Answer by salvorapi for Hi, i have installed ceilometer on my controller node and today I check that mongodb database size is 11 GB. I want to cleanup old data, how can I do ? There is a procedure/method ? Thanks. Salvo.

Hi, I have another solution in configuration of ceilometer. If you open **ceilometer.conf** file you can found this code: # number of seconds that samples are kept in the database for # (<= 0 means forever) (integer value) time_to_live=604800 By default the **time_to_live** is set to 0 that means forever! I have set the value to 604800 ( 7 days x 24 hours x 60 minute x 60 second ) and now my database does not grow.