Red Hat Summit Red Hat SummitSupportConsoleDevelopersStart a trialContact

11.4. SNMP Traps Produced by Red Hat High Availability Add-On

The foghorn daemon generates the following traps:
  • fenceNotifyFenceNode
    This trap occurs whenever a fenced node attempts to fence another node. Note that this trap is only generated on one node - the node that attempted to perform the fence operation. The notification includes the following fields:
    • fenceNodeName - name of the fenced node
    • fenceNodeID - node id of the fenced node
    • fenceResult - the result of the fence operation (0 for success, -1 for something went wrong, -2 for no fencing methods defined)
  • rgmanagerServiceStateChange
    This trap occurs when the state of a cluster service changes. The notification includes the following fields:
    • rgmanagerServiceName - the name of the service, which includes the service type (for example, service:foo or vm:foo).
    • rgmanagerServiceState - the state of the service. This excludes transitional states such as starting and stopping to reduce clutter in the traps.
    • rgmanagerServiceFlags - the service flags. There are currently two supported flags: frozen, indicating a service which has been frozen using clusvcadm -Z, and partial, indicating a service in which a failed resource has been flagged as non-critical so that the resource may fail and its components manually restarted without the entire service being affected.
    • rgmanagerServiceCurrentOwner - the service owner. If the service is not running, this will be (none).
    • rgmanagerServicePreviousOwner - the last service owner, if known. If the last owner is not known, this may indicate (none).
The corosync-nodifyd daemon generates the following traps:
  • corosyncNoticesNodeStatus
    This trap occurs when a node joins or leaves the cluster. The notification includes the following fields:
    • corosyncObjectsNodeName - node name
    • corosyncObjectsNodeID - node id
    • corosyncObjectsNodeAddress - node IP address
    • corosyncObjectsNodeStatus - node status (joined or left)
  • corosyncNoticesQuorumStatus
    This trap occurs when the quorum state changes. The notification includes the following fields:
    • corosyncObjectsNodeName - node name
    • corosyncObjectsNodeID - node id
    • corosyncObjectsQuorumStatus - new state of the quorum (quorate or NOT quorate)
  • corosyncNoticesAppStatus
    This trap occurs when a client application connects or disconnects from Corosync.
    • corosyncObjectsNodeName - node name
    • corosyncObjectsNodeID - node id
    • corosyncObjectsAppName - application name
    • corosyncObjectsAppStatus - new state of the application (connected or disconnected)
Back to top
Red Hat logoGithubredditYoutubeTwitter

Learn

Try, buy, & sell

Communities

About Red Hat Documentation

We help Red Hat users innovate and achieve their goals with our products and services with content they can trust. Explore our recent updates.

Making open source more inclusive

Red Hat is committed to replacing problematic language in our code, documentation, and web properties. For more details, see the Red Hat Blog.

About Red Hat

We deliver hardened solutions that make it easier for enterprises to work across platforms and environments, from the core datacenter to the network edge.

Theme

© 2025 Red Hat