Hello Isha,

What is the process to upgraded from 1.28 to 2.6 ?
I don’t find the method, I have configured nifi cluster with 3 nodes and have authentication base on certificate tls with users declare in conf/authorizers.xml. 

Thanks for help

sur 24/03/2026 le 16:48, Isha Lamboo via users écrivit:

De: "Isha Lamboo via users" <[email protected]>
Date: 24 mars 2026
à: "[email protected]" <[email protected]>
Cc: "Isha Lamboo" <[email protected]>
Objet: RE: Upgrade from 1.28...

Hi Vijay,

 

We’ve upgraded directly from 1.28.1 to 2.6. It worked, but at first the server wouldn’t start correctly. We had to mess around with some renamed controller services and nar bundles (for example using DistributedMapCacheClient/Server to MapCacheClient/Server).

According to Jira, those breaking changes happened in 2.0.0 already (https://issues.apache.org/jira/browse/NIFI-13596) so I don’t think you’d have a smoother upgrade by going to 2.0.0 first.

Btw, 2.7 was unusable to us because of memory leaks in the DBCP connection pools. We went for 2.6 instead, but it should be fixed in 2.8

https://issues.apache.org/jira/browse/NIFI-15372

 

Kind regards,

 

Isha

 

From: Vijay Chhipa <[email protected]>
Sent: Tuesday, 24 March 2026 13:50
To: [email protected]
Cc: Jakobsson Stefan <[email protected]>; Jim Halfpenny <[email protected]>
Subject: Re: Upgrade from 1.28...

 

 

One more question for migration, do I HAVE to migrate to 2.0 first and then to 2.7.2 ? 

Thanks

 

 



On Mar 24, 2026, at 03:45, Jim Halfpenny via users <[email protected]> wrote:

 

Hi Stefan,

Once you’ve upgraded to 2.0 you should be able to upgrade directly to 2.7.2. There are some changes and deprecated features you should be aware of, you can find more information in the NiFi release notes: 

 

 

Kind regards,

Jim



On 24 Mar 2026, at 08:24, Jakobsson Stefan via users <[email protected]> wrote:

 

Hello Group,

We are looking into upgrading from 1.28, and I know that I need to go from 1.28 to 2.0, but if we want to go on from there, can we go for instance from 2.0 directly to 2.7.2? Or do we need to “stage” the upgrades more?

 

Stefan Jakobsson

Systems Manager  |  Scania IT, IKCA |  Scania CV AB

Phone: +46 8 553 527 27 Mobile: +46 7 008 834 76

Forskargatan 20, SE-151 87 Södertälje, Sweden

 

 

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