Github user mattyb149 commented on the issue:
https://github.com/apache/nifi/pull/2175
If you need to raise the logging level, you can add that processor to
logback.xml with a setting of INFO, otherwise you can change all processors to
INFO with the following sed statement (works on Mac, don't need the parameter
after -i if not on Mac):
`sed -i '' "s/\"org.apache.nifi.processors\"
level=\"WARN\"/\"org.apache.nifi.processors\" level=\"INFO\"/" conf/logback.xml`---
