nits

Signed-off-by: Krasi Georgiev <8903888+krasi-georgiev@users.noreply.github.com>

cmd/thanos/query-frontend.go

@@ -126,7 +126,7 @@ func runQueryFrontend(
 		MaxCacheFreshness:   cfg.Limits.MaxCacheFreshness,
 	}, nil)
 	if err != nil {
-		return errors.Wrap(err, "initialiase limits")
+		return errors.Wrap(err, "initialize limits")
 	}
 
 	codec := queryfrontend.NewThanosCodec(cfg.partialResponseStrategy)

docs/components/query-frontend.md

@@ -90,7 +90,7 @@ It uses the cortex cache module so supports all that is supported there.
 
 ### Slow Query Log
 
-Query Frontend supports `--query-frontend.log_queries_longer_than` flag to log queries running longer then some duration.
+Query Frontend supports `--query-frontend.log_queries_longer_than` flag to log queries running longer than some duration.
 
 ## Naming
 

pkg/queryfrontend/config.go

@@ -35,6 +35,9 @@ type QueryRange struct {
 // Validate validates the config.
 func (cfg *QueryRange) Validate() error {
 	if cfg.ResultsCacheConfig != (queryrange.ResultsCacheConfig{}) {
+		if cfg.SplitQueriesByInterval <= 0 {
+			return errors.New("split queries interval should be greater then 0")
+		}
 		if err := cfg.ResultsCacheConfig.CacheConfig.Validate(); err != nil {
 			return errors.Wrap(err, "invalid ResultsCache config")
 		}
@@ -50,7 +53,10 @@ type Config struct {
 
 // Validate validates the config.
 func (cfg *Config) Validate() error {
-	err := errors.Wrapf(cfg.QueryRange.Validate(), "query range config validation")
-	err = errors.Wrapf(cfg.Frontend.Validate(), "frontend config validation")
+	err := errors.Wrap(cfg.QueryRange.Validate(), "query range config validation")
+	if err != nil {
+		return err
+	}
+	err = errors.Wrap(cfg.Frontend.Validate(), "frontend config validation")
 	return err
 }

scripts/cfggen/main.go

@@ -106,7 +106,7 @@ func main() {
 		os.Exit(1)
 	}
 
-	if err := generate([]cache.Config{cache.Config{}}, "frontend_cache", *outputDir); err != nil {
+	if err := generate([]cache.Config{{}}, "frontend_cache", *outputDir); err != nil {
 		level.Error(logger).Log("msg", "failed to generate", "type", "frontend_cache", "err", err)
 		os.Exit(1)
 	}