Min Master Node Higher Than Eligible
The minimum_master_nodes setting is greater than the number of master-eligible nodes in the cluster. The cluster might be cannot elect a master and might not start reliably.
For a complete list of insights, refer to AutoOps insights.
| Field | Value |
|---|---|
| Component | Elasticsearch |
| Severity | High |
| Scope | Cluster |
| Domains | configuration, high-availability, stability |
The following is an example of what you might see when this insight is triggered. Real insights use live data and links from your deployment or cluster.
Number of nodes with the master role: 12.
Minimum master nodes current settings: es-data-01
AutoOps shows different recommendations depending on how their conditions match your deployment or cluster.
Check minimum master nodes setting
Condition: Always shown for this insight.
Review discovery.zen.minimum_master_nodes, or the cluster bootstrapping voting configuration on supported versions, so it matches master-eligible node count and quorum requirements.
Check master node is running
Condition: Always shown for this insight.
Confirm master-eligible nodes are running, healthy, and able to participate in master election.
Impact: The cluster will not start. The value in the setting minimum-master-nodes should be 50% of the number of master eligible nodes in your cluster, rounded up to the nearest integer.