Abstract: A process for facilitating downscaling of datastores (e.g., in a stateful system) is described herein. In embodiments, a set of metrics associated with a set of data stores of a stateful service is obtained. The set of metrics may indicate a utilization of each of the data stores of the set of data stores. Based on the set of metrics indicating underutilization associated with at least a portion of the set of data stores, a determination is made to initiate a downscaling of the set of data stores. Thereafter, a downscaler is deployed to perform downscaling operations to downscale the set of data stores. The downscaler communicates with a first data store to replicate data of the first data store onto a second data store. Based on identifying that the downscaler has completed the downscaling operations to downscale the set of data stores, the downscaler is terminated.