Jean-Sebastien, Are you running a cluster or a single, stand-alone nifi instance? The slowness could be either on the backend (performing the action and formulating the response to the UI) or on the UI end, where it has to render everything.
One thing you can do to help understand which is causing the slowness is to create a new, empty process group and then step into it. Is the UI still sluggish when you’re in that process group, or is the UI faster there? Also, which browser are you using? Thanks -Mark Sent from my iPhone On Sep 3, 2021, at 1:03 PM, Jean-Sebastien Vachon <jsvac...@brizodata.com> wrote: Hi all, The UI has been slowing down considerably over the last few days/weeks. I tried restarting Nifi but it does not really make any difference. I tuned the JVM and there is no sign of heavy GC going on. What other things should I investigate? There is currently around 4.2 MB of data in all my flows... so not much going on and it is still slow. My server as 128 CPUs and 512GB of Ram of which 15 are allocated to Nifi. I do have other processes running but nothing to cause any slowdown. The load on the server is around 25 and is 98.5% idle. There is nothing going on regarding storage as well. Thanks Jean-Sébastien Vachon Co-Founder & Architect Brizo Data, Inc. www.brizodata.com<https://outlook.office365.com/mail/options/mail/messageContent/www.brizodata.com>
