Configuring an Internal Data Store Cluster
You can run an Internal Data Store instance as a single node, or you can configure multiple Internal Data Store instances to run as a cluster to provide high availability and redundancy. You must specify at least one host and port pair for your configuration in Command Central.Internal Data Store comes with a default host and port pair.
To configure an
Internal Data Store cluster
1. In Command Central, for each Internal Data Store instance that is part of the cluster, navigate to Environments > Instances > All > Internal Data Store > Configuration.
2. Select Clustering from the drop-down menu, and then click Edit.
3. Specify values for each field in the table as outlined in the description column:
Field | Description |
Cluster Name | Required. The name of the cluster. All instances must have the same cluster name. |
Cluster Discovery Nodes | Required. Click  , and then do the following to add host and port information for each Internal Data Store instance that is part of the cluster: a. In the Host column, specify the host information for an Internal Data Store instance. The default host is localhost. b. In the Port column, specify the port for an Internal Data Store instance. The default port is 9340. |
4. Optionally, click Test to verify that your configuration is valid.
5. Save your changes.
6. Select Properties from the drop-down menu, and then click Edit.
7. Specify a value for discovery.zen.minimum_master_nodes. The number of master eligible nodes must be either 3 or greater than half of the nodes you have in a cluster. For example, in a cluster with three nodes, you specify discovery.zen.minimum_master_nodes : 2.
8. Click Apply to save your changes.
9. Restart the Internal Data Store instance.