Private Static ReadonlyMIN_Private Static ReadonlyMAX_The floor gives way on a small budget: never more than this share of the
total. A heap- or ?cacheBudgetMB-scaled L1 can be far below 10 MB (40 MB
total gives ~8 MB), and a fixed floor there left the chunk segment at zero —
every L1 chunk rejected — with the segments together over the budget.
Private Static ReadonlyMETADATA_PrivatemetadataPrivatechunksPrivate ReadonlytotalConfigured total byte budget (metadata + chunks segments).
Private StaticisCheck if a key is a metadata file based on name pattern.
Segmented LRU with name-based routing: Metadata files go to a dedicated segment, data chunks go to the chunks segment. No frequency tracking needed.