ubuntu 20.04 Openstack Python thread Crate Error

[MASATO YOSHIDA]

ubuntu 20.04でOpenstack環境を構築すると、サービスを立ち上げ時にpythonのthread fork時にエラーがsyswlogに出力される

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May 7 15:31:51 os-cnt-01 neutron-server[20154]: Exception ignored in: <function _after_fork at 0x7ffa974dfd30>
May 7 15:31:51 os-cnt-01 neutron-server[20154]: Traceback (most recent call last):
May 7 15:31:51 os-cnt-01 neutron-server[20154]: File "/usr/lib/python3.8/threading.py", line 1454, in _after_fork
May 7 15:31:51 os-cnt-01 neutron-server[20154]: assert len(_active) == 1
May 7 15:31:51 os-cnt-01 neutron-server[20154]: AssertionError:

May 7 15:29:32 os-cnt-01 neutron-metadata-agent[19814]: Exception ignored in: <function _after_fork at 0x7f4322dd8dc0>
May 7 15:29:32 os-cnt-01 neutron-metadata-agent[19814]: Traceback (most recent call last):
May 7 15:29:32 os-cnt-01 neutron-metadata-agent[19814]: File "/usr/lib/python3.8/threading.py", line 1454, in _after_fork
May 7 15:29:32 os-cnt-01 neutron-metadata-agent[19814]: assert len(_active) == 1
May 7 15:29:32 os-cnt-01 neutron-metadata-agent[19814]: AssertionError:

May 7 15:32:02 os-cnt-01 neutron-openvswitch-agent[20207]: Exception ignored in: <function _after_fork at 0x7f562ab77dc0>
May 7 15:32:02 os-cnt-01 neutron-openvswitch-agent[20207]: Traceback (most recent call last):
May 7 15:32:02 os-cnt-01 neutron-openvswitch-agent[20207]: File "/usr/lib/python3.8/threading.py", line 1454, in _after_fork
May 7 15:32:02 os-cnt-01 neutron-openvswitch-agent[20207]: assert len(_active) == 1
May 7 15:32:02 os-cnt-01 neutron-openvswitch-agent[20207]: AssertionErrorr

May 7 21:25:40 os-cnt-01 cinder-scheduler[40457]: Exception ignored in: <function _after_fork at 0x7f6aabfd6790>
May 7 21:25:40 os-cnt-01 cinder-scheduler[40457]: Traceback (most recent call last):
May 7 21:25:40 os-cnt-01 cinder-scheduler[40457]: File "/usr/lib/python3.8/threading.py", line 1454, in _after_fork
May 7 21:25:40 os-cnt-01 cinder-scheduler[40457]: assert len(_active) == 1
May 7 21:25:40 os-cnt-01 cinder-scheduler[40457]: AssertionError:

May 8 14:06:09 os-cnt-01 heat-api[88345]: Exception ignored in: <function _after_fork at 0x7fc21d9b7c10>
May 8 14:06:09 os-cnt-01 heat-api[88345]: Traceback (most recent call last):
May 8 14:06:09 os-cnt-01 heat-api[88345]: File "/usr/lib/python3.8/threading.py", line 1454, in _after_fork
May 8 14:06:09 os-cnt-01 heat-api[88345]: assert len(_active) == 1
May 8 14:06:09 os-cnt-01 heat-api[88345]: AssertionError:

May 8 14:06:10 os-cnt-01 heat-engine[88346]: Exception ignored in: <function _after_fork at 0x7f3d22030c10>
May 8 14:06:10 os-cnt-01 heat-engine[88346]: Traceback (most recent call last):
May 8 14:06:10 os-cnt-01 heat-engine[88346]: File "/usr/lib/python3.8/threading.py", line 1454, in _after_fork
May 8 14:06:10 os-cnt-01 heat-engine[88346]: assert len(_active) == 1
May 8 14:06:10 os-cnt-01 heat-engine[88346]: AssertionError:

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[Mitsuya Shibata (cosmos-door)]

だいぶ古い話で恐縮ですが、同年の2/20には同様の問題が修正されているように見えます。

* https://bugs.launchpad.net/nova/+bug/1863021
* https://launchpad.net/ubuntu/+source/nova/2:21.0.0~b2~git2020021008.1fcd74730d-0ubuntu2

もう使用していないかもしれませんが、もし似たような状況が発生するようならお知らせください。

[Launchpad Janitor (janitor)]

[Expired for Ubuntu Japanese Kaizen Project because there has been no activity for 60 days.]