[YUNIKORN-2924] [core] Remove occupiedResource handling logic (#984)

Closes: #984

Signed-off-by: Peter Bacsko <bacskop@gmail.com>

go.mod

@@ -22,7 +22,7 @@ module github.com/apache/yunikorn-core
 go 1.21
 
 require (
-	github.com/apache/yunikorn-scheduler-interface v0.0.0-20240924203603-aaf51c93d3a0
+	github.com/apache/yunikorn-scheduler-interface v0.0.0-20241016105739-f0e241aa0146
 	github.com/google/btree v1.1.2
 	github.com/google/go-cmp v0.6.0
 	github.com/google/uuid v1.6.0

go.sum

@@ -1,5 +1,5 @@
-github.com/apache/yunikorn-scheduler-interface v0.0.0-20240924203603-aaf51c93d3a0 h1:/9j0YXuifvoOl4YVEbO0r+DPkkYLzaQ+/ac+xCc7SY8=
-github.com/apache/yunikorn-scheduler-interface v0.0.0-20240924203603-aaf51c93d3a0/go.mod h1:co3uU98sj1CUTPNTM13lTyi+CY0DOgDndDW2KiUjktU=
+github.com/apache/yunikorn-scheduler-interface v0.0.0-20241016105739-f0e241aa0146 h1:CZ4U7y19YSxNJVBNox3DahhuoxDL++naBl/kj+kqVFc=
+github.com/apache/yunikorn-scheduler-interface v0.0.0-20241016105739-f0e241aa0146/go.mod h1:co3uU98sj1CUTPNTM13lTyi+CY0DOgDndDW2KiUjktU=
 github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
 github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
 github.com/cespare/xxhash/v2 v2.3.0 h1:UL815xU9SqsFlibzuggzjXhog7bL6oX9BbNZnL2UFvs=

pkg/scheduler/context.go

@@ -661,9 +661,6 @@ func (cc *ClusterContext) updateNode(nodeInfo *si.NodeInfo) {
 		if sr := nodeInfo.SchedulableResource; sr != nil {
 			partition.updatePartitionResource(node.SetCapacity(resources.NewResourceFromProto(sr)))
 		}
-		if or := nodeInfo.OccupiedResource; or != nil {
-			node.SetOccupiedResource(resources.NewResourceFromProto(or))
-		}
 	case si.NodeInfo_DRAIN_NODE:
 		if node.IsSchedulable() {
 			// set the state to not schedulable

pkg/scheduler/context_test.go

@@ -100,7 +100,6 @@ func TestContext_UpdateNode(t *testing.T) {
 		SchedulableResource: &si.Resource{Resources: map[string]*si.Quantity{"first": {Value: 10}}},
 	}
 	full := resources.NewResourceFromMap(map[string]resources.Quantity{"first": 10})
-	half := resources.NewResourceFromMap(map[string]resources.Quantity{"first": 5})
 	partition := context.GetPartition(pName)
 	if partition == nil {
 		t.Fatalf("partition should have been found")
@@ -121,15 +120,9 @@ func TestContext_UpdateNode(t *testing.T) {
 	assert.Assert(t, resources.Equals(full, partition.GetTotalPartitionResource()), "partition resource should be updated")
 	// try to update: fail due to unknown action
 	n.SchedulableResource = &si.Resource{Resources: map[string]*si.Quantity{"first": {Value: 5}}}
-	n.OccupiedResource = &si.Resource{Resources: map[string]*si.Quantity{"first": {Value: 5}}}
 	context.updateNode(n)
 	node := partition.GetNode("test-1")
 	assert.Assert(t, resources.Equals(full, node.GetAvailableResource()), "node available resource should not be updated")
-	n.Action = si.NodeInfo_UPDATE
-	context.updateNode(n)
-	assert.Assert(t, resources.Equals(half, partition.GetTotalPartitionResource()), "partition resource should be updated")
-	assert.Assert(t, resources.IsZero(node.GetAvailableResource()), "node available should have been updated to zero")
-	assert.Assert(t, resources.Equals(half, node.GetOccupiedResource()), "node occupied should have been updated")
 
