Configure an existing Explore cluster with master nodes

If your Explore cluster was deployed without master-only nodes, and includes six or more data-only nodes, complete the procedures in this guide.

Before you begin

Disable record ingest

  1. Log into the Admin UI on any data-only node.
  2. In the Explore Cluster Settings section, click Cluster Data Management.
  3. Click Disable Record Ingest.

Next steps

Join each master-only node to the existing Explore cluster and then continue to configure the new master-only nodes.

Configure three master-only nodes

  1. Log into the Admin UI on a node intended for cluster task management.
  2. In the Appliance Settings section, click Running Config.
  3. Click Edit config.
  4. Add an entry to the Running Config file by completing the following steps:
    1. Add a comma after the second to last curly brace (}).
    2. Press ENTER to create a new line.
    3. Paste the following code on the new line before the final curly brace:
      "cluster": {
              "data": false,
              "min_master_nodes": 2
          }
      
  5. Click Update.
  6. Click Done.
  7. Click Save config and then click Save.
  8. In the Appliance Settings section, click Shutdown or Restart.
  9. Next to the Search service, click Restart.
  10. Repeat these steps on each master-only node.

Configure the data-only nodes

  1. Log into the Admin UI on a node intended for data storage.
  2. In the Appliance Settings section, click Running Config.
  3. Click Edit config.
  4. Add an entry to the Running Config file by completing the following steps:
    1. Add a comma after the second to last curly brace (}).
    2. Press ENTER to create a new line.
    3. Paste the following code on the new line before the final curly brace:
      "cluster": {
              "master": false,
              "min_master_nodes": 2
          }
  5. Click Update.
  6. Click Done.
  7. Click Save config and then click Save.
  8. In the Appliance Settings section, click Shutdown or Restart.
  9. Next to the Search service, click Restart.
  10. Repeat these steps on each data-only node.

Next steps

After all of the nodes are configured with their designated role, connect each data-only node to Discover and Command appliances. Master nodes should not be connected to a Discover or Command appliance.
Tip:Learn how to add or remove nodes from a cluster that has master nodes.

Enable record ingest

  1. Log into the Admin UI on any data-only node.
  2. In the Explore Cluster Settings section, click Cluster Data Management.
  3. Click Enable Record Ingest.
Published 2020-11-30 11:03