shishengliang/lingniu-vehicle-ingest
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perf(go): cache identity binding lookups

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lingniu
2026-07-03 08:07:32 +08:00
parent 0b9e803139
commit 400047e08c
5 changed files with 83 additions and 4 deletions
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3
go/vehicle-gateway/cmd/gateway/main.go
View File

@@ -146,6 +146,7 @@ func buildIdentityResolver(ctx context.Context, logger *slog.Logger) (identity.R
table := env("VEHICLE_IDENTITY_TABLE", "vehicle_identity_binding")
resolver := identity.NewMySQLResolverWithOptions(db, table, identity.MySQLResolverOptions{
LocationTouchInterval: time.Duration(envInt("JT808_REGISTRATION_LOCATION_TOUCH_INTERVAL_SECONDS", 600)) * time.Second,
LookupCacheTTL: time.Duration(envInt("IDENTITY_LOOKUP_CACHE_TTL_SECONDS", 600)) * time.Second,
})
if envBool("IDENTITY_MYSQL_ENSURE_SCHEMA", true) {
if err := resolver.EnsureSchema(ctx); err != nil {
@@ -153,7 +154,7 @@ func buildIdentityResolver(ctx context.Context, logger *slog.Logger) (identity.R
return nil, nil, err
}
}
logger.Info("identity mysql resolver enabled", "table", table)
logger.Info("identity mysql resolver enabled", "table", table, "lookup_cache_ttl_seconds", envInt("IDENTITY_LOOKUP_CACHE_TTL_SECONDS", 600))
return resolver, func() { _ = db.Close() }, nil
}

14
go/vehicle-gateway/cmd/gateway/main_test.go
View File

@@ -1,6 +1,8 @@
package main
import (
"os"
"strings"
"testing"
"lingniu-vehicle-ingest/go/vehicle-gateway/internal/envelope"
@@ -32,6 +34,18 @@ func TestNATSSinkConfigFromEnvUsesExplicitSubjects(t *testing.T) {
}
}
func TestGatewayConfiguresIdentityLookupCacheTTL(t *testing.T) {
source, err := os.ReadFile("main.go")
if err != nil {
t.Fatalf("read main.go: %v", err)
}
for _, want := range []string{"LookupCacheTTL", "IDENTITY_LOOKUP_CACHE_TTL_SECONDS"} {
if !strings.Contains(string(source), want) {
t.Fatalf("gateway should expose identity lookup cache ttl, missing %s", want)
}
}
}
func TestNATSSinkConfigFromEnvDefaultsToGoSubjects(t *testing.T) {
t.Setenv("NATS_URL", "nats://172.17.111.56:4222")