I got rid of the large merges yesterday and switched to a two phase merge. That indeed solved a lot of issues.
But I think I can reproduce the UI hang ..... It seems to always occur after performing an action in the flow where a previous action resulted in an error / warning message : Example : - Attempting to delete a processor that is in the process of shutting down shows an error (popup) - Deleting a processor that has a non-empty queue attached to it results in an error (popup) If you execute a simple refresh on the UI after these messages it will hang. (I can post a video of the crashes if it would help) -- View this message in context: http://apache-nifi-developer-list.39713.n7.nabble.com/UI-can-take-a-very-long-time-to-become-available-tp12201p12267.html Sent from the Apache NiFi Developer List mailing list archive at Nabble.com.
