A subscription fetch inside a large inbound cost seconds because every
layer re-parsed the inbound's full settings JSON: getInboundsBySubId
preloaded the whole client_traffics table of each matched inbound,
matchingClients parsed all clients to filter by subId, and then every
per-protocol generator (raw links, JSON outbounds, Clash proxies) parsed
the blob again per link — once to find the client by email and once for
inbound-level fields like encryption or method. At 500k clients in one
inbound that was 13s per raw fetch and 8.5s per JSON fetch; at 100k,
2.6s/1.7s. After this change both cost ~70ms at 100k.
matchingClients now resolves through the indexed clients/client_inbounds
tables (ListForInboundBySubId, ordered by clients.id like ListForInbound
— the same source the running Xray users are built from), and the
per-request SubService carries two caches: clientsByInbound, primed by
matchingClients/inboundLinks so clientForLink resolves a client without
parsing settings (with the old full-parse as fallback, which also fixes
the export-all-links path that re-parsed the blob once per client), and
settingsByInbound, a once-per-request shallow decode that skips
materializing the clients array entirely. The ClientStats preload is
replaced by loading only the subscriber's traffic rows (indexed
clients.sub_id); statsForClient's per-email DB fallback (#5567) covers
any miss, and the case-insensitive email dedupe keeps the #5134
guarantee for case-differing duplicate rows.
MHSanaei
7c12700c7d