The elasticsearch consumes a lot of CPU on Satellite 6

Issue

• The elasticsearch service consumes a lot of CPU on Satellite 6 server.
• On our Satellite installation elasticsearch started to consume between 200 and 350% of CPU on a 4 core machine.With an average of 300%.
• This is constant, restarting the katello service or the machine does not have any effect. After elasticsearch is up it starts consuming CPU again.