 	// other actions
 	n = &si.NodeInfo{

pkg/scheduler/objects/node.go

@@ -73,7 +73,7 @@ func NewNode(proto *si.NodeInfo) *Node {
 		reservations:      make(map[string]*reservation),
 		totalResource:     resources.NewResourceFromProto(proto.SchedulableResource),
 		allocatedResource: resources.NewResource(),
-		occupiedResource:  resources.NewResourceFromProto(proto.OccupiedResource),
+		occupiedResource:  resources.NewResource(),
 		allocations:       make(map[string]*Allocation),
 		schedulable:       true,
 		listeners:         make([]NodeListener, 0),

pkg/scheduler/objects/node_test.go

@@ -41,14 +41,14 @@ func TestNewNode(t *testing.T) {
 	if node != nil {
 		t.Error("node not returned correctly: node is nul or incorrect name")
 	}
-	proto := newProto(testNode, nil, nil, nil)
+	proto := newProto(testNode, nil, nil)
 	node = NewNode(proto)
 	if node == nil || node.NodeID != testNode {
 		t.Error("node not returned correctly: node is nul or incorrect name")
 	}
 
 	totalRes := resources.NewResourceFromMap(map[string]resources.Quantity{"first": 100, "second": 100})
-	proto = newProto(testNode, totalRes, nil, map[string]string{})
+	proto = newProto(testNode, totalRes, map[string]string{})
 	node = NewNode(proto)
 	if node == nil || node.NodeID != testNode {
 		t.Fatal("node not returned correctly: node is nul or incorrect name")
@@ -74,25 +74,20 @@ func TestNewNode(t *testing.T) {
 	assert.Equal(t, "rack1", node.Rackname)
 	assert.Equal(t, "partition1", node.Partition)
 
-	// test capacity/available/occupied resources
+	// test capacity/available resources
 	totalResources := resources.NewResourceFromMap(map[string]resources.Quantity{"first": 100, "second": 100})
-	occupiedResources := resources.NewResourceFromMap(map[string]resources.Quantity{"first": 30, "second": 20})
 	availableResources := resources.NewResourceFromMap(map[string]resources.Quantity{"first": 70, "second": 80})
-	proto = newProto(testNode, totalResources, occupiedResources, map[string]string{})
+	proto = newProto(testNode, totalResources, map[string]string{})
 	node = NewNode(proto)
 	assert.Equal(t, node.NodeID, testNode, "node not returned correctly: node is nul or incorrect name")
 	if !resources.Equals(node.GetCapacity(), totalResources) {
 		t.Errorf("node total resources not set correctly: %v expected got %v",
 			totalResources, node.GetCapacity())
 	}
-	if !resources.Equals(node.GetAvailableResource(), availableResources) {
+	if !resources.Equals(node.GetAvailableResource(), totalResources) {
 		t.Errorf("node available resources not set correctly: %v expected got %v",
 			availableResources, node.GetAvailableResource())
 	}
-	if !resources.Equals(node.GetOccupiedResource(), occupiedResources) {
-		t.Errorf("node occupied resources not set correctly: %v expected got %v",
-			occupiedResources, node.GetOccupiedResource())
-	}
 }
 
 func TestCheckConditions(t *testing.T) {
@@ -328,7 +323,7 @@ func TestAttributes(t *testing.T) {
 		testname := fmt.Sprintf("Attributes in the node %d", index)
 		t.Run(testname, func(t *testing.T) {
 			nodename := fmt.Sprintf("%s-%d", testNode, index)
-			node := NewNode(newProto(nodename, nil, nil, tt.inputs))
+			node := NewNode(newProto(nodename, nil, tt.inputs))
 			if node == nil || node.NodeID != nodename {
 				t.Error("node not returned correctly: node is nul or incorrect name")
 			}
@@ -363,7 +358,7 @@ func TestAttributes(t *testing.T) {
 }
 
 func TestGetInstanceType(t *testing.T) {
-	proto := newProto(testNode, nil, nil, map[string]string{
+	proto := newProto(testNode, nil, map[string]string{
 		common.NodePartition: "partition1",
 		"label1":             "key1",
 		"label2":             "key2",
@@ -789,8 +784,7 @@ func TestAddRemoveListener(t *testing.T) {
 func TestNodeEvents(t *testing.T) {
 	mockEvents := evtMock.NewEventSystem()
 	total := resources.NewResourceFromMap(map[string]resources.Quantity{"cpu": 100, "memory": 100})
-	occupied := resources.NewResourceFromMap(map[string]resources.Quantity{"cpu": 10, "memory": 10})
-	proto := newProto(testNode, total, occupied, map[string]string{
+	proto := newProto(testNode, total, map[string]string{
 		"ready": "true",
 	})
 	node := NewNode(proto)
@@ -905,8 +899,7 @@ func TestPreconditions(t *testing.T) {
 
