TripleO CI jobs fail: can't connect to nodepool hosts

[Sagi (Sergey) Shnaidman]

A lot of ovb and multinode jobs fail because lose connections to nodepool hosts:

http://logs.openstack.org/03/525203/2/check-tripleo/tripleo-ci-centos-7-ovb-ha-oooq-ipv6/b8dd4d1/job-output.txt.gz

2017-12-12 09:52:44.030572 |
2017-12-12 09:52:47.661900 | ANSIBLE PARSE ERROR
2017-12-12 09:52:47.661959 | Using /var/lib/zuul/builds/b8dd4d11d8f243498a4b183a41dcdd93/ansible/playbook_0/ansible.cfg as config file
2017-12-12 09:52:47.661988 | [primary] Starting to log 3d93a0f472ab49b188e9c347a2ae8d35 for task TASK: command
2017-12-12 09:52:47.662019 | [primary] Starting to log 7fc345c2f7fa434d96a86ee967d530d9 for task TASK: command
2017-12-12 09:52:47.662032 | fatal: [primary]: UNREACHABLE! => {"changed": false, "msg": "SSH Error: data could not be sent to remote host \"66.187.229.246\". Make sure this host can be reached over ssh", "unreachable": true}
2017-12-12 09:52:47.662821 | RUN END RESULT_NORMAL: [untrusted : git.openstack.org/openstack-infra/tripleo-ci/playbooks/tripleo-ci/run.yaml@master]
2017-12-12 09:52:47.663344 | POST-RUN START: [untrusted : git.openstack.org/openstack-infra/tripleo-ci/playbooks/tripleo-ci/post.yaml@master]

[Sagi (Sergey) Shnaidman (sshnaidm)]

seems like infra related, from #openstack-infra

<AJaeger> We had earlier some problems, looked network related. It seems solved now, so please recheck - and if happens for jobs *started* in the last 60 mins, please tell again. Note you can always check our status at https://wiki.openstack.org/wiki/Infrastructure_Status

[Alex Schultz (alex-schultz)]

infra has restarted zuul and fixed the issue causing memory leaks. Closing this one as fixed released