openstack team mailing list archive

[Gabe Westmaas <gabe.westmaas@xxxxxxxxxxxxx>]

+1 on modifying it in your environment,  this seems outside the scope of
migrations, though perhaps listed as a "best practice" for the deployment
process.

Similarly, I have been trying to decide what makes sense for indexes.
Right now it would be a bad idea to run nova without adding some indexes,
but I'm also not sure if this belongs in migrations, I was also thinking
this belonged in a "best practices" document.  I'm concerned about that
being a part of an upgrade and negatively affecting a deployment that
might have millions of rows in a table that to which a migration adds an
index.  At the same time we have to deal with this when we do other
operations on large tables (adding or removing columns, for example), so
maybe I shouldn't be so concerned about it.  Any thoughts?

Gabe

On 10/11/11 5:15 PM, "Vishvananda Ishaya" <vishvananda@xxxxxxxxx> wrote:

>For some reason tables are getting created as default type.  There is a
>migration in the history to convert tables to InnoDB, but anything
>created after that migration will go in as the default type.  We can add
>another migration to convert all of the other tables, but I think the
>right method here might be to set the default table type in mysql to
>innodb before running nova-manage db sync.
>
>Vish
>
>On Oct 11, 2011, at 1:55 PM, Nick Sokolov wrote:
>
>> Hi stackers!
>> 
>> I noticed, that tables in database use two database engines instead of
>>two, but model descriptions does not override __table_args__ =
>>{'mysql_engine': 'InnoDB'}.
>> This is design decision or migration_repo bug, or something else?
>> 
>> mysql> select table_name, table_type, engine FROM
>>information_schema.tables;
>> +---------------------------------------+-------------+--------+
>> | table_name                            | table_type  | engine |
>> +---------------------------------------+-------------+--------+
>>    .... system tables here ....
>> | agent_builds                          | BASE TABLE  | MyISAM |
>> | auth_tokens                           | BASE TABLE  | InnoDB |
>> | block_device_mapping                  | BASE TABLE  | MyISAM |
>> | certificates                          | BASE TABLE  | InnoDB |
>> | compute_nodes                         | BASE TABLE  | InnoDB |
>> | console_pools                         | BASE TABLE  | InnoDB |
>> | consoles                              | BASE TABLE  | InnoDB |
>> | export_devices                        | BASE TABLE  | InnoDB |
>> | fixed_ips                             | BASE TABLE  | InnoDB |
>> | floating_ips                          | BASE TABLE  | InnoDB |
>> | instance_actions                      | BASE TABLE  | InnoDB |
>> | instance_metadata                     | BASE TABLE  | InnoDB |
>> | instance_type_extra_specs             | BASE TABLE  | MyISAM |
>> | instance_types                        | BASE TABLE  | InnoDB |
>> | instances                             | BASE TABLE  | InnoDB |
>> | iscsi_targets                         | BASE TABLE  | InnoDB |
>> | key_pairs                             | BASE TABLE  | InnoDB |
>> | migrate_version                       | BASE TABLE  | InnoDB |
>> | migrations                            | BASE TABLE  | InnoDB |
>> | networks                              | BASE TABLE  | InnoDB |
>> | projects                              | BASE TABLE  | InnoDB |
>> | provider_fw_rules                     | BASE TABLE  | MyISAM |
>> | quotas                                | BASE TABLE  | InnoDB |
>> | security_group_instance_association   | BASE TABLE  | InnoDB |
>> | security_group_rules                  | BASE TABLE  | InnoDB |
>> | security_groups                       | BASE TABLE  | InnoDB |
>> | services                              | BASE TABLE  | InnoDB |
>> | snapshots                             | BASE TABLE  | InnoDB |
>> | user_project_association              | BASE TABLE  | InnoDB |
>> | user_project_role_association         | BASE TABLE  | InnoDB |
>> | user_role_association                 | BASE TABLE  | InnoDB |
>> | users                                 | BASE TABLE  | InnoDB |
>> | virtual_interfaces                    | BASE TABLE  | InnoDB |
>> | virtual_storage_arrays                | BASE TABLE  | MyISAM |
>> | volume_metadata                       | BASE TABLE  | MyISAM |
>> | volume_type_extra_specs               | BASE TABLE  | MyISAM |
>> | volume_types                          | BASE TABLE  | MyISAM |
>> | volumes                               | BASE TABLE  | InnoDB |
>> | zones                                 | BASE TABLE  | InnoDB |
>> +---------------------------------------+-------------+--------+
>> 
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