pub fn resolve_arena_bytes_from(
raw: Option<&str>,
block_bytes: u64,
) -> Result<u64>Expand description
2026-09-25: Resolve METRALE_KV_PAGING_ARENA_GB, the peer arena size in GiB
(fractional accepted), floored to a multiple of block_bytes. Unset, non-finite,
not above 0, or smaller than one block is an error. The raw backend sizes its
arena to hold every group (RdmaKvBackend::connect); the paging arena has no
such size to derive, so it must be given.