Make puller pause configurable

lib/config/config.go

@@ -108,7 +108,9 @@ type FolderConfiguration struct {
 	Hashers               int                         `xml:"hashers" json:"hashers"` // Less than one sets the value to the number of cores. These are CPU bound due to hashing.
 	Order                 PullOrder                   `xml:"order" json:"order"`
 	IgnoreDelete          bool                        `xml:"ignoreDelete" json:"ignoreDelete"`
-	ScanProgressIntervalS int                         `xml:"scanProgressInterval" json:"scanProgressInterval"` // Set to a negative value to disable. Value of 0 will get replaced with value of 2 (default value)
+	ScanProgressIntervalS int                         `xml:"scanProgressIntervalS" json:"scanProgressIntervalS"` // Set to a negative value to disable. Value of 0 will get replaced with value of 2 (default value)
+	PullerSleepS          int                         `xml:"pullerSleepS" json:"pullerSleepS"`
+	PullerPauseS          int                         `xml:"pullerPauseS" json:"pullerPauseS"`
 
 	Invalid string `xml:"-" json:"invalid"` // Set at runtime when there is an error, not saved
 }

lib/model/rwfolder.go

@@ -30,12 +30,6 @@ import (
 
 // TODO: Stop on errors
 
-const (
-	pauseIntv     = 60 * time.Second
-	nextPullIntv  = 10 * time.Second
-	shortPullIntv = time.Second
-)
-
 // A pullBlockState is passed to the puller routine for each block that needs
 // to be fetched.
 type pullBlockState struct {
@@ -67,8 +61,10 @@ const (
 )
 
 const (
-	defaultCopiers = 1
+	defaultCopiers     = 1
-	defaultPullers = 16
+	defaultPullers     = 16
+	defaultPullerSleep = 10 * time.Second
+	defaultPullerPause = 60 * time.Second
 )
 
 type dbUpdateJob struct {
@@ -92,6 +88,8 @@ type rwFolder struct {
 	pullers     int
 	shortID     uint64
 	order       config.PullOrder
+	sleep       time.Duration
+	pause       time.Duration
 
 	stop        chan struct{}
 	queue       *jobQueue
@@ -128,7 +126,7 @@ func newRWFolder(m *Model, shortID uint64, cfg config.FolderConfiguration) *rwFo
 
 		stop:        make(chan struct{}),
 		queue:       newJobQueue(),
-		pullTimer:   time.NewTimer(shortPullIntv),
+		pullTimer:   time.NewTimer(time.Second),
 		scanTimer:   time.NewTimer(time.Millisecond), // The first scan should be done immediately.
 		delayScan:   make(chan time.Duration),
 		scanNow:     make(chan rescanRequest),
@@ -144,6 +142,18 @@ func newRWFolder(m *Model, shortID uint64, cfg config.FolderConfiguration) *rwFo
 		p.pullers = defaultPullers
 	}
 
+	if cfg.PullerPauseS == 0 {
+		p.pause = defaultPullerPause
+	} else {
+		p.pause = time.Duration(cfg.PullerPauseS) * time.Second
+	}
+
+	if cfg.PullerSleepS == 0 {
+		p.sleep = defaultPullerSleep
+	} else {
+		p.sleep = time.Duration(cfg.PullerSleepS) * time.Second
+	}
+
 	return p
 }
 
@@ -194,19 +204,13 @@ func (p *rwFolder) Serve() {
 
 		case <-p.remoteIndex:
 			prevVer = 0
-			p.pullTimer.Reset(shortPullIntv)
+			p.pullTimer.Reset(0)
 			l.Debugln(p, "remote index updated, rescheduling pull")
 
 		case <-p.pullTimer.C:
 			if !initialScanCompleted {
 				l.Debugln(p, "skip (initial)")
-				p.pullTimer.Reset(nextPullIntv)
+				p.pullTimer.Reset(p.sleep)
-				continue
-			}
-
-			if err := p.model.CheckFolderHealth(p.folder); err != nil {
-				l.Infoln("Skipping folder", p.folder, "pull due to folder error:", err)
-				p.pullTimer.Reset(nextPullIntv)
 				continue
 			}
 
@@ -226,7 +230,13 @@ func (p *rwFolder) Serve() {
 			curVer, ok := p.model.RemoteLocalVersion(p.folder)
 			if !ok || curVer == prevVer {
 				l.Debugln(p, "skip (curVer == prevVer)", prevVer, ok)
-				p.pullTimer.Reset(nextPullIntv)
+				p.pullTimer.Reset(p.sleep)
+				continue
+			}
+
+			if err := p.model.CheckFolderHealth(p.folder); err != nil {
+				l.Infoln("Skipping folder", p.folder, "pull due to folder error:", err)
+				p.pullTimer.Reset(p.sleep)
 				continue
 			}
 
@@ -260,8 +270,8 @@ func (p *rwFolder) Serve() {
 						curVer = lv
 					}
 					prevVer = curVer
-					l.Debugln(p, "next pull in", nextPullIntv)
+					l.Debugln(p, "next pull in", p.sleep)
-					p.pullTimer.Reset(nextPullIntv)
+					p.pullTimer.Reset(p.sleep)
 					break
 				}
 
@@ -270,8 +280,8 @@ func (p *rwFolder) Serve() {
 					// we're not making it. Probably there are write
 					// errors preventing us. Flag this with a warning and
 					// wait a bit longer before retrying.
-					l.Infof("Folder %q isn't making progress. Pausing puller for %v.", p.folder, pauseIntv)
+					l.Infof("Folder %q isn't making progress. Pausing puller for %v.", p.folder, p.pause)
-					l.Debugln(p, "next pull in", pauseIntv)
+					l.Debugln(p, "next pull in", p.pause)
 
 					if folderErrors := p.currentErrors(); len(folderErrors) > 0 {
 						events.Default.Log(events.FolderErrors, map[string]interface{}{
@@ -280,7 +290,7 @@ func (p *rwFolder) Serve() {
 						})
 					}
 
-					p.pullTimer.Reset(pauseIntv)
+					p.pullTimer.Reset(p.pause)
 					break
 				}
 			}