vRealize Log Insight sends specific system notifications to notify you of scale-out events such as node joining and membership status changes.

Sent by

Notification Name

Description

Master node

Approval needed for new worker node

This notification notifies you of a membership request from a worker node. An Admin user needs to approve or deny the request.

Master node

New worker node approved

This notification notifies you that an Admin user approved a membership request from a worker node to join a vRealize Log Insight cluster

Master node

New worker node denied

This notification notifies you that an Admin user denied a membership request from a worker node to join a vRealize Log Insight cluster. If the request was denied by mistake, an Admin user can place the request again from the worker and then approve it at the master node.

Master node

Maximum supported nodes exceeded due to worker node

This notification notifies you that the number of worker nodes in the Log Insight cluster has exceeded the maximum supported count due to a new worker node.

Master node

Allowed nodes exceeded, new worker node denied

This notification notifies you that an Admin user attempted to add more nodes to the cluster than the maximum allowed node count and the node has been denied.

Master node

Worker node disconnected

This notification notifies you that a previously connected worker node disconnected from the vRealize Log Insight cluster.

Master node

Worker node reconnected

This notification notifies you that a worker node reconnected to the vRealize Log Insight cluster.

Master node

Worker node revoked by admin

This notification notifies you that an Admin user revoked a worker node membership and the node is no longer a part of the vRealize Log Insight cluster.

Master node

Unknown worker node rejected

This notification notifies you that the vRealize Log Insight master node rejected a request by a worker node because the worker node is unknown to the master. If the worker is a valid node and it should be added to the cluster, log in to the worker node, remove its token file and user configuration at /storage/core/loginsight/config/, and run restart loginsight service on the worker node.

Master node

Worker node has entered into maintenance mode

This notification notifies you that a worker node entered into maintenance mode and an Admin user has to remove the worker node from maintenance mode before it can receive configuration changes and serve queries.

Master node

Worker node has returned to service

This notification notifies you that a worker node exited maintenance mode and returned to service.

Worker node

Master failed or disconnected from worker node

This notification notifies you that a worker node that sends the notification is unable to contact the vRealize Log Insight master node. This might indicate that the master node failed, and might need to be restarted. If the master node failed, the cluster cannot be configured and queries cannot be submitted until it is back online. Worker nodes continue to ingest messages.

Note:

You might receive many such notifications because many workers might detect the master node failure independently and raise notifications.

Worker node

Master connected to worker node

This notification notifies you that a worker node that sends the notification is reconnected to the vRealize Log Insight master node.