Dennis Kliche created NIFI-7998:
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Summary: Parquet file reader service throws Nullpointer Exception
Key: NIFI-7998
URL: https://issues.apache.org/jira/browse/NIFI-7998
Project: Apache NiFi
Issue Type: Bug
Affects Versions: 1.12.1
Environment: Docker build on Kubernetes
Reporter: Dennis Kliche
Attachments: Jira_Parquet_Error.json,
image-2020-11-11-22-33-31-019.png, image-2020-11-11-22-41-13-099.png,
image-2020-11-11-22-41-44-188.png
We have a pipeline that gets an parquet file and write it into a database via
PutDatabase Record. The content of the flow file is a parquet file. If the flow
file is processed we are getting a NullPointerException.
!image-2020-11-11-22-33-31-019.png!
After some tests I found out, that the processor works like expected but if the
flowfile is a parquet file and the reader is a parquet reader it throws this
error.
To confirm that is has to do with the parquet reader, I used a very simple
approach.
Generate flowfile with JSON transform it to parquet and then back to JSON. This
resulted in the same error message.
In the attached Jira_Parquet_Error.json you can see my simple construction.
Here you can see the settings of the parquet writer:
!image-2020-11-11-22-41-13-099.png!
Here you can see the settings of Parquet Reader
!image-2020-11-11-22-41-44-188.png!
Until update from 1.11.4 to 1.12.1 it worked. Since 1.12.1 we are getting this
issue.
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