 	plugins.RegisterSchedulerPlugin(mock.NewPredicatePlugin(true, map[string]int{}))
 	total := resources.NewResourceFromMap(map[string]resources.Quantity{"cpu": 100, "memory": 100})
-	occupied := resources.NewResourceFromMap(map[string]resources.Quantity{"cpu": 10, "memory": 10})
-	proto := newProto(testNode, total, occupied, map[string]string{
+	proto := newProto(testNode, total, map[string]string{
 		"ready": "true",
 	})
 	res := resources.NewResourceFromMap(map[string]resources.Quantity{"first": 1})

pkg/scheduler/objects/nodesorting_test.go

@@ -166,13 +166,13 @@ func TestSortPolicyWeighting(t *testing.T) {
 	nc.SetNodeSortingPolicy(fair)
 	totalRes := resources.NewResourceFromMap(map[string]resources.Quantity{"vcore": 2000, "memory": 16000})
 
-	proto1 := newProto("test1", totalRes, nil, map[string]string{})
+	proto1 := newProto("test1", totalRes, map[string]string{})
 	node1 := NewNode(proto1)
 	if err := nc.AddNode(node1); err != nil {
 		t.Fatal("Failed to add node1")
 	}
 
-	proto2 := newProto("test2", totalRes, nil, map[string]string{})
+	proto2 := newProto("test2", totalRes, map[string]string{})
 	node2 := NewNode(proto2)
 	if err := nc.AddNode(node2); err != nil {
 		t.Fatal("Failed to add node2")
@@ -232,13 +232,13 @@ func TestSortPolicy(t *testing.T) {
 	nc.SetNodeSortingPolicy(bp)
 	totalRes := resources.NewResourceFromMap(map[string]resources.Quantity{"vcore": 2000, "memory": 4000})
 
-	proto1 := newProto("test1", totalRes, nil, map[string]string{})
+	proto1 := newProto("test1", totalRes, map[string]string{})
 	node1 := NewNode(proto1)
 	if err := nc.AddNode(node1); err != nil {
 		t.Fatal("Failed to add node1")
 	}
 
-	proto2 := newProto("test2", totalRes, nil, map[string]string{})
+	proto2 := newProto("test2", totalRes, map[string]string{})
 	node2 := NewNode(proto2)
 	if err := nc.AddNode(node2); err != nil {
 		t.Fatal("Failed to add node2")
@@ -313,7 +313,7 @@ func TestAbsResourceUsage(t *testing.T) {
 	nc.SetNodeSortingPolicy(fair)
 	totalRes := resources.NewResourceFromMap(map[string]resources.Quantity{"vcore": 0, "memory": 16000})
 
-	proto1 := newProto("test1", totalRes, nil, map[string]string{})
+	proto1 := newProto("test1", totalRes, map[string]string{})
 	node1 := NewNode(proto1)
 	if err := nc.AddNode(node1); err != nil {
 		t.Fatal("Failed to add node1")

pkg/scheduler/objects/utilities_test.go

@@ -188,7 +188,7 @@ func newNodeInternal(nodeID string, total, occupied *resources.Resource) *Node {
 	return sn
 }
 
-func newProto(nodeID string, totalResource, occupiedResource *resources.Resource, attributes map[string]string) *si.NodeInfo {
+func newProto(nodeID string, totalResource *resources.Resource, attributes map[string]string) *si.NodeInfo {
 	proto := si.NodeInfo{
 		NodeID:     nodeID,
 		Attributes: attributes,
@@ -204,15 +204,6 @@ func newProto(nodeID string, totalResource, occupiedResource *resources.Resource
 		}
 	}
 
-	if occupiedResource != nil {
-		proto.OccupiedResource = &si.Resource{
-			Resources: map[string]*si.Quantity{},
-		}
-		for name, value := range occupiedResource.Resources {
-			quantity := si.Quantity{Value: int64(value)}
-			proto.OccupiedResource.Resources[name] = &quantity
-		}
-	}
 	return &proto
 }
 

