Github user shaneknapp commented on the pull request:
https://github.com/apache/spark/pull/9893#issuecomment-180578099
so, it looks like our version of docker is old enough to fall in to
this category:
https://blog.docker.com/2015/10/docker-hub-deprecation-1-5/
[root@amp-jenkins-worker-02 ~]# rpm -qa | grep docker
docker-io-1.5.0-1.el6.x86_64
after digging around, i found that while centos 6 support isn't
mentioned directly on the docker site, that upgrading to 1.7.1-2.el6
will work for us.
http://www.projectatomic.io/blog/2015/07/docker-centos-6-and-you/
we're running a new enough kernel and centos version to support 1.7:
[root@amp-jenkins-worker-02 ~]# cat /etc/issue
CentOS release 6.6 (Final)
Kernel \r on an \m
[root@amp-jenkins-worker-02 ~]# uname -r
2.6.32-573.3.1.el6.x86_64
this will be pretty straightforward for me to do, but will require a
short downtime as i would need to restart the docker service on all of
the workers. i'll guess that we're looking at about an hour of system
downtime, max, and a couple of hours previously for builds to finish
(so i don't have to kill them manually).
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