Configure Liveness and Readiness Probes

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The time-related parameters of the Liveness and Readiness probes can be configured through aggregatorSpec.readinessProbeSpec/livenessProbeSpec and leafSpec.readinessProbeSpec/livenessProbeSpec.

Note: Liveness probes have been deprecated as of Operator 3.0.96 and later.

YAML

aggregatorSpec:
  readinessProbeSpec:
    initialDelaySeconds: 10
    timeoutSeconds: 1
    periodSeconds: 10
    successThreshold: 1
    failureThreshold: 3
  livenessProbeSpec:
    initialDelaySeconds: 10
    timeoutSeconds: 1
    periodSeconds: 10
    successThreshold: 1
    failureThreshold: 3
leafSpec:
  readinessProbeSpec:
    initialDelaySeconds: 10
    timeoutSeconds: 1
    periodSeconds: 10
    successThreshold: 1
    failureThreshold: 3
  livenessProbeSpec:
    initialDelaySeconds: 10
    timeoutSeconds: 1
    periodSeconds: 10
    successThreshold: 1
    failureThreshold: 3

Refer to the Kubernetes documentation for more information about these attributes.

Configure Liveness Probe

The Operator can be configured to create liveness probes on the pods in the cluster. This feature attempts to restart a container if it fails a probe. This feature is off by default as thread, CPU, or PID exhaustion from database workloads can lead to restarts.

YAML

spec:
  enableLivenessProbeOnNodes: true

Last modified: April 9, 2026

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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.

(Optional) Run the following command to view the associated signature files.
Shell
```
curl undefined
```
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.
  Shell
```
curl -O undefined
```

After the signature file has been downloaded, run the following command to verify the authenticity of the SingleStore file.

Shell

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