What causes version of NiFi component to update?

Question

While creating a NiFi flow I'm realizing the versions of the components changing.

I understand that the version changes each time the component updates - but what is considered an update of a component?

For example, what causes an update in a connection's version?

I'm trying to find some pattern but with not much luck.

Thanks in advance!

Answer 1

The official documentation states that you can have multiple versions of your flow at the same time:

You have access to information about the version of your Processors, Controller Services, and Reporting Tasks. This is especially useful when you are working within a clustered environment with multiple NiFi instances running different versions of a component or if you have upgraded to a newer version of a processor.

You can opt-out of versioning all together:

Methods of disable the versioning:

1. NiFi UI: To change the version of a flow, right-click on the versioned process group and select Version→Change version (link).

2. Rest API: Send an http DELETE request to /versions/process-groups/{id} with the appropriate ID.

You can also use Toolkit CLI to view available versions, by executing ./bin/cli.sh registry diff-flow-versions (link).