The Index Health Check is designed to assess and validate if your Jira index is in a good state.
The Indes Health Check looks at the following parameters:
This Health Check determines whether your Jira index is consistent, and there are two levels of consistency check:
Basic - verifies that the current index state matches the reported total number of issues in the instance
Advanced - will perform the Basic consistency and also check that the total number of issues in the index and the total number of archived issues matches the total number of issues reported by the database
You can control and configure which index check is used by default.