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[glance][neutron] Glance migrations broken for postgresql; impact to Neutron periodic jobs


Hi Nate,

This issue is already reported and I have submitted a patch [1] to resolve
the same.

Kindly confirm this patch resolves your issue.

[1]
https://review.opendev.org/#/c/677694/

Thanks & Best Regards,

Abhishek Kekane


On Wed, Aug 28, 2019 at 12:54 AM Nate Johnston <nate.johnston at redhat.com>
wrote:

> Glance developers,
>
> I am investigating failures with the neutron-tempest-postgres-full
> periodic job
> in Zuul, and it looks like the failing step is actually a database
> migration for
> Glance that occurs during devstack setup.  Pasted below is a representative
> example [1].  You can see the same issue causing failures for this neutron
> periodic job by looking at the Zuul failures [2]; the error is in
> logs/devstacklog.txt.gz.
>
> The last successful job was 2019-08-15T06:07:06; the next one on 2019-08-16
> failed.  But there were no changes merged in glance during that time
> period [3].
> So if you could help debug the source of this issue then we can hopefully
> get
> this job - and probably whatever others depend on postgresql - back
> working.
>
> 2019-08-27 06:35:44.963 | INFO  [alembic.runtime.migration] Running
> upgrade rocky_expand02 -> train_expand01, empty expand for symmetry with
> train_contract01
> 2019-08-27 06:35:44.967 | INFO  [alembic.runtime.migration] Context impl
> PostgresqlImpl.
> 2019-08-27 06:35:44.967 | INFO  [alembic.runtime.migration] Will assume
> transactional DDL.
> 2019-08-27 06:35:44.970 | Upgraded database to: train_expand01, current
> revision(s): train_expand01
> 2019-08-27 06:35:44.971 | INFO  [alembic.runtime.migration] Context impl
> PostgresqlImpl.
> 2019-08-27 06:35:44.971 | INFO  [alembic.runtime.migration] Will assume
> transactional DDL.
> 2019-08-27 06:35:44.975 | INFO  [alembic.runtime.migration] Context impl
> PostgresqlImpl.
> 2019-08-27 06:35:44.975 | INFO  [alembic.runtime.migration] Will assume
> transactional DDL.
> 2019-08-27 06:35:44.995 | CRITI [glance] Unhandled error
> 2019-08-27 06:35:44.996 | Traceback (most recent call last):
> 2019-08-27 06:35:44.996 |   File "/usr/local/bin/glance-manage", line 10,
> in <module>
> 2019-08-27 06:35:44.996 |     sys.exit(main())
> 2019-08-27 06:35:44.996 |   File
> "/opt/stack/new/glance/glance/cmd/manage.py", line 563, in main
> 2019-08-27 06:35:44.996 |     return CONF.command.action_fn()
> 2019-08-27 06:35:44.996 |   File
> "/opt/stack/new/glance/glance/cmd/manage.py", line 395, in sync
> 2019-08-27 06:35:44.996 |
>  self.command_object.sync(CONF.command.version)
> 2019-08-27 06:35:44.996 |   File
> "/opt/stack/new/glance/glance/cmd/manage.py", line 166, in sync
> 2019-08-27 06:35:44.996 |     self.migrate(online_migration=False)
> 2019-08-27 06:35:44.996 |   File
> "/opt/stack/new/glance/glance/cmd/manage.py", line 294, in migrate
> 2019-08-27 06:35:44.996 |     if
> data_migrations.has_pending_migrations(db_api.get_engine()):
> 2019-08-27 06:35:44.996 |   File
> "/opt/stack/new/glance/glance/db/sqlalchemy/alembic_migrations/data_migrations/__init__.py",
> line 61, in has_pending_migrations
> 2019-08-27 06:35:44.997 |     return any([x.has_migrations(engine) for x
> in migrations])
> 2019-08-27 06:35:44.997 |   File
> "/opt/stack/new/glance/glance/db/sqlalchemy/alembic_migrations/data_migrations/train_migrate01_backend_to_store.py",
> line 28, in has_migrations
> 2019-08-27 06:35:44.997 |     metadata_backend = con.execute(sql_query)
> 2019-08-27 06:35:44.997 |   File
> "/usr/local/lib/python2.7/dist-packages/sqlalchemy/engine/base.py", line
> 982, in execute
> 2019-08-27 06:35:44.997 |     return self._execute_text(object_,
> multiparams, params)
> 2019-08-27 06:35:44.997 |   File
> "/usr/local/lib/python2.7/dist-packages/sqlalchemy/engine/base.py", line
> 1155, in _execute_text
> 2019-08-27 06:35:44.997 |     parameters,
> 2019-08-27 06:35:44.997 |   File
> "/usr/local/lib/python2.7/dist-packages/sqlalchemy/engine/base.py", line
> 1248, in _execute_context
> 2019-08-27 06:35:44.997 |     e, statement, parameters, cursor, context
> 2019-08-27 06:35:44.997 |   File
> "/usr/local/lib/python2.7/dist-packages/sqlalchemy/engine/base.py", line
> 1464, in _handle_dbapi_exception
> 2019-08-27 06:35:44.997 |     util.raise_from_cause(newraise, exc_info)
> 2019-08-27 06:35:44.997 |   File
> "/usr/local/lib/python2.7/dist-packages/sqlalchemy/util/compat.py", line
> 398, in raise_from_cause
> 2019-08-27 06:35:44.997 |     reraise(type(exception), exception,
> tb=exc_tb, cause=cause)
> 2019-08-27 06:35:44.997 |   File
> "/usr/local/lib/python2.7/dist-packages/sqlalchemy/engine/base.py", line
> 1244, in _execute_context
> 2019-08-27 06:35:44.998 |     cursor, statement, parameters, context
> 2019-08-27 06:35:44.998 |   File
> "/usr/local/lib/python2.7/dist-packages/sqlalchemy/engine/default.py", line
> 552, in do_execute
> 2019-08-27 06:35:44.998 |     cursor.execute(statement, parameters)
> 2019-08-27 06:35:44.998 | DBError: (psycopg2.errors.UndefinedFunction)
> function instr(text, unknown) does not exist
> 2019-08-27 06:35:44.998 | LINE 1: select meta_data from image_locations
> where INSTR(meta_data,...
> 2019-08-27 06:35:44.998 |
>    ^
> 2019-08-27 06:35:44.998 | HINT:  No function matches the given name and
> argument types. You might need to add explicit type casts.
>
> Thanks,
>
> Nate
>
> [1] also http://paste.openstack.org/show/765665/ if that is an easier view
> [2]
> http://zuul.openstack.org/builds?project=openstack%2Fneutron&job_name=neutron-tempest-postgres-full&branch=master
> [3] https://review.opendev.org/#/q/project:openstack/glance+status:merged
>
>
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