I upgraded my Nifi from 1.21 to 1.22 using brew once upgraded all my flows are removed

[#1]

Hello, @MattWho I upgraded my local Nifi instance from 1.21 to 1.22 using brew once its upgraded all my flows/processor groups were removed and I tried to recover by coping the flow.xml.gz  from the archive the config folder but still I'm not able to get my flows is there any other way that I can get my flows back into the new instance?

Thanks

Vas

[#2 · Accepted solution]

@Vasu_ While NiFi still generates a flow.xml.gz, it is no longer the file that is loaded during NiFi startup.  If the flow.json.gz file exists, that is what is going to be loaded.  So if you swap out only the flow.xml.gz with a flow.xml.gz from archive and do not remove the flow.json.gz, the flow.json.gz is still going to be loaded.

When only the flow.xml.gz exists, NiFi will load it and convert it to a flow.json.gz which it will use from that point forward.  At this time, NiFi will still output both a flow.json.gs and flow.xml.gz as you make changes to the canvas in the NiFi UI.  Eventually the flow.xml.gz will go away completely.

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Thank you,

Matt

[#3]

Hello @MattWho, 

I tried the option you provided, and I had no luck recovering the pipelines. As this is my local instance I restored from the templates I have. thanks for your reply.

Regards,

Vas