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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.

show-aggregators

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Description

A convenience wrapper for running SELECT * FROM INFORMATION_SCHEMA.AGGREGATORS on the Master Aggregator on this host.

Returns a list of aggregators in the cluster. This command must be run from the same host that the Master Aggregator is on.

Refer to the Permissions Matrix for the required permissions.

Usage

Usage:
  memsqlctl show-aggregators [flags]

Flags:
  -h, --help   Help for show-aggregators

Global Flags:
  -c, --config FILE_PATH                     Path to the memsqctl config file
      --default-install-dir DIRECTORY_PATH   Path to the default install directory
      --insecure-ssl                         Fall back to insecure SSL connections to local nodes if memsqlctl is unable to otherwise establish a connection (ADVANCED)
  -j, --json                                 Print output in JSON format
      --node-metadata-file FILE_PATH         Path to the node metadata file
      --parallelism POSITIVE_INTEGER         Maximum amount of operations to be run in parallel
      --ssl-ca FILE_PATH                     The path to the CA certificate file (in PEM format) to authenticate the database certificate
      --timeout duration                     Maximum time for operation to complete (e.g., 30s, 10m, 1.5h)
      --verbose-json                         Print output in JSON format, include some warnings and user messages
  -v, --verbosity count                      Increase logging verbosity
  -y, --yes                                  Enable non-interactive mode and assume the user would like to move forward with the proposed actions by default

Remarks

  • This command is interactive unless you use either --yes or --json flag to override interactive behavior.

  • The memsqlctl show-aggregators command is equivalent to the sdb-admin show-aggregators command.

Output

The following is the standard output for the show-aggregators command.

sudo memsqlctl show-aggregators
+------------+------+--------+--------------------+------------------------------+-------------------+
|    Host    | Port | State  | Opened Connections | Average Roundtrip Latency ms | Master Aggregator |
+------------+------+--------+--------------------+------------------------------+-------------------+
| 172.17.0.2 | 3306 | online |0                   | null                         |1                  |
| 172.17.0.7 | 3307 | online |1                   | 10.089                       |0                  |
+------------+------+--------+--------------------+------------------------------+-------------------+

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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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