What does "corosync: [IPC ] Invalid IPC credentials." messages mean on Red Hat Enterprise Linux?

Solution Verified - Updated -

Issue

  • Getting "Invalid IPC credentials." messages from corosync in /var/log/messages on RHEL cluster nodes. Does this indicate any harms?
# grep IPC messages*
corosync[3932]:   [IPC   ] Invalid IPC credentials.
corosync[3932]:   [IPC   ] Invalid IPC credentials.
  • On that machine im having the following message every one minute.
corosync[3034]:   [IPC   ] Invalid IPC credentials.

Environment

  • Red Hat Enterprise Linux Server (with the High Availability Add on)
  • Red Hat High Availability Cluster with at least 2 nodes
    • corosync is used for cluster transport.

  • A non-root user is trying to execute clustat:

    • The command triggering the message may be run by system monitoring software.

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