ChrisSamo632 commented on a change in pull request #5195:
URL: https://github.com/apache/nifi/pull/5195#discussion_r663966104



##########
File path: 
nifi-nar-bundles/nifi-framework-bundle/nifi-framework/nifi-resources/src/main/resources/conf/bootstrap.conf
##########
@@ -105,3 +105,10 @@ notification.max.attempts=5
 # The first curator connection issue is logged as ERROR, for example when NiFi 
cannot connect to one of the Zookeeper nodes.
 # Additional connection issues are logged as DEBUG until the connection is 
restored.
 
java.arg.curator.supress.excessive.logs=-Dcurator-log-only-first-connection-issue-as-error-level=true
+
+# Diagnostics
+nifi.diag.allowed=true

Review comment:
       Creating diagnostics for everyone by default seems the wrong change to 
make - I'd default this to `false` otherwise existing installations will 
suddenly find their filesystems filling up with unexpected files whenever their 
NiFi instance restarts (the default settings also allow *many* files to be 
retained, so I could easily see people getting a bit confused/frustrated with 
the fact that diagnostics files are filling up their filesystems)
   
   If this is left as `true` I'd greatly reduce the default `max` retention 
settings (e.g. keep up to the last 2 or 10 files)




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