ASF GitHub Bot commented on NIFI-5076:

Github user ijokarumawak commented on the issue:

    In order to try the new 'export-flow-snapshots' command, you need to 
checkout [NiFi Registry PR 
112](https://github.com/apache/nifi-registry/pull/112) which is under review 
phase for [NIFIREG-162](https://issues.apache.org/jira/browse/NIFIREG-162).

> Add a command to NiFi CLI to expose all Flow snapshots using 
> PersistenceProvider
> --------------------------------------------------------------------------------
>                 Key: NIFI-5076
>                 URL: https://issues.apache.org/jira/browse/NIFI-5076
>             Project: Apache NiFi
>          Issue Type: Improvement
>          Components: Tools and Build
>            Reporter: Koji Kawamura
>            Assignee: Koji Kawamura
>            Priority: Major
> In NiFi Registry project, there is an improvement to add new 
> FlowPersistenceProvider which can utilize Git technology.
> We need to provide a tool to migrate existing Flow snapshots those are 
> persisted with the FileSystemFlowPersistenceProvider, so that users can 
> switch from that to new Git persistence provider, or vise versa.
> A possible approach is taking a providers.xml file and a URL of running NiFi 
> Registry with a FlowPersistenceProvider which is currently used, then extract 
> all Flow snapshots then persist those with the new PersistenceProvider. This 
> way, existing Flow snapshots can be extracted into the new 
> PersistenceProvider storage. After that, NiFi Registry can be configured to 
> use new provider with existing Flow snapshots.

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