NiFi Tutorials

Practitioner notes from production NiFi estates.

Tuning NiFi Back-Pressure and the Provenance Repository

October 6, 2026 · Weirpath

Raising the threshold is rarely the fix. How to read a backed-up queue, set back-pressure deliberately, and size provenance retention to what you actually use.

Planning a NiFi 2 Cutover with a Rehearsed Rollback

September 29, 2026 · Weirpath

Why a parallel NiFi 2 cluster beats an in-place upgrade, how to move flows in groups, and what a rollback you have actually rehearsed looks like.

Rewriting ExecuteScript Components for NiFi 2

September 22, 2026 · Weirpath

NiFi 2 drops several scripting languages from its scripted components. How to decide whether each script becomes Groovy, a Python processor or a small Java processor.

Moving from NiFi XML Templates to Versioned Flows

September 15, 2026 · Weirpath

NiFi 2 drops XML templates. How to get template-managed flows into a registry with a clean history, while you are still on 1.x.

Building a Component Inventory Before a NiFi 2 Upgrade

September 8, 2026 · Weirpath

The upgrade estimate depends on which processors, controller services and scripts your flows actually use. How to build that list from a running 1.x estate.

Tell us which NiFi version you run, roughly how many flows, and what is hurting. The first conversation is with the engineer who would do the work.

Talk to a NiFi engineer