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Cluster validation on Kyvos restart
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Cluster validation on Kyvos restart

Owned by Sarabjeet Kaur
Sep 06, 2024
2 min read

Applies to: Kyvos Enterprise  Kyvos Cloud (SaaS on AWS) Kyvos AWS Marketplace

Kyvos Azure Marketplace   Kyvos GCP Marketplace Kyvos Single Node Installation (Kyvos SNI)

Kyvos comes with a built-in validation framework, that performs the sanity test of the system (on every restart) and ensures that the system is ready to serve queries.

The framework runs checks, such as:

  • Runs sanity process (validation and process both).

  • Executes sanity queries to validate if the queries (for both MDX and SQL) are successfully served from the query engine.

  • Execute sanity queries (for both MDX and SQL ) to validate the result cache.

  • Notify the complete status of all the checks, and so on.

You can specify the name and type of the semantic model to be processed, the semantic model on which the queries should be executed, the number of queries to be executed, the type of queries to be executed, the type of cache to be validated, and so on.

To enable cluster validation on installation, perform the following steps.

  1. Navigate to /data/kyvos/app/kyvos/olapengine/conf folder.

  2. Open the clusterValidator.json file.

  3. In the Globals section, modify the following parameters as needed.

Parameter

Description

status

Enable or disable cluster validation on restart

timeToWaitInMinutes

Provide the time interval for which the system should wait until Query Engines are successfully initialized after the BI Server bootup

emailId

Email ID of the user who will be notified.

notifyOn

Set the value as success or failure. A notification will be sent to the email ID mentioned above.

detailsToCapture

Specify the details of events that you want to capture.

requiredDetails

Specify the details of logs to be captured in the following:

  • requiredDetails: Comma-separated list of items that you want to capture. In logs. For example, threadDump,buildLogs,outFile,processLogs

  • path: Provide the path where logs will be captured. For example: ../logs/BootupValidation/

  • backupFileLimit: The number of backup files to be maintained. The default value is 5. Whenever the system will try to capture logs on a BI server/Query engine for a cluster, it will check if the total number of files of cluster validation logs is exceeding the count of the configured threshold. If it exceeds, then the system will delete extra files by sorting them on the basis of the last-modified timestamp of those files.

QueryExecution status

Enable or disable the execution of queries during sanity testing. By default, the system will not execute queries on the configured semantic model.

cubeName

Name of the semantic model on which the queries are to be executed.

cubeID

For query execution enabled, cubeID is a mandatory field.

Filters

Provide filters to specify which queries to execute on the semantic model. If no filters are provided then the system will execute all the saved queries of the specified semantic model.

 

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