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[nova] [ops] Problems running db sync for nova (Ocata --> Pike)


AFAIK cell0 is the local cell, isn't it? I'm not sure, maybe someone  
else can shed some light on this.


Zitat von Massimo Sgaravatto <massimo.sgaravatto at gmail.com>:

> Mmm.
> Doesn't "--local_cell" mean that cell0 is not updated ?
> I was already using cell0 in Ocata ...
>
> Cheers, Massimo
>
> On Tue, Jul 16, 2019 at 12:52 PM Eugen Block <eblock at nde.ag> wrote:
>
>> Hi,
>>
>> I think you need to run
>>
>> nova-manage db sync --local_cell
>>
>> in Ocata. I can't quite remember the reason, but you should try it.
>> I had the same problems and this command worked out for me.
>>
>> Regards,
>> Eugen
>>
>>
>>
>> Zitat von Massimo Sgaravatto <massimo.sgaravatto at gmail.com>:
>>
>> > Resending with the right tags in the subject line ...
>> >
>> >
>> > Hi
>> >
>> > We are trying to update our Ocata cloud to Pike  (this is the first step:
>> > we will go through Ocata --> Pike --> Queens --> Rocky) but we have a
>> > problem with nova-manage db sync:
>> >
>> >
>> > [root at cld-ctrl-01 ~]# su -s /bin/sh -c "nova-manage db sync" nova
>> > ERROR: Could not access cell0.
>> > Has the nova_api database been created?
>> > Has the nova_cell0 database been created?
>> > Has "nova-manage api_db sync" been run?
>> > Has "nova-manage cell_v2 map_cell0" been run?
>> > Is [api_database]/connection set in nova.conf?
>> > Is the cell0 database connection URL correct?
>> > Error: "Database schema file with version 390 doesn't exist."
>> >
>> > We have these settings in nova.conf:
>> >
>> > [database]
>> > connection = mysql+pymysql://nova_prod:xyz at 192.168.60.10:6306/nova_prod
>> > [api_database]
>> > connection = mysql+pymysql://
>> > nova_api_prod:xyz at 192.168.60.10:6306/nova_api_prod
>> >
>> > I can't see problems accessing the databases. i.e. these commands work:
>> >
>> > mysql -u nova_api_prod -pxyz -h 192.168.60.10 -P 6306 nova_api_prod
>> >
>> > mysql -u nova_prod -pxyz -h 192.168.60.10 -P 6306 nova_prod
>> >
>> >  mysql -u nova_prod -pxyz -h 192.168.60.10 -P 6306 nova_prod_cell0
>> >
>> > If I try to rerun nova-manage cell_v2 map_cell0:
>> >
>> > [root at cld-ctrl-01 ~]# nova-manage cell_v2 map_cell0
>> > Cell0 is already setup
>> >
>> >
>> > [root at cld-ctrl-01 ~]# su -s /bin/sh -c "nova-manage api_db version" nova
>> > 45
>> >
>> > [root at cld-ctrl-01 ~]# su -s /bin/sh -c "nova-manage db version" nova
>> > 362
>> >
>> > [root at cld-ctrl-01 ~]# nova-manage cell_v2 list_cells
>> >
>> +-------+--------------------------------------+--------------------------------------------------+-------------------------------------------------------------------+
>> > |  Name |                 UUID                 |
>> Transport
>> > URL                   |                        Database Connection
>> >                |
>> >
>> +-------+--------------------------------------+--------------------------------------------------+-------------------------------------------------------------------+
>> > | cell0 | 00000000-0000-0000-0000-000000000000 |
>> > none:///                     | mysql+pymysql://nova_prod:****@
>> > 192.168.60.10:6306/nova_prod_cell0 |
>> > | cell1 | 5e42faa0-710b-4967-bb42-fcf53602c96e |
>> > rabbit://openstack_prod:****@192.168.60.183:5672 |
>> >  mysql+pymysql://nova_prod:****@192.168.60.10:6306/nova_prod    |
>> >
>> +-------+--------------------------------------+--------------------------------------------------+-------------------------------------------------------------------+
>> >
>> > Following some doc we also tried to specify the --database_connection /
>> > --database-connection argument, but this seems not working
>> >
>> >
>> > Setting nova in debug mode, this is the last entry in the nova-manage log
>> > file:
>> >
>> > 2019-07-16 12:11:42.774 22013 DEBUG migrate.versioning.repository
>> > [req-8ca52407-dbe1-4a62-ad6c-16631c2a9a06 - - - - -] Config:
>> > OrderedDict([('db_settings', OrderedDict([('__name__', 'db_settings'),
>> > ('repository_id', 'nova'), ('version_table', 'migrate_version'),
>> > ('required_dbs', '[]')]))]) __init__
>> > /usr/lib/python2.7/site-packages/migrate/versioning/repository.py:83
>> >
>> > Any hints ?
>> >
>> > Thanks, Massimo
>> > 
>> > 
>> > OpenStack Discuss
>>
>>
>>
>>
>>