NotAShelf/ncro
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cache: add negative cache; router: skip race for cached 404s

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Signed-off-by: NotAShelf <raf@notashelf.dev>
Change-Id: Ibeb44b313850395898bb20f2d947b0b76a6a6964
This commit is contained in:
raf 2026-03-06 21:30:24 +03:00
commit b0ea022dc2
Signed by: NotAShelf
GPG key ID: 29D95B64378DB4BF
7 changed files with 147 additions and 4 deletions
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5
internal/config/config.go
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@ -52,6 +52,7 @@ type CacheConfig struct {
DBPath string `yaml:"db_path"`
MaxEntries int `yaml:"max_entries"`
TTL Duration `yaml:"ttl"`
NegativeTTL Duration `yaml:"negative_ttl"`
LatencyAlpha float64 `yaml:"latency_alpha"`
}
@ -96,6 +97,7 @@ func defaults() Config {
DBPath: "/var/lib/ncro/routes.db",
MaxEntries: 100000,
TTL: Duration{time.Hour},
NegativeTTL: Duration{10 * time.Minute},
LatencyAlpha: 0.3,
},
Mesh: MeshConfig{
@ -134,6 +136,9 @@ func (c *Config) Validate() error {
if c.Cache.TTL.Duration <= 0 {
return fmt.Errorf("cache.ttl must be positive")
}
if c.Cache.NegativeTTL.Duration <= 0 {
return fmt.Errorf("cache.negative_ttl must be positive")
}
if c.Cache.MaxEntries <= 0 {
return fmt.Errorf("cache.max_entries must be positive")
}