Scaling a MachineSet on RHV fails with "Cannot add VM. Maximum number of threads per cpu exceeded"

Solution Verified - Updated -

Issue

  • Cannot create new worker or infra nodes running on RHV.
  • MachineSet fails to scale up
  • RHV VM creation fails

Environment

  • Red Hat OpenShift Container Platform 4.x
  • Red Hat Virtualization 4.x

Subscriber exclusive content

A Red Hat subscription provides unlimited access to our knowledgebase, tools, and much more.

Current Customers and Partners

Log in for full access

Log In

New to Red Hat?

Learn more about Red Hat subscriptions

Using a Red Hat product through a public cloud?

How to access this content