Partitioning is based on the key name prefixes, although I hear they’ve done work to decouple that recently.
They may still use key names for partitioning. But they now randomly hash the user key name prefix on the back end to handle hotspots generated by similar keys.
They may still use key names for partitioning. But they now randomly hash the user key name prefix on the back end to handle hotspots generated by similar keys.