Mongod process cpu high

At a specific time each day, the mongod process causes cpu high (over 80%).
What should I focus on?

Hi @George_Kim welcome to the community!

There’s not enough information here, but I would start with:

  1. How did you determine that it’s the MongoDB process that caused the CPU spike?
  2. Showing the output of mongotop and mongostat during the period
  3. Showing the mongod logs during this period as well
  4. Describe your deployment: what’s the MongoDB version, the hardware it’s running on, is this a standalone/replica set/sharded cluster deployment, how did you install MongoDB, and your OS version.

Best regards