The cluster key (or license) enables features and capacity within Redis Enterprise Software. You can add or update a cluster key at any time in a cluster lifecycle. When the cluster does not have a cluster key, the cluster is in trial mode. Trial Mode Trial mode is limited to thirty days and a total of four shards, including master and slave shards. Any new installation starts its thirty-day clock from the day the cluster setup was done (with the first cluster node provisioned).
In settings > alerts, you can enable alerts for node or cluster events, such as high memory usage or throughput. You can also enable alerts for databases in the database configuration. Configured alerts are shown: As a warning indicator (for the node and cluster In the log In emails, if you configure email alerts Note - If you enable alerts for "Node joined" or "Node removed" actions, you must also enable "Receive email alerts" so that the alerts are sent.
You can view and set various cluster settings in the Settings > General page. Entering a Cluster Key After purchasing a cluster key and if your account has the "Admin" role, you can enter the key in the Cluster Key field, either during initial cluster creation or at any time afterward. The key defines various cluster settings, such as the maximum number of shards you can have in the cluster.