Ocata -> Pike undercloud upgrade fails: Reason: object.__new__(thread.lock) is not safe, use thread.lock.__new__()

[Marius Cornea]

Ocata -> Pike undercloud upgrade fails with the following error message:

#############################################################################
Undercloud upgrade failed.

Reason: object.__new__(thread.lock) is not safe, use thread.lock.__new__()

See the previous output for details about what went wrong. The full install
log can be found at /home/stack/.instack/install-undercloud.log.

#############################################################################

The upgrade process though seems to reach the last steps. Attaching the install-undercloud.log

Overcloud nova nodes are in error state after upgrade:

(undercloud) [stack@undercloud-0 ~]$ nova list
+--------------------------------------+------------------------+--------+------------+-------------+-----------------------+
| ID | Name | Status | Task State | Power State | Networks |
+--------------------------------------+------------------------+--------+------------+-------------+-----------------------+
| d3f92a37-2b6b-4370-8430-3f1ffbb4994e | overcloud-controller-0 | ERROR | - | Running | ctlplane=192.168.0.19 |
+--------------------------------------+------------------------+--------+------------+-------------+-----------------------+

Reproducing steps:
1. Depoy Ocata undercloud and overcloud
2. Upgrade undercloud per the instructions at https://docs.openstack.org/developer/tripleo-docs/post_deployment/upgrade.html

[Marios Andreou (marios-b)]

duplicate of https://bugs.launchpad.net/mistral/+bug/1688518 I think

[Ben Nemec (bnemec)]

Agree with Marios, and marking as a duplicate since the other bug is already tracked for tripleo too.