Added a few more comments to mtredisalize and unexport a few symbols.

cmd/mtredisalize/main.go

@@ -19,8 +19,8 @@ import (
 
 const (
 	defaultMaxBulkStringSize = 32 * 1024 * 1024
-	GCDuration               = "24h"
-	ChangeDuration           = "30s"
+	defaultGCDuration        = "24h"
+	defaultChangeDuration    = "30s"
 )
 
 func usage() {
@@ -55,9 +55,9 @@ func main() {
 	flag.BoolVar(&interleaved,
 		"interleaved", false, "Backend stores key in interleaved form.")
 	flag.StringVar(&gcDuration,
-		"gc-duration", GCDuration, "Duration between forced GCs.")
+		"gc-duration", defaultGCDuration, "Duration between forced GCs.")
 	flag.StringVar(&changeDuration,
-		"change-duration", ChangeDuration, "Duration to aggregate changes.")
+		"change-duration", defaultChangeDuration, "Duration to aggregate changes.")
 	flag.StringVar(&changeURL, "change-url", "", "URL to send changes to.")
 	flag.Int64Var(&maxBulkStringSize, "max-bulk-string-size", defaultMaxBulkStringSize,
 		"max size of a bulk string to be accepted as input (in bytes).")
@@ -76,7 +76,7 @@ func main() {
 		backend       Backend
 		gcDur         time.Duration
 		chDur         time.Duration
-		changeTracker *ChangeTracker
+		changeTracker *changeTracker
 	)
 
 	if gcDur, err = time.ParseDuration(gcDuration); err != nil {
@@ -94,7 +94,7 @@ func main() {
 			log.Fatal(err)
 		}
 		changeChan = time.Tick(chDur)
-		changeTracker = NewChangeTracker()
+		changeTracker = newChangeTracker()
 	} else {
 		// We will never receive ticks on this.
 		changeChan = make(<-chan time.Time)