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Important

Helios features are now enabled during weekly update windows and are no longer directly tied to SingleStore engine releases. Refer to the release notes to view the latest features available in your Helios cluster.

MV_NODES

This view describes all SingleStore Helios nodes in the cluster.

The view holds one row per node.

mv_nodes may only be queried while connected to an aggregator node.

Column name

Description

id

The ID of the node. This ID matches the node_id reported for tasks running on the node.

ip_addr

The IP address of the node.

port

The port on which the node is listening.

type

The type of a given node: MA, Leaf, or CA.

state

The state of a given node: Online, Offline, Detached, or Attaching.

availability_group

The ID of the related availability group for a given node.

num_cpus

The number of CPUs available to a given node.

max_memory_mb

The maximum memory use, in MB, of a given node. This is the same value as the engine variable maximum_memory.

max_table_memory_mb

The maximum memory, in MB, that can be used for table storage. This is the value value as the engine variable maximum_table_memory.

memory_used_mb

The amount of memory, in MB, used on a given node for storing tables, query execution, and any other purposes.

table_memory_used_mb

The amount of memory, in MB, used on a given node to store table data.

total_data_disk_mb

The total amount of disk storage, in MB.

available_data_disk_mb

The amount of available disk storage, in MB.

uptime

The amount of time in seconds that a node has been running.

version

The version of SingleStore that a given node is running on.

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Verification instructions

Note: You must install cosign to verify the authenticity of the SingleStore file.

Use the following steps to verify the authenticity of singlestoredb-server, singlestoredb-toolbox, singlestoredb-studio, and singlestore-client SingleStore files that have been downloaded.

You may perform the following steps on any computer that can run cosign, such as the main deployment host of the cluster.

  1. (Optional) Run the following command to view the associated signature files.

    curl undefined

  2. Download the signature file from the SingleStore release server.

    • Option 1: Click the Download Signature button next to the SingleStore file.

    • Option 2: Copy and paste the following URL into the address bar of your browser and save the signature file.

    • Option 3: Run the following command to download the signature file.

      curl -O undefined

  3. After the signature file has been downloaded, run the following command to verify the authenticity of the SingleStore file.

    echo -n undefined |
        cosign verify-blob --certificate-oidc-issuer https://oidc.eks.us-east-1.amazonaws.com/id/CCDCDBA1379A5596AB5B2E46DCA385BC \
          --certificate-identity https://kubernetes.io/namespaces/freya-production/serviceaccounts/job-worker \
          --bundle undefined \
          --new-bundle-format -
    Verified OK

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