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fix(scanner): fence same-cycle caches with full activity coverage

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Keep structural baseline identity separate from the full activity coverage
required by bucket admission and set publication. Require complete set
coverage proofs while retaining revision CAS and epoch regression checks.

Co-Authored-By: heihutu <heihutu@gmail.com>
Co-Authored-By: zhi22915 <qiuzgang@gmail.com>
This commit is contained in:
houseme
2026-09-05 20:09:08 +08:00
parent 6c1d401215
commit e3fd1ae19a
9 changed files with 156 additions and 17 deletions
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crates/scanner/src/scanner_io/io_cache.rs
+5 -2
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@@ -125,8 +125,8 @@ impl ScannerIOCache for SetDisks {
pending_maintenance_work,
cache_cycle_floor,
} = scan_plan;
let bucket_work_digest = scanner_bucket_work_digest(bucket_coverage_digest, scan_mode, requires_full_scan);
let scan_plan_digest = scanner_bucket_work_digest(scan_plan_digest, scan_mode, requires_full_scan);
let bucket_work_digest = scanner_bucket_work_digest(bucket_coverage_digest, scan_mode, requires_full_scan);
let pool_label = self.pool_index.to_string();
let set_label = self.set_index.to_string();
@@ -165,8 +165,9 @@ impl ScannerIOCache for SetDisks {
scan_plan_digest,
},
);
let mut scoped_cache = scoped_scan.map(|prepared| {
let mut scoped_cache = scoped_scan.map(|mut prepared| {
buckets = prepared.buckets;
prepared.cache.info.scan_coverage_digest = Some(bucket_coverage_digest);
prepared.cache
});
if buckets.is_empty() {
@@ -182,6 +183,7 @@ impl ScannerIOCache for SetDisks {
tier_registry_generation: Some(tier_registry_generation),
source: Some(source),
scan_plan_digest: Some(scan_plan_digest),
scan_coverage_digest: Some(bucket_coverage_digest),
cache_key_format: DATA_USAGE_CACHE_KEY_FORMAT,
..Default::default()
},
@@ -469,6 +471,7 @@ impl ScannerIOCache for SetDisks {
source: Some(source),
snapshot_complete: false,
scan_plan_digest: Some(scan_plan_digest),
scan_coverage_digest: Some(bucket_coverage_digest),
cache_key_format: DATA_USAGE_CACHE_KEY_FORMAT,
lkg_snapshot_complete: old_cache.info.lkg_snapshot_complete,
lkg_next_cycle: old_cache.info.lkg_next_cycle,