Add a Node to a Managed Cluster

Although Scylla Manager is aware of all topology changes made within every cluster it manages, it cannot properly manage a cluster without establishing connections with every node in the cluster using the Scylla Manager Agent which is on each managed node.

Before You Begin

  • Confirm you have a managed cluster running under Scylla Manager. If you do not have a managed cluster, add one with this procedure.

  • Confirm the node or Datacenter was added to the Scylla Cluster using nodetool status . If not, add the node or Datacenter before continuing.

Procedure

  1. Add Scylla Manager Agent to the new node. Use the same authentication token as you did for the other nodes in this cluster. Do not generate a new token.

  2. Confirm the node / datacenter was added by checking its sctool status. From the node running Scylla Manager server run the sctool status command, using the name of the managed cluster.

    sctool status -c prod-cluster
    Datacenter: eu-west
    ╭────┬────────────┬───────────┬───────────┬───────────────┬──────────┬──────┬──────────┬────────┬──────────┬──────────────────────────────────────╮
    │    │ Alternator │ CQL       │ REST      │ Address       │ Uptime   │ CPUs │ Memory   │ Scylla │ Agent    │ Host ID                              │
    ├────┼────────────┼───────────┼───────────┼───────────────┼──────────┼──────┼──────────┼────────┼──────────┼──────────────────────────────────────┤
    │ UN │ UP (4ms)   │ UP (3ms)  │ UP (2ms)  │ 34.203.122.52 │ 237h2m1s │ 4    │ 15.43GiB │ 4.1.0  │ 2.2.0    │ 8bfd18f1-ac3b-4694-bcba-30bc272554df │
    │ UN │ UP (15ms)  │ UP (11ms) │ UP (12ms) │ 10.0.138.46   │ 237h2m1s │ 4    │ 15.43GiB │ 4.1.0  │ 2.2.0    │ 238acd01-813c-4c55-bd65-5219bb19bc20 │
    │ UN │ UP (17ms)  │ UP (5ms)  │ UP (7ms)  │ 10.0.196.204  │ 237h2m1s │ 4    │ 15.43GiB │ 4.1.0  │ 2.2.0    │ bde4581a-b25e-49fc-8cd9-1651d7683f80 │
    │ UN │ UP (10ms)  │ UP (4ms)  │ UP (5ms)  │ 10.0.66.115   │ 237h2m1s │ 4    │ 15.43GiB │ 4.1.0  │ 2.2.0    │ 918a52aa-cc42-43a4-a499-f7b1ccb53b18 │
    ╰────┴────────────┴───────────┴───────────┴───────────────┴──────────┴──────┴──────────┴────────┴──────────┴──────────────────────────────────────╯
    
  3. If you are using the Scylla Monitoring Stack, continue to Connect Managed Cluster to Scylla Monitoring for more information.