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router: add singleflight deduplication for concurrent narinfo races

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Signed-off-by: NotAShelf <raf@notashelf.dev>
Change-Id: Ib682889f34ad4ad4fb331ee2924dc9916a6a6964
This commit is contained in:
raf 2026-03-06 19:44:24 +03:00
commit 41b18dd1f8
Signed by: NotAShelf
GPG key ID: 29D95B64378DB4BF
8 changed files with 90 additions and 18 deletions
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4
internal/server/integration_test.go
View file

@ -38,7 +38,7 @@ func TestRouteReuseOnSecondRequest(t *testing.T) {
p := prober.New(0.3)
p.RecordLatency(upstream.URL, 10)
r := router.New(db, p, time.Hour, 5*time.Second)
r := router.New(db, p, time.Hour, 5*time.Second, 10*time.Minute)
ts := httptest.NewServer(server.New(r, p, []config.UpstreamConfig{{URL: upstream.URL}}))
defer ts.Close()
@ -78,7 +78,7 @@ func TestUpstreamFailoverFallback(t *testing.T) {
p.RecordLatency(bad.URL, 1) // bad appears fastest
p.RecordLatency(good.URL, 50)
r := router.New(db, p, time.Hour, 5*time.Second)
r := router.New(db, p, time.Hour, 5*time.Second, 10*time.Minute)
ts := httptest.NewServer(server.New(r, p, []config.UpstreamConfig{
{URL: bad.URL},
{URL: good.URL},

4
internal/server/server_test.go
View file

@ -39,7 +39,7 @@ func makeTestServer(t *testing.T, upstreams ...string) *httptest.Server {
upsCfg[i] = config.UpstreamConfig{URL: u}
}
r := router.New(db, p, time.Hour, 5*time.Second)
r := router.New(db, p, time.Hour, 5*time.Second, 10*time.Minute)
return httptest.NewServer(server.New(r, p, upsCfg))
}
@ -311,7 +311,7 @@ func TestNARFallbackWhenFirstUpstreamMissing(t *testing.T) {
p.RecordLatency(hasIt.URL, 50)
upsCfg := []config.UpstreamConfig{{URL: missing.URL}, {URL: hasIt.URL}}
r := router.New(db, p, time.Hour, 5*time.Second)
r := router.New(db, p, time.Hour, 5*time.Second, 10*time.Minute)
ts := httptest.NewServer(server.New(r, p, upsCfg))
defer ts.Close()