Hi Johnson, The NiFi documentation is very good so I would always recommend starting there:
https://nifi.apache.org/components/ Components nifi.apache.org I am not familiar with running NiFi on windows, but I did note that the admin guide says you should run nifi.cmd and not run-wifi.bat to start the NiFi server. I see no reason not the use NiFi 2.6, there have been a significant number of improvements and bug fixes over previous releases. Kind regards, Jim > On 28 Nov 2025, at 13:27, Sadhasivam, Johnson > <[email protected]> wrote: > > Hi Jim, > > Thank you for the advice regarding the upgrade path. > > I apologize for the confusion; we have decided to change our approach. We are > now planning a fresh installation of Apache NiFi 2.6 on new servers (dev2, > stage2, and prod2), setting up a three-node cluster in each environment. > > Could you please provide the relevant documentation or the steps we should > follow for a new NiFi 2.6 cluster installation? > > Since we are looking at a major jump, how stable would you rate the latest > NiFi 2.6 release for production use right now? > > Kind regards, > > Johnson > On Tue, Nov 25, 2025 at 2:30 PM Jim Halfpenny <[email protected]> > wrote: >> Hi Johnson, >> Here's some general advice for upgrading your NiFi 1.17 installation. There >> have been a lot of changes since NiFi 1.17 so you won't be able to jump >> straight to the latest version. >> NiFi 1.x is no longer maintained so ideally you want to aim to upgrade to >> NiFi 2. >> Because you are on NiFi 1.17 you would need to upgrade to the latest version >> of NiFi 1 (1.28.0) before you can upgrade to NiFi 2.x. >> The NiFi documentation is good, I would suggest starting there -> >> https://nifi.apache.org/documentation/v1/. The admin guide has some useful >> information on upgrading your NiFi cluster. >> Make sure you back up your NiFi installation before you begin upgrading and >> test the upgrade in a non-production environment before doing this for real. >> There are a lot of features and processors deprecated in NiFi 2, so you will >> need to make sure that you thoroughly test your workflows. >> Kind regards, >> Jim >> >> On Mon, 24 Nov 2025 at 14:47, Sadhasivam, Johnson via dev >> <[email protected] <mailto:[email protected]>> wrote: >>> Hi Team, >>> >>> We are planning to upgrade our current Apache NiFi environment, which is >>> running a three-node cluster on version 1.17.0 (attached screenshot for >>> your reference). >>> >>> Could you please advise on the latest stable version of NiFi that you >>> recommend for this upgrade? >>> >>> Additionally, please share any relevant documentation that includes the >>> installation steps. >>> >>> >>> >>> Thanks, >>> Johnson Sadhasivam
