Description of problem:
FFU fails on FFU upgrade run, neutron DB sync fails

File \"/usr/lib/python2.7/site-packages/alembic/script/revision.py\", line 303, in get_revisions\n    for rev_id in resolved_id)\n  File \"/usr/lib/python2.7/site-packages/alembic/script/revision.py\", line 303, in <genexpr>\n    for rev_id in resolved_id)\n  File \"/usr/lib/python2.7/site-packages/alembic/script/revision.py\", line 358, in _revision_for_ident\n    resolved_id)\nalembic.script.revision.ResolutionError: No such revision or branch '7db8cd315b95'", "stderr_lines": ["INFO  [alembic.runtime.migration] Context impl MySQLImpl.", "INFO  [alembic.runtime.migration] Will assume non-transactional DDL.", "INFO  [alembic.runtime.migration] Context impl MySQLImpl."

Continuing 1692838


Version-Release number of selected component (if applicable):
core_puddle: 2019-05-10.1


How reproducible:
100%

Steps to Reproduce:
1. deploy osp10
2. upgrade the undercloud FFU to osp13 
3. Perform overcloud FFU upgrade

Actual results:

The FFU overcloud upgrade run fails on neutron DB sync step  

Expected results:

no failures

Additional info:

TASK [Neutron db sync] *********************************************************
Tuesday 14 May 2019  11:50:24 -0400 (0:00:02.002)       0:19:44.385 *********** 
fatal: [controller-0]: FAILED! => {"changed": true, "cmd": ["neutron-db-manage", "upgrade", "head"], "delta": "0:00:01.420792", "end": "2019-05-14 15:50:25.825312", "msg": "non-zero return code", "rc": 1, "start": "2019-05-14 15:50:24.404520", "stderr": "INFO  [alembic.runtime.migration] Context impl MySQLImpl.\nINFO  [alembic.runtime.migration] Will assume non-transactional DDL.\nINFO  [alembic.runtime.migration] Context impl MySQLImpl.\nINFO  [alembic.runtime.migration] Will assume non-transactional DDL.\nINFO  [alembic.runtime.migration] Running upgrade 5cd92597d11d -> 929c968efe70, add_pk_version_table\nINFO  [alembic.runtime.migration] Running upgrade 929c968efe70 -> a9c43481023c, extend_pk_with_host_and_add_status_to_ml2_port_binding\nINFO  [alembic.runtime.migration] Context impl MySQLImpl.\nINFO  [alembic.runtime.migration] Will assume non-transactional DDL.\nTraceback (most recent call last):\n  File \"/bin/neutron-db-manage\", line 10, in <module>\n    sys.exit(main())\n  File \"/usr/lib/python2.7/site-packages/neutron/db/migration/cli.py\", line 686, in main\n    return_val |= bool(CONF.command.func(config, CONF.command.name))\n  File \"/usr/lib/python2.7/site-packages/neutron/db/migration/cli.py\", line 205, in do_upgrade\n    run_sanity_checks(config, revision)\n  File \"/usr/lib/python2.7/site-packages/neutron/db/migration/cli.py\", line 670, in run_sanity_checks\n    script_dir.run_env()\n  File \"/usr/lib/python2.7/site-packages/alembic/script/base.py\", line 407, in run_env\n    util.load_python_file(self.dir, 'env.py')\n  File \"/usr/lib/python2.7/site-packages/alembic/util/pyfiles.py\", line 93, in load_python_file\n    module = load_module_py(module_id, path)\n  File \"/usr/lib/python2.7/site-packages/alembic/util/compat.py\", line 79, in load_module_py\n    mod = imp.load_source(module_id, path, fp)\n  File \"/usr/lib/python2.7/site-packages/networking_bigswitch/plugins/bigswitch/db/migration/alembic_migrations/env.py\", line 86, in <module>\n    run_migrations_online()\n  File \"/usr/lib/python2.7/site-packages/networking_bigswitch/plugins/bigswitch/db/migration/alembic_migrations/env.py\", line 77, in run_migrations_online\n    context.run_migrations()\n  File \"<string>\", line 8, in run_migrations\n  File \"/usr/lib/python2.7/site-packages/alembic/runtime/environment.py\", line 797, in run_migrations\n    self.get_context().run_migrations(**kw)\n  File \"/usr/lib/python2.7/site-packages/alembic/runtime/migration.py\", line 303, in run_migrations\n    for step in self._migrations_fn(heads, self):\n  File \"/usr/lib/python2.7/site-packages/neutron/db/migration/cli.py\", line 661, in check_sanity\n    revision, rev, implicit_base=True):\n  File \"/usr/lib/python2.7/site-packages/alembic/script/revision.py\", line 641, in _iterate_revisions\n    requested_lowers = self.get_revisions(lower)\n  File \"/usr/lib/python2.7/site-packages/alembic/script/revision.py\", line 298, in get_revisions\n    return sum([self.get_revisions(id_elem) for id_elem in id_], ())\n  File \"/usr/lib/python2.7/site-packages/alembic/script/revision.py\", line 303, in get_revisions\n    for rev_id in resolved_id)\n  File \"/usr/lib/python2.7/site-packages/alembic/script/revision.py\", line 303, in <genexpr>\n    for rev_id in resolved_id)\n  File \"/usr/lib/python2.7/site-packages/alembic/script/revision.py\", line 358, in _revision_for_ident\n    resolved_id)\nalembic.script.revision.ResolutionError: No such revision or branch '7db8cd315b95'", "stderr_lines": ["INFO  [alembic.runtime.migration] Context impl MySQLImpl.", "INFO  [alembic.runtime.migration] Will assume non-transactional DDL.", "INFO  [alembic.runtime.migration] Context impl MySQLImpl.", "INFO  [alembic.runtime.migration] Will assume non-transactional DDL.", "INFO  [alembic.runtime.migration] Running upgrade 5cd92597d11d -> 929c968efe70, add_pk_version_table", "INFO  [alembic.runtime.migration] Running upgrade 929c968efe70 -> a9c43481023c, extend_pk_with_host_and_add_status_to_ml2_port_binding", "INFO  [alembic.runtime.migration] Context impl MySQLImpl.", "INFO  [alembic.runtime.migration] Will assume non-transactional DDL.", "Traceback (most recent call last):", "  File \"/bin/neutron-db-manage\", line 10, in <module>", "    sys.exit(main())", "  File \"/usr/lib/python2.7/site-packages/neutron/db/migration/cli.py\", line 686, in main", "    return_val |= bool(CONF.command.func(config, CONF.command.name))", "  File \"/usr/lib/python2.7/site-packages/neutron/db/migration/cli.py\", line 205, in do_upgrade", "    run_sanity_checks(config, revision)", "  File \"/usr/lib/python2.7/site-packages/neutron/db/migration/cli.py\", line 670, in run_sanity_checks", "    script_dir.run_env()", "  File \"/usr/lib/python2.7/site-packages/alembic/script/base.py\", line 407, in run_env", "    util.load_python_file(self.dir, 'env.py')", "  File \"/usr/lib/python2.7/site-packages/alembic/util/pyfiles.py\", line 93, 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/networking_bigswitch/plugins/bigswitch/db/migration/alembic_migrations/env.py\", line 86, in <module>", "    run_migrations_online()", "  File \"/usr/lib/python2.7/site-packages/networking_bigswitch/plugins/bigswitch/db/migration/alembic_migrations/env.py\", line 77, 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 303, in run_migrations", "    for step in self._migrations_fn(heads, self):", "  File \"/usr/lib/python2.7/site-packages/neutron/db/migration/cli.py\", line 661, in check_sanity", "    revision, rev, implicit_base=True):", "  File \"/usr/lib/python2.7/site-packages/alembic/script/revision.py\", line 641, in _iterate_revisions", "    requested_lowers = self.get_revisions(lower)", "  File \"/usr/lib/python2.7/site-packages/alembic/script/revision.py\", line 298, in get_revisions", "    return sum([self.get_revisions(id_elem) for id_elem in id_], ())", "  File \"/usr/lib/python2.7/site-packages/alembic/script/revision.py\", line 303, in get_revisions", "    for rev_id in resolved_id)", "  File \"/usr/lib/python2.7/site-packages/alembic/script/revision.py\", line 303, in <genexpr>", "    for rev_id in resolved_id)", "  File \"/usr/lib/python2.7/site-packages/alembic/script/revision.py\", line 358, in _revision_for_ident", "    resolved_id)", "alembic.script.revision.ResolutionError: No such revision or branch '7db8cd315b95'"], "stdout": "Running upgrade for neutron ...\nOK", "stdout_lines": ["Running upgrade for neutron ...", "OK"]}