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LEAVES

Warning

SingleStore 9.0 gives you the opportunity to preview, evaluate, and provide feedback on new and upcoming features prior to their general availability. In the interim, SingleStore 8.9 is recommended for production workloads, which can later be upgraded to SingleStore 9.0.

This view contains information about leaves.

Column Name

Description

HOST

The hostname or IP address for a given leaf node.

PORT

The port number of a given leaf node.

AVAILABILITY_GROUP

The ID of the related availability group.

PAIR_HOST

The hostname or IP address for the mate of a given leaf which is part of a pair.

PAIR_PORT

The port number of the mate of a given leaf which is part of a pair.

STATE

The state of a given leaf node.

OPENED_CONNECTIONS

The number of connections opened on a given leaf node.

AVERAGE_ROUNDTRIP_LATENCY

The average ping roundtrip latency in milliseconds for a given leaf node.

NODE_ID

The unique ID of a given leaf node.

GRACE_PERIOD_IN_SECONDS

Time left for the node to recover after failing and coming back online. This is set by engine variable failover_initial_grace_interval_seconds.

MINIMUM_PRE_PREPARE_TS

The timestamp of the cluster-wide oldest distributed transaction among all participants (master aggregator and leaves).

RUNTIME_STATE

Internal.

Last modified: June 2, 2023

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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