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On 3/7/2017 3:12 AM, Belmiro Moreira wrote:
> Hi Saverio,
> when not using "max_count" the message "Running batches of 50 until
> complete" is always printed.
> If you are not getting any error and no more output the migrations
> should have finished.
>
> Unfortunately, there is not such message "All Done" when
> the online_data_migrations finish.
>
> You can check manually if everything was correctly migrated, looking
> into the DB.
> These methods are triggered by the "online_data_migrations":
>         db.pcidevice_online_data_migration
>         db.computenode_uuids_online_data_migration
>         db.aggregate_uuids_online_data_migration
>
> cheers,
>
> Belmiro
> CERN
>
> On Tue, Mar 7, 2017 at 8:34 AM, Saverio Proto <zioproto at gmail.com
> <mailto:zioproto at gmail.com>> wrote:
>
>     Hello there,
>
>     before doing the upgrade, when still in Mitaka (tag 13.1.3), I am
>     running the folllwing command:
>
>     nova-manage db online_data_migrations
>
>     I get this output:
>
>     Option "verbose" from group "DEFAULT" is deprecated for removal.  Its
>     value may be silently ignored in the future.
>     Option "notification_topics" from group "DEFAULT" is deprecated. Use
>     option "topics" from group "oslo_messaging_notifications".
>     Running batches of 50 until complete
>
>     I always get the same output.
>      I also tried :
>     nova-manage db online_data_migrations --max-count 5000
>
>     In this case I only get the warnings about the option without 'Running
>     batches of 50 until complete'.
>
>     When I do not use max-count I will always get 'Running batches of 50
>     until complete'.
>
>     How do I understand when all the online_data_migrations are done ?
>
>     I never get anything printed like 'all done'.
>
>     thank you
>
>     Saverio
>
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>
>
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Also, the command exits with 1 if anything was migrated and 0 if nothing 
was migrated, meaning it's done.

We could use a man page for this command and it's usage, I'll open a bug 
in nova for that.

Thanks for the feedback and questions on usage. Without questions like 
this we don't know what issues people are having with the tools we provide.

-- 

Thanks,

Matt Riedemann