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feat(stdiscosrv): configurable desired not-found rate

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This commit is contained in:
Jakob Borg
2025-04-12 17:18:06 +02:00
parent b5ffd0a796
commit b4776ea4e0
3 changed files with 12 additions and 11 deletions
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6
cmd/stdiscosrv/apisrv.go
View File

@@ -66,7 +66,7 @@ type contextKey int
const idKey contextKey = iota
func newAPISrv(addr string, cert tls.Certificate, db database, repl replicator, useHTTP, compression bool) *apiSrv {
func newAPISrv(addr string, cert tls.Certificate, db database, repl replicator, useHTTP, compression bool, desiredNotFoundRate float64) *apiSrv {
return &apiSrv{
addr: addr,
cert: cert,
@@ -77,13 +77,13 @@ func newAPISrv(addr string, cert tls.Certificate, db database, repl replicator,
seenTracker: &retryAfterTracker{
name: "seenTracker",
bucketStarts: time.Now(),
desiredRate: 250,
desiredRate: desiredNotFoundRate / 2,
currentDelay: notFoundRetryUnknownMinSeconds,
},
notSeenTracker: &retryAfterTracker{
name: "notSeenTracker",
bucketStarts: time.Now(),
desiredRate: 250,
desiredRate: desiredNotFoundRate / 2,
currentDelay: notFoundRetryUnknownMaxSeconds / 2,
},
}

2
cmd/stdiscosrv/apisrv_test.go
View File

@@ -111,7 +111,7 @@ func BenchmarkAPIRequests(b *testing.B) {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
go db.Serve(ctx)
api := newAPISrv("127.0.0.1:0", tls.Certificate{}, db, nil, true, true)
api := newAPISrv("127.0.0.1:0", tls.Certificate{}, db, nil, true, true, 1000)
srv := httptest.NewServer(http.HandlerFunc(api.handler))
kf := b.TempDir() + "/cert"

15
cmd/stdiscosrv/main.go
View File

@@ -60,12 +60,13 @@ const (
var debug = false
type CLI struct {
Cert string `group:"Listen" help:"Certificate file" default:"./cert.pem" env:"DISCOVERY_CERT_FILE"`
Key string `group:"Listen" help:"Key file" default:"./key.pem" env:"DISCOVERY_KEY_FILE"`
HTTP bool `group:"Listen" help:"Listen on HTTP (behind an HTTPS proxy)" env:"DISCOVERY_HTTP"`
Compression bool `group:"Listen" help:"Enable GZIP compression of responses" env:"DISCOVERY_COMPRESSION"`
Listen string `group:"Listen" help:"Listen address" default:":8443" env:"DISCOVERY_LISTEN"`
MetricsListen string `group:"Listen" help:"Metrics listen address" env:"DISCOVERY_METRICS_LISTEN"`
Cert string `group:"Listen" help:"Certificate file" default:"./cert.pem" env:"DISCOVERY_CERT_FILE"`
Key string `group:"Listen" help:"Key file" default:"./key.pem" env:"DISCOVERY_KEY_FILE"`
HTTP bool `group:"Listen" help:"Listen on HTTP (behind an HTTPS proxy)" env:"DISCOVERY_HTTP"`
Compression bool `group:"Listen" help:"Enable GZIP compression of responses" env:"DISCOVERY_COMPRESSION"`
Listen string `group:"Listen" help:"Listen address" default:":8443" env:"DISCOVERY_LISTEN"`
MetricsListen string `group:"Listen" help:"Metrics listen address" env:"DISCOVERY_METRICS_LISTEN"`
DesiredNotFoundRate float64 `group:"Listen" help:"Desired maximum rate of not-found replies (/s)" default:"1000"`
DBDir string `group:"Database" help:"Database directory" default:"." env:"DISCOVERY_DB_DIR"`
DBFlushInterval time.Duration `group:"Database" help:"Interval between database flushes" default:"5m" env:"DISCOVERY_DB_FLUSH_INTERVAL"`
@@ -149,7 +150,7 @@ func main() {
}
// Start the main API server.
qs := newAPISrv(cli.Listen, cert, db, repl, cli.HTTP, cli.Compression)
qs := newAPISrv(cli.Listen, cert, db, repl, cli.HTTP, cli.Compression, cli.DesiredNotFoundRate)
main.Add(qs)
// If we have a metrics port configured, start a metrics handler.