Collectd related issues on vocms machines

Generally puppet run sometimes fails at collectd installation. One of the very common reason is the following:

Mix up of urllib3 installation from pip and rpm.

Advice:

check /usr/lib/python2.7/site-packages/

grep urllib

there should be /usr/lib/python2.7/site-packages/urllib3/exceptions.py installed by RPM python-urllib3-1.10.2-7.el7.noarch

if not,

remove the urllib3 completely from yum and pip

pip uninstall urllib3

yum install python-urllib3

Also eventually check in /var/log/yum.log and /var/log/distro_sync.log when and why the python-urllib3 rpm had been removed

for reference: https://cern.service-now.com/service-portal/view-incident.do?n=INC2282205