Github user ijokarumawak commented on the issue:
https://github.com/apache/nifi/pull/3199
Example log output:
```
2018-12-05 10:22:57,822 DEBUG [List FlowFiles for Connection
7bf5b85d-0167-1000-0fd3-42a798bbbb72] o.a.n.c.queue.AbstractFlowFileQueue
org.apache.nifi.controller.queue.AbstractFlowFileQueue$1@4e4dd5ce Finished
listing FlowFiles for active queue with a total of 100 results out of 1000
FlowFiles
```---
