add multi concurrency (#57)

go.mod

@@ -33,6 +33,7 @@ replace (
 
 require (
 	github.com/Masterminds/sprig/v3 v3.2.3
+	github.com/alitto/pond v1.8.3
 	github.com/argoproj/gitops-engine v0.7.1-0.20230906152414-b0fffe419a0f
 	github.com/go-logr/logr v1.2.4
 	github.com/orcaman/concurrent-map/v2 v2.0.1

go.sum

@@ -83,6 +83,8 @@ github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751/go.mod h1:LOuy
 github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
 github.com/alecthomas/units v0.0.0-20190717042225-c3de453c63f4/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
 github.com/alecthomas/units v0.0.0-20190924025748-f65c72e2690d/go.mod h1:rBZYJk541a8SKzHPHnH3zbiI+7dagKZ0cgpgrD7Fyho=
+github.com/alitto/pond v1.8.3 h1:ydIqygCLVPqIX/USe5EaV/aSRXTRXDEI9JwuDdu+/xs=
+github.com/alitto/pond v1.8.3/go.mod h1:CmvIIGd5jKLasGI3D87qDkQxjzChdKMmnXMg3fG6M6Q=
 github.com/andreyvit/diff v0.0.0-20170406064948-c7f18ee00883 h1:bvNMNQO63//z+xNgfBlViaCIJKLlCJ6/fmUseuG0wVQ=
 github.com/andreyvit/diff v0.0.0-20170406064948-c7f18ee00883/go.mod h1:rCTlJbsFo29Kk6CurOXKm700vrz8f0KW0JNfpkRJY/8=
 github.com/antihax/optional v1.0.0/go.mod h1:uupD/76wgC+ih3iEmQUL+0Ugr19nfwCT1kdvxnR2qWY=
@@ -541,12 +543,6 @@ github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINE
 github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
 github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pkg/sftp v1.10.1/go.mod h1:lYOWFsE0bwd1+KfKJaKeuokY15vzFx25BLbzYYoAxZI=
-github.com/pluralsh/console-client-go v0.0.5 h1:+L7I3QLMWNBiuZlWe/YJfUMMZGnpKhEAlbs9sL+hiSc=
-github.com/pluralsh/console-client-go v0.0.5/go.mod h1:kZjk0pXAWnvyj+miXveCho4kKQaX1Tm3CGAM+iwurWU=
-github.com/pluralsh/console-client-go v0.0.8 h1:BwWOt1ggBX/fxzY2+01dk8sBTz1jqT57o2y1Iz9Zxzk=
-github.com/pluralsh/console-client-go v0.0.8/go.mod h1:kZjk0pXAWnvyj+miXveCho4kKQaX1Tm3CGAM+iwurWU=
-github.com/pluralsh/console-client-go v0.0.11 h1:2fchZE6qlSQmHTeuH54hAzJJpgKpx2Kbl8HhJNugbns=
-github.com/pluralsh/console-client-go v0.0.11/go.mod h1:kZjk0pXAWnvyj+miXveCho4kKQaX1Tm3CGAM+iwurWU=
 github.com/pluralsh/console-client-go v0.0.14 h1:vpvC6SR7A0MIrpeyR78hM6IreOLKgg+moRIEjyUnKZo=
 github.com/pluralsh/console-client-go v0.0.14/go.mod h1:kZjk0pXAWnvyj+miXveCho4kKQaX1Tm3CGAM+iwurWU=
 github.com/pluralsh/polly v0.1.4 h1:Kz90peCgvsfF3ERt8cujr5TR9z4wUlqQE60Eg09ZItY=

pkg/sync/loop.go

@@ -5,6 +5,7 @@ import (
 	"fmt"
 	"runtime/debug"
 
+	"github.com/alitto/pond"
 	"github.com/argoproj/gitops-engine/pkg/sync"
 	"github.com/argoproj/gitops-engine/pkg/sync/common"
 	"github.com/samber/lo"
@@ -27,18 +28,19 @@ func (engine *Engine) ControlLoop() {
 
 	wait.PollInfinite(syncDelay, func() (done bool, err error) {
 		log.Info("Polling for new service updates")
-
-		item, shutdown := engine.svcQueue.Get()
-		if shutdown {
-			return true, nil
-		}
-
-		if err := engine.processItem(item); err != nil {
-			log.Error(err, "found unprocessable error")
+		pool := pond.New(20, 100, pond.MinWorkers(20))
+		for i := 0; i < engine.svcQueue.Len(); i++ {
+			item, shutdown := engine.svcQueue.Get()
+			if shutdown {
+				return true, nil
+			}
+			pool.TrySubmit(func() {
+				if err := engine.processItem(item); err != nil {
+					log.Error(err, "found unprocessable error")
+				}
+			})
 		}
-
-		engine.syncing = ""
-
+		pool.StopAndWait()
 		return false, nil
 	})
 }