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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.

RESTORE REDUNDANCY

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Restore redundancy by replicating any partitions with only one instance.

Syntax

RESTORE REDUNDANCY ON db_name

Remarks

  • db_name is the name of a SingleStore database.

  • Similarly, REBALANCE PARTITIONS restores redundancy by replicating any partitions with only one instance. However, REBALANCE PARTITIONS then does the additional step of moving partitions around to ensure balance across all the leaves.

  • This command causes implicit commits. Refer to COMMIT for more information.

  • Node Requirements for SingleStore Commands

  • This command cannot be run on system databases.

  • Refer to the Permission Matrix for the required permission.

Example

RESTORE REDUNDANCY on memsql_demo;
Query OK, 1 row affected (2.89 sec)

Last modified: July 31, 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