High CPU Utilization of Druid Coordinator Node

Hi Everyone,
In our Environment we have single Broker, Realtime, Historical & Coordinator Node.
Sometime I see druid coordinator node is utilizing very high CPU but when I Restart coordinator node than CPU Utilization cames to normal.
This is happening in every 15 Days.
I Troubleshoot the issue but could not find anything.
I really appreciate some help on this.
Thanks