Red Hat Satellite 6.12: Why is mosquitto unable to accept new connections?

Solution Verified - Updated -

Issue

  • While running on its default configuration, mosquitto is unable to accept more than ~1014 clients
  • mosquitto logs show the following when trying to accept new connections:

    $ journalctl -f -u mosquitto
    . . .
    Oct 06 15:17:12 F.Q.D.N mosquitto[47597]: 1665069432: Unable to accept new connection, system socket count has been exceeded. Try increasing "ulimit -n" or equivalent.
    

Environment

  • Red Hat Satellite
    • 6.12

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