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Upgrading to Elasticsearch version 7.17.13 is crucial to fix known vulnerabilities and improve the security and stability of Sunbird Knowlg. Following these steps will help achieve a seamless upgrade, reducing risks related to vulnerable software.
Reference
Please Refer the following page for detailed instructions on how to perform backup and restoration procedures in both Azure and local environments.
https://project-sunbird.atlassian.net/wiki/spaces/SBDES/pages/edit-v2/3446112295?draftShareId=45602440-9fac-4b02-adae-97985c705c36