How to reduce the space consumed by ceilometer database ?

Solution Verified - Updated 2017-01-18T20:04:50+00:00 -

Issue

The OpenStack controller falls short of space due to increasing size of ceilometer database .
How to shrink / reduce the space consumed by ceilometer database ?
Can the data in ceilometer be configured to cleared after a number of days ?
Can the older data be configured to purged consistently ?
Why is the size of /var/lib/mongodb increasing gradually ?
How to reduce the size of mongodb
How to reduce the size of ceilometer mongodb

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