Eric Detwiler created NIFI-8481:
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             Summary: NIFI should display some warnings/errors when (a) all 
timer driven threads are blocked (b) Content Repository at 100%
                 Key: NIFI-8481
                 URL: https://issues.apache.org/jira/browse/NIFI-8481
             Project: Apache NiFi
          Issue Type: Improvement
          Components: Core UI
    Affects Versions: 1.13.2
            Reporter: Eric Detwiler


We experienced an issue with NIFI where there were

1) No errors/warnings in the log file (however, we did see INFO messages)

2) No Errors on the UI

3) All TimerDriven Threads were occupied (Stack dump revealed they were waiting 
to write to the archive)

4) Files sitting on disk when GetFile should have been processing

Basically NIFI was completely locked up waiting for space in the archive 
content repository to be cleared out.  But was not obvious since disk usage was 
extremely high.



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