pkg/scheduler/tests/operation_test.go

@@ -564,97 +564,6 @@ partitions:
 	}
 }
 
-func TestUpdateNodeOccupiedResources(t *testing.T) {
-	// Register RM
-	configData := `
-partitions:
-  -
-    name: default
-    queues:
-      - name: root
-        submitacl: "*"
-        queues:
-          - name: a
-            resources:
-              max:
-                memory: 150
-                vcore: 20
-`
-	// Start all tests
-	ms := &mockScheduler{}
-	defer ms.Stop()
-
-	err := ms.Init(configData, false, false)
-	assert.NilError(t, err, "RegisterResourceManager failed")
-
-	// Check queues of cache and scheduler.
-	partitionInfo := ms.scheduler.GetClusterContext().GetPartition("[rm:123]default")
-	assert.Assert(t, partitionInfo.GetTotalPartitionResource() == nil, "partition info max resource nil")
-
-	// Register a node
-	err = ms.proxy.UpdateNode(&si.NodeRequest{
-		Nodes: []*si.NodeInfo{
-			{
-				NodeID:     "node-1:1234",
-				Attributes: map[string]string{},
-				SchedulableResource: &si.Resource{
-					Resources: map[string]*si.Quantity{
-						"memory": {Value: 100},
-						"vcore":  {Value: 10},
-					},
-				},
-				Action: si.NodeInfo_CREATE,
-			},
-		},
-		RmID: "rm:123",
-	})
-
-	assert.NilError(t, err, "NodeRequest failed")
-
-	// Wait until node is registered
-	context := ms.scheduler.GetClusterContext()
-	ms.mockRM.waitForAcceptedNode(t, "node-1:1234", 1000)
-	waitForNewNode(t, context, "node-1:1234", "[rm:123]default", 1000)
-
-	// verify node capacity
-	assert.Equal(t, len(partitionInfo.GetNodes()), 1)
-	node1 := partitionInfo.GetNode("node-1:1234")
-	assert.Equal(t, int64(node1.GetCapacity().Resources[common.Memory]), int64(100))
-	schedulingNode1 := ms.scheduler.GetClusterContext().
-		GetNode("node-1:1234", "[rm:123]default")
-	assert.Equal(t, int64(schedulingNode1.GetAllocatedResource().Resources[common.Memory]), int64(0))
-	assert.Equal(t, int64(schedulingNode1.GetAvailableResource().Resources[common.Memory]), int64(100))
-
-	// update node capacity
-	err = ms.proxy.UpdateNode(&si.NodeRequest{
-		Nodes: []*si.NodeInfo{
-			{
-				NodeID:     "node-1:1234",
-				Attributes: map[string]string{},
-				OccupiedResource: &si.Resource{
-					Resources: map[string]*si.Quantity{
-						"memory": {Value: 80},
-						"vcore":  {Value: 5},
-					},
-				},
-				Action: si.NodeInfo_UPDATE,
-			},
-		},
-		RmID: "rm:123",
-	})
-
-	assert.NilError(t, err, "NodeRequest failed")
-
-	waitForAvailableNodeResource(t, ms.scheduler.GetClusterContext(), "[rm:123]default",
-		[]string{"node-1:1234"}, 20, 1000)
-	assert.Equal(t, int64(node1.GetCapacity().Resources[common.Memory]), int64(100))
-	assert.Equal(t, int64(node1.GetCapacity().Resources[common.CPU]), int64(10))
-	assert.Equal(t, int64(node1.GetOccupiedResource().Resources[common.Memory]), int64(80))
-	assert.Equal(t, int64(node1.GetOccupiedResource().Resources[common.CPU]), int64(5))
-	assert.Equal(t, int64(schedulingNode1.GetAllocatedResource().Resources[common.Memory]), int64(0))
-	assert.Equal(t, int64(schedulingNode1.GetAvailableResource().Resources[common.Memory]), int64(20))
-}
-
 func TestForeignPodResourceUsage(t *testing.T) {
 	// Register RM
 	configData := `

pkg/scheduler/utilities_test.go

@@ -647,20 +647,15 @@ func newAllocationAskPreempt(allocKey, appID string, prio int32, res *resources.
 	})
 }
 
-func newNodeWithResources(nodeID string, max, occupied *resources.Resource) *objects.Node {
+func newNodeMaxResource(nodeID string, max *resources.Resource) *objects.Node {
 	proto := &si.NodeInfo{
 		NodeID:              nodeID,
 		Attributes:          map[string]string{},
 		SchedulableResource: max.ToProto(),
-		OccupiedResource:    occupied.ToProto(),
 	}
 	return objects.NewNode(proto)
 }
 
-func newNodeMaxResource(nodeID string, max *resources.Resource) *objects.Node {
-	return newNodeWithResources(nodeID, max, nil)
-}
-
 // partition with an expected basic queue hierarchy
 // root -> parent -> leaf1
 //