remove usage-interval flag

api.go

@@ -1061,12 +1061,12 @@ func (api *API) calculateUsage() {
 }
 
 // Periodically calculates disk usage
-func (api *API) RefreshUsageCache(refresh time.Duration) {
+func (api *API) RefreshUsageCache() {
 	trigger := make(chan bool)
 	defer close(trigger)
 	api.usageCache = &usageCache{
 		data:             make(map[string]NodeUsage),
-		refreshInterval:  refresh,
+		refreshInterval:  time.Hour,
 		resetTrigger:     trigger,
 		lastCalcDuration: 0,
 		waitMultiplier:   time.Duration(5),

ctl/server.go

@@ -110,7 +110,4 @@ func BuildServerFlags(cmd *cobra.Command, srv *server.Command) {
 	flags.DurationVar((*time.Duration)(&srv.Config.Postgres.WriteTimeout), "postgres.write-timeout", time.Duration(srv.Config.Postgres.WriteTimeout), "Timeout for writes on a postgres connection. (set 0 to disable)")
 	flags.Uint32Var(&srv.Config.Postgres.MaxStartupSize, "postgres.max-startup-size", srv.Config.Postgres.MaxStartupSize, "Maximum acceptable size of a postgres startup packet, in bytes. (set 0 to disable)")
 	flags.Uint16Var(&srv.Config.Postgres.ConnectionLimit, "postgres.connection-limit", srv.Config.Postgres.ConnectionLimit, "Maximum number of simultaneous postgres connections to allow. (set 0 to disable)")
-
-	// Disk/Memory Usage refresh rate in minutes for ui/usage http endpoint
-	flags.DurationVar((*time.Duration)(&srv.Config.Usage.Interval), "usage-interval", time.Duration(srv.Config.Usage.Interval), "Number in minutes between recalculations of disk/memory usage cache")
 }

server/config.go

@@ -224,11 +224,6 @@ type Config struct {
 
 	// LookupDBDSN is an external database to connect to for `ExternalLookup` queries.
 	LookupDBDSN string `toml:"lookup-db-dsn"`
-
-	// Disk Usage refresh interval for ui/usage http endpoint
-	Usage struct {
-		Interval toml.Duration `toml:"usage-interval"`
-	}
 }
 
 // MustValidate checks that all ports in a Config are unique and not zero.
@@ -364,8 +359,6 @@ func NewConfig() *Config {
 	c.Etcd.PeerCertFile = ""
 	c.Etcd.PeerKeyFile = ""
 
-	c.Usage.Interval = toml.Duration(6 * 60 * time.Minute) // 6 hours
-
 	return c
 }
 

server/server.go

@@ -277,7 +277,7 @@ func (m *Command) Start() (err error) {
 		}
 	}
 
-	go m.API.RefreshUsageCache(time.Duration(m.Config.Usage.Interval))
+	go m.API.RefreshUsageCache()
 
 	_ = testhook.Opened(pilosa.NewAuditor(), m, nil)
 	close(m.Started)