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Hi all,

I'm trying to install tacker on mitaka Centos 7.2 RDO following this howto:
http://docs.openstack.org/developer/tacker/install/manual_installation.html
.

I'm having a DB error  when I run the command "tacker-db-manage
--config-file /etc/tacker/tacker.conf upgrade head":

root at overcloud-controller-0 tacker-0.3.1]# tacker-db-manage
--config-file /etc/tacker/tacker.conf upgrade head
INFO  [alembic.runtime.migration] Context impl MySQLImpl.
INFO  [alembic.runtime.migration] Will assume non-transactional DDL.
INFO  [alembic.runtime.migration] Running upgrade  -> 1c6b0d82afcd,
add tables for tacker framework
INFO  [alembic.runtime.migration] Running upgrade 1c6b0d82afcd ->
81ffa86020d, rpc_proxy
INFO  [alembic.runtime.migration] Running upgrade 81ffa86020d ->
4c31092895b8, empty message
INFO  [alembic.runtime.migration] Running upgrade 4c31092895b8 ->
13c0e0661015, add descrition to vnf
INFO  [alembic.runtime.migration] Running upgrade 13c0e0661015 ->
5958429bcb3c, modify datatype of value
INFO  [alembic.runtime.migration] Running upgrade 5958429bcb3c ->
12a57080b277, Add Service related dbs
INFO  [alembic.runtime.migration] Running upgrade 12a57080b277 ->
12a57080b278, Alter devices
Traceback (most recent call last):
  File "/bin/tacker-db-manage", line 10, in <module>
    sys.exit(main())
  File "/usr/lib/python2.7/site-packages/tacker/db/migration/cli.py",
line 153, in main
    CONF.command.func(config, CONF.command.name)
  File "/usr/lib/python2.7/site-packages/tacker/db/migration/cli.py",
line 67, in do_upgrade_downgrade
    do_alembic_command(config, cmd, revision, sql=CONF.command.sql)
  File "/usr/lib/python2.7/site-packages/tacker/db/migration/cli.py",
line 45, in do_alembic_command
    getattr(alembic_command, cmd)(config, *args, **kwargs)
  File "/usr/lib/python2.7/site-packages/alembic/command.py", line
174, in upgrade
    script.run_env()
  File "/usr/lib/python2.7/site-packages/alembic/script/base.py", line
397, in run_env
    util.load_python_file(self.dir, 'env.py')
  File "/usr/lib/python2.7/site-packages/alembic/util/pyfiles.py",
line 81, in load_python_file
    module = load_module_py(module_id, path)
  File "/usr/lib/python2.7/site-packages/alembic/util/compat.py", line
79, in load_module_py
    mod = imp.load_source(module_id, path, fp)
  File "/usr/lib/python2.7/site-packages/tacker/db/migration/alembic_migrations/env.py",
line 84, in <module>
    run_migrations_online()
  File "/usr/lib/python2.7/site-packages/tacker/db/migration/alembic_migrations/env.py",
line 76, in run_migrations_online
    context.run_migrations()
  File "<string>", line 8, in run_migrations
  File "/usr/lib/python2.7/site-packages/alembic/runtime/environment.py",
line 797, in run_migrations
    self.get_context().run_migrations(**kw)
  File "/usr/lib/python2.7/site-packages/alembic/runtime/migration.py",
line 312, in run_migrations
    step.migration_fn(**kw)
  File "/usr/lib/python2.7/site-packages/tacker/db/migration/alembic_migrations/versions/12a57080b278_alter_devices.py",
line 36, in upgrade
    nullable=False)
  File "<string>", line 8, in alter_column
  File "<string>", line 3, in alter_column
  File "/usr/lib/python2.7/site-packages/alembic/operations/ops.py",
line 1414, in alter_column
    return operations.invoke(alt)
  File "/usr/lib/python2.7/site-packages/alembic/operations/base.py",
line 318, in invoke
    return fn(self, operation)
  File "/usr/lib/python2.7/site-packages/alembic/operations/toimpl.py",
line 53, in alter_column
    **operation.kw
  File "/usr/lib/python2.7/site-packages/alembic/ddl/mysql.py", line
66, in alter_column
    else existing_autoincrement
  File "/usr/lib/python2.7/site-packages/alembic/ddl/impl.py", line
118, in _exec
    return conn.execute(construct, *multiparams, **params)
  File "/usr/lib64/python2.7/site-packages/sqlalchemy/engine/base.py",
line 914, in execute
    return meth(self, multiparams, params)
  File "/usr/lib64/python2.7/site-packages/sqlalchemy/sql/ddl.py",
line 68, in _execute_on_connection
    return connection._execute_ddl(self, multiparams, params)
  File "/usr/lib64/python2.7/site-packages/sqlalchemy/engine/base.py",
line 968, in _execute_ddl
    compiled
  File "/usr/lib64/python2.7/site-packages/sqlalchemy/engine/base.py",
line 1146, in _execute_context
    context)
  File "/usr/lib64/python2.7/site-packages/sqlalchemy/engine/base.py",
line 1341, in _handle_dbapi_exception
    exc_info
  File "/usr/lib64/python2.7/site-packages/sqlalchemy/util/compat.py",
line 200, in raise_from_cause
    reraise(type(exception), exception, tb=exc_tb)
  File "/usr/lib64/python2.7/site-packages/sqlalchemy/engine/base.py",
line 1139, in _execute_context
    context)
  File "/usr/lib64/python2.7/site-packages/sqlalchemy/engine/default.py",
line 450, in do_execute
    cursor.execute(statement, parameters)
  File "/usr/lib64/python2.7/site-packages/MySQLdb/cursors.py", line
174, in execute
    self.errorhandler(self, exc, value)
  File "/usr/lib64/python2.7/site-packages/MySQLdb/connections.py",
line 36, in defaulterrorhandler
    raise errorclass, errorvalue
sqlalchemy.exc.OperationalError: (_mysql_exceptions.OperationalError)
(1832, "Cannot change column 'device_id': used in a foreign key
constraint 'deviceattributes_ibfk_1'") [SQL: u'ALTER TABLE
deviceattributes MODIFY device_id VARCHAR(255) NOT NULL']


Any hint?

Regards,
Pedro Sousa
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