Lower the default scanner cache save timeout so the derived usage persistence budget stays inside the effective distributed publication lease window.
Add focused regressions for the default publication budget and bootstrap-pending observational baselines, and update operator docs with the new default.
Co-authored-by: heihutu <heihutu@gmail.com>
* refactor(data-usage): ReplicationStats -> ReplicationTargetUsage
Rename the data-usage crate's ReplicationStats to ReplicationTargetUsage.
Serde field names are byte-identical (only the Rust type name changed;
field identifiers that rmp encodes are untouched). An rmp round-trip test
guards against future drift.
Scanner test imports updated to match.
* style: cargo fmt
Split the 3655-line data_usage_define.rs (59% inline tests) into a
canonical foo.rs + foo/ module tree with zero behavior change:
- data_usage_define.rs (~950): cache constants and revision helpers,
the data-usage tree types, DataUsageCacheInfo with its hand-written
Serialize, the in-memory tree operations, dui, and marshal/unmarshal
- data_usage_define/persistence.rs (~580): the load/backup/restore
ladder (load, try_load_inner, revision_for_path) and the CAS save
path with its retry policy and save metrics
- data_usage_define/tests.rs (~2155): the inline test module as a child
module
All module paths are unchanged (the lib.rs data_usage_define::* glob
re-export and every crate::data_usage_define:: consumer resolve as
before). The hand-written map-encoded Serialize for
DataUsageCacheInfo is moved byte-for-byte per the AGENTS.md
cross-cutting invariant; on-disk names and the cache key format const
stay in the root. Four persistence helpers used by tests gain
pub(super), whose scope equals the old single-module privacy domain.
Code is moved verbatim apart from those markers, per-module import
headers, and rustfmt re-wraps.
Co-authored-by: heihutu <heihutu@gmail.com>
Zhengchao An