[jira] [Commented] (NIFI-5076) Add a command to NiFi CLI to expose all Flow snapshots using PersistenceProvider

["ASF GitHub Bot (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/NIFI-5076?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16435484#comment-16435484 ] 

ASF GitHub Bot commented on NIFI-5076:
--------------------------------------

GitHub user ijokarumawak opened a pull request:

    https://github.com/apache/nifi/pull/2631

    NIFI-5076: Add ExportFlowSnapshots NiFi CLI command

    The command can be used to migrate Flow snapshots between
    FlowPersistenceProviders.
    
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You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/ijokarumawak/nifi nifi-5076

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/nifi/pull/2631.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #2631
    
----
commit 65d8da08211f2fc14a81b9951f68fb84cdefe77b
Author: Koji Kawamura <ij...@...>
Date:   2018-04-12T02:09:05Z

    NIFI-5076: Add ExportFlowSnapshots NiFi CLI command
    
    The command can be used to migrate Flow snapshots between
    FlowPersistenceProviders.

----


> 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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