Johnathan Corgan f374370e5c Cache architecture: identity fix, cache merge, parent-change flush ...

Identity cache: remove TTL-based expiry (60s TTL broke active sessions
after expiry since handle_tun_outbound checks identity_cache before
session table). Replace with LRU-only eviction bounded by configurable
identity_size (default 10K). Lookup now touches timestamp for LRU
freshness.

Cache merge: unify coord_cache and route_cache into single coordinate
cache. Both stored NodeAddr→TreeCoordinate; the layer distinction was
conceptual, not functional. Discovery-sourced entries now get the same
TTL+refresh treatment as session-sourced entries. Simplifies
find_next_hop() to single cache lookup.

Parent-change flush: clear coord_cache after recompute_coords() in both
parent-switch paths of handle_tree_announce(). Stale coordinates after
tree reconvergence cause dead-end routing that's more expensive than
re-discovery.

Tested: 493 unit tests passed, clippy clean, Docker mesh 20/20,
Docker chain 6/6.

2026-02-16 22:56:34 +00:00

..

coord_cache.rs

Fix transit node coord_cache expiry breaking multi-hop routing

2026-02-16 12:41:45 +00:00

entry.rs

Split cache.rs and config.rs into directory modules, create utils/

2026-02-15 17:56:32 +00:00

mod.rs

Cache architecture: identity fix, cache merge, parent-change flush

2026-02-16 22:56:34 +00:00