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Important

The SingleStore 9.1 release candidate (RC) is available now. It will be promoted to general availability (GA) soon and at that time it will be renamed to SingleStore 10.

In the interim, SingleStore 9.1 RC can be used to preview, evaluate, and provide feedback on the new and upcoming features in SingleStore 10, while SingleStore 9.0 is recommended for production workloads.

RESTORE REDUNDANCY

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The RESTORE REDUNDANCY command restores 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 Permissions Matrix for the required permissions.

Example

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

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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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