on 2020/10/22 17:26:03 UTC
[GitHub] [nifi-minifi-cpp] szaszm edited a comment on pull request #900: MINIFICPP-1350 - Explicit serializer for MergeContent
szaszm edited a comment on pull request #900:
URL: https://github.com/apache/nifi-minifi-cpp/pull/900#issuecomment-714642657
I did some pre-merge manual testing of FFv3. For a while everything worked fine and just as I removed the GenerateFlowFile -> MergeContent connection, NiFi started spewing out these exceptions:
```
2020-10-22 19:16:28,318 ERROR [Timer-Driven Process Thread-6] o.a.n.processors.standard.UnpackContent UnpackContent[id=514003df-0175-1000-9df2-b9696fdbaa96] Unable to unpack StandardFlowFileRecord
[uuid=6803473c-2f9c-443f-900a-1f58f8721af2,claim=,offset=0,name=1603386311828679904,size=0] due to org.apache.nifi.processor.exception.ProcessException: IOException thrown from UnpackContent[id=51
4003df-0175-1000-9df2-b9696fdbaa96]: java.io.IOException: Not in FlowFile-v3 format; routing to failure: org.apache.nifi.processor.exception.ProcessException: IOException thrown from UnpackContent
[id=514003df-0175-1000-9df2-b9696fdbaa96]: java.io.IOException: Not in FlowFile-v3 format
org.apache.nifi.processor.exception.ProcessException: IOException thrown from UnpackContent[id=514003df-0175-1000-9df2-b9696fdbaa96]: java.io.IOException: Not in FlowFile-v3 format
at org.apache.nifi.controller.repository.StandardProcessSession.write(StandardProcessSession.java:2770)
at org.apache.nifi.processors.standard.UnpackContent$FlowFileStreamUnpacker$1.process(UnpackContent.java:441)
[...]
```
Apparently 0 sized flow files with the mime.type of `application/flowfile-v3` appeared in NiFi after I stopped feeding flow files to MiNiFi C++ MergeContent.
If this is expected, then fine, otherwise could you check it?
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