Github user YolandaMDavis commented on the issue:
https://github.com/apache/nifi/pull/1686
@alopresto ran tests with the following corner cases:
-flow running with normal shutdown invoked. NiFi shutdown and started
without issue
-flow running with kill -9 on process invoked. NiFi process was terminated
and I was able to start without issue
-flow running and disk exceeded space - I was able to shutdown NiFi clear
out disk problem and start nifi without issue
Also validated that switch between EWAPR and PPR (and vice versa) along
with removal of content, flowfile and provenance repos would prevent
classcastexception seen previously.
+1
will merge shortly
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