mirror of
https://github.com/PerpetualSoftware/pad.git
synced 2026-09-20 17:43:26 +00:00
xarmian
715ec70e94
NewRateLimiters spawned 9 ipRateLimiter cleanup goroutines per Server,
each in an unbounded `for { time.Sleep(5*time.Minute); ... }` loop with
no exit signal (middleware_ratelimit.go:78-89). Every testServer(t)
call leaked all 9, accumulating across the 210-test internal/server
suite. Under -race the goroutine count + sync overhead pushed the run
past the default 10m timeout, which is why the `Run tests with race
detector` step (gated to main pushes) has been failing on every main
run since the step was added on 2026-04-13.
This is the same flavor as BUG-842 part 2 (request-handler
fire-and-forget goroutines drained via Server.bg WaitGroup). The
rate-limiter case wasn't in BUG-842's scope: those goroutines are
spawned at construction time, not at request time, so they need a
different drain primitive.
Changes:
- ipRateLimiter gains stopCh + stopOnce + stopWg. cleanup() rewrites
its loop as a select over stopCh and a 5-minute ticker, deferring
stopWg.Done(). New Stop() closes stopCh once and waits for the
cleanup goroutine to return.
- RateLimiters gains a Stop() that walks all 9 limiters (nil-safe
via the (*ipRateLimiter).Stop receiver guard).
- Server.Stop() now also calls s.rateLimiters.Stop() after
s.bg.Wait(). Test cleanups already call Server.Stop() (added in
BUG-842), so no test-helper changes needed.
- New TestServer_Stop_DrainsRateLimiterCleanup pins the contract:
construct + Stop N servers, assert runtime.NumGoroutine() returns
to baseline ±3.
- .github/workflows/ci.yml: bump the -race timeout from the default
10m to 20m. The full server suite under -race takes ~13m on a dev
laptop after the leak fix; 20m gives margin without papering over
an actual hang. Both `Run tests with race detector` (SQLite) and
`Run tests with race detector against PostgreSQL` are bumped.
Verified locally: go test -race -timeout=1500s ./internal/server/
finishes ok in 776s (12m57s). Without the leak fix, the same command
times out at 600s (10m) with a goroutine dump showing hundreds of
ipRateLimiter.cleanup frames.