overtrue 9a2c3a0a1d feat(kms): record real cache hit, miss and eviction metrics ...

The metadata cache reported (entry_count, 0) because moka exposes no hit
or miss counts, so the miss half of every cache report was a constant.

Track lookups and removals in the cache itself: hit/miss counters on the
lookup path, a moka eviction listener classifying removals by cause, and
an entry gauge refreshed whenever the entry set changes. The counters are
exported through the metrics facade under the rustfs_kms_ prefix with
static label values only, matching the operation-policy metrics, and are
also returned as a KmsCacheStats snapshot in place of the old tuple.

Cache semantics are unchanged: capacity, TTL and invalidation points are
the same, and remove now flushes pending maintenance so the gauge and the
removal notification describe the cache the caller sees.

Refs rustfs/backlog#1584

2026-08-01 10:25:35 +08:00

..

kms_local_demo.rs

feat(kms): record real cache hit, miss and eviction metrics

2026-08-01 10:25:35 +08:00

kms_vault_kv_demo.rs

feat(kms): record real cache hit, miss and eviction metrics

2026-08-01 10:25:35 +08:00

local_kms_key_decrypt.rs

refactor(sse): decouple ecstore and harden KMS lifecycle (#5435)

2026-07-30 12:39:25 +08:00