Comment 2 for bug 1939023

I can't see any major difference in the nodes between a good log [1] and a timeout out [2], except the timeout one has less free memory (but same total)

[1] * MemTotal: 8150828 kB
         MemFree: 1240728 kB

[2] * MemTotal: 8150828 kB
         MemFree: 293704 kB

Similarly the cpuinfo log looks the same good @ [3] bad at [4]

I see in the errors log an issue reaching rabbit on controller-1 with retries, I don't know if that is directly related

2021-08-05 18:18:42.101 ERROR /var/log/containers/nova/nova-api.log: 17 ERROR oslo.messaging._drivers.impl_rabbit [-] [116db7bd-d0dd-4522-b666-8282a6acc71f] AMQP server on overcloud-controller-1.internalapi.localdomain:5672 is unreachable: Server unexpectedly closed connection. Trying again in 1 seconds.: OSError: Server unexpectedly closed connection

[1] https://logserver.rdoproject.org/openstack-periodic-integration-stable1/opendev.org/openstack/tripleo-ci/master/periodic-tripleo-ci-centos-8-ovb-3ctlr_1comp-featureset035-wallaby/d385cc6/logs/undercloud/var/log/extra/meminfo.txt.gz
[2] https://logserver.rdoproject.org/61/34861/1/check/periodic-tripleo-ci-centos-8-ovb-3ctlr_1comp-featureset035-wallaby/894cb7e/logs/undercloud/var/log/extra/meminfo.txt.gz
[3] https://logserver.rdoproject.org/openstack-periodic-integration-stable1/opendev.org/openstack/tripleo-ci/master/periodic-tripleo-ci-centos-8-ovb-3ctlr_1comp-featureset035-wallaby/d385cc6/logs/undercloud/var/log/extra/cpuinfo.txt.gz
[4] https://logserver.rdoproject.org/61/34861/1/check/periodic-tripleo-ci-centos-8-ovb-3ctlr_1comp-featureset035-wallaby/894cb7e/logs/undercloud/var/log/extra/cpuinfo.txt.gz
[5] https://logserver.rdoproject.org/61/34861/1/check/periodic-tripleo-ci-centos-8-ovb-3ctlr_1comp-featureset035-wallaby/894cb7e/logs/overcloud-controller-0/var/log/extra/errors.txt.gz