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4. Are key resources being overused?

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.

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The next step in troubleshooting your cluster is looking at key resources to see if they are being overused.

  1. For a quick sanity check, navigate to the Studio Dashboard to look at resource usage against their respective totals available by hovering over each.

    In Studio dashboard, total memory usage, total disk usage, rows read, and rows written can be shown under Cluster Usage.

  2. Check the Studio Hosts and/or Nodes pages to look at CPU and memory usage.

    CPU and Memory usage of each node can be seen on Nodes page in Studio.

  3. Sort on CPU Usage, Memory Usage, and Disk Usage. Are there resources being overused?

  4. If you see one or more resources approaching their limit (e.g., memory, disk, or CPU limits), consider the following:

    • Have you added a new workload to your cluster that is using more resources?

    • Have you loaded more data (on disk, or in memory)?

    • Have you increased concurrency?

    • Does your workload require more nodes to meet the scale?

    • Is there an expensive workload or query that is causing a spike and could be optimized?

Next Steps

  • If you identify one or more key resources being overused: return to Step 1, to identify whether there are specific queries causing this.

  • If the cause is not specific queries, or there are no resource usage issues: continue to Step 5.

Last modified: September 10, 2024

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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