https://github.com/3scale/3scale-operator/blob/7df449da0003f2fba72655eff462ffea9838f7d5/pkg/3scale/amp/auto-generated-templates/amp/amp-ha.yml#L2787-L2788

While the database is growing, it will take more time for sphinx to reindex the data.

So when the system-sphinx pod is redeployed those data are lost and reindexing is necessary.

The request is to make the system-sphinx-database persisted so there is no need to reindex the full database again on pod restart