[YUNIKORN-1656] Extend si.EventRecord type (#90)

Closes: #90

Signed-off-by: Craig Condit <ccondit@apache.org>
diff --git a/lib/go/si/si.pb.go b/lib/go/si/si.pb.go
index ae55a6d..6d68476 100644
--- a/lib/go/si/si.pb.go
+++ b/lib/go/si/si.pb.go
@@ -53,7 +53,7 @@
 	return proto.EnumName(TerminationType_name, int32(x))
 }
 func (TerminationType) EnumDescriptor() ([]byte, []int) {
-	return fileDescriptor_si_d721e6078e2aa9e7, []int{0}
+	return fileDescriptor_si_05e8f7c1c0594b5d, []int{0}
 }
 
 // Action from RM
@@ -97,7 +97,7 @@
 	return proto.EnumName(NodeInfo_ActionFromRM_name, int32(x))
 }
 func (NodeInfo_ActionFromRM) EnumDescriptor() ([]byte, []int) {
-	return fileDescriptor_si_d721e6078e2aa9e7, []int{24, 0}
+	return fileDescriptor_si_05e8f7c1c0594b5d, []int{24, 0}
 }
 
 // container scheduling states
@@ -136,7 +136,7 @@
 	return proto.EnumName(UpdateContainerSchedulingStateRequest_SchedulingState_name, int32(x))
 }
 func (UpdateContainerSchedulingStateRequest_SchedulingState) EnumDescriptor() ([]byte, []int) {
-	return fileDescriptor_si_d721e6078e2aa9e7, []int{29, 0}
+	return fileDescriptor_si_05e8f7c1c0594b5d, []int{29, 0}
 }
 
 type EventRecord_Type int32
@@ -169,7 +169,36 @@
 	return proto.EnumName(EventRecord_Type_name, int32(x))
 }
 func (EventRecord_Type) EnumDescriptor() ([]byte, []int) {
-	return fileDescriptor_si_d721e6078e2aa9e7, []int{31, 0}
+	return fileDescriptor_si_05e8f7c1c0594b5d, []int{31, 0}
+}
+
+type EventRecord_ChangeType int32
+
+const (
+	EventRecord_NONE   EventRecord_ChangeType = 0
+	EventRecord_SET    EventRecord_ChangeType = 1
+	EventRecord_ADD    EventRecord_ChangeType = 2
+	EventRecord_REMOVE EventRecord_ChangeType = 3
+)
+
+var EventRecord_ChangeType_name = map[int32]string{
+	0: "NONE",
+	1: "SET",
+	2: "ADD",
+	3: "REMOVE",
+}
+var EventRecord_ChangeType_value = map[string]int32{
+	"NONE":   0,
+	"SET":    1,
+	"ADD":    2,
+	"REMOVE": 3,
+}
+
+func (x EventRecord_ChangeType) String() string {
+	return proto.EnumName(EventRecord_ChangeType_name, int32(x))
+}
+func (EventRecord_ChangeType) EnumDescriptor() ([]byte, []int) {
+	return fileDescriptor_si_05e8f7c1c0594b5d, []int{31, 1}
 }
 
 type RegisterResourceManagerRequest struct {
@@ -197,7 +226,7 @@
 func (m *RegisterResourceManagerRequest) String() string { return proto.CompactTextString(m) }
 func (*RegisterResourceManagerRequest) ProtoMessage()    {}
 func (*RegisterResourceManagerRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_si_d721e6078e2aa9e7, []int{0}
+	return fileDescriptor_si_05e8f7c1c0594b5d, []int{0}
 }
 func (m *RegisterResourceManagerRequest) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_RegisterResourceManagerRequest.Unmarshal(m, b)
@@ -270,7 +299,7 @@
 func (m *RegisterResourceManagerResponse) String() string { return proto.CompactTextString(m) }
 func (*RegisterResourceManagerResponse) ProtoMessage()    {}
 func (*RegisterResourceManagerResponse) Descriptor() ([]byte, []int) {
-	return fileDescriptor_si_d721e6078e2aa9e7, []int{1}
+	return fileDescriptor_si_05e8f7c1c0594b5d, []int{1}
 }
 func (m *RegisterResourceManagerResponse) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_RegisterResourceManagerResponse.Unmarshal(m, b)
@@ -306,7 +335,7 @@
 func (m *AllocationRequest) String() string { return proto.CompactTextString(m) }
 func (*AllocationRequest) ProtoMessage()    {}
 func (*AllocationRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_si_d721e6078e2aa9e7, []int{2}
+	return fileDescriptor_si_05e8f7c1c0594b5d, []int{2}
 }
 func (m *AllocationRequest) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_AllocationRequest.Unmarshal(m, b)
@@ -364,7 +393,7 @@
 func (m *ApplicationRequest) String() string { return proto.CompactTextString(m) }
 func (*ApplicationRequest) ProtoMessage()    {}
 func (*ApplicationRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_si_d721e6078e2aa9e7, []int{3}
+	return fileDescriptor_si_05e8f7c1c0594b5d, []int{3}
 }
 func (m *ApplicationRequest) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_ApplicationRequest.Unmarshal(m, b)
@@ -419,7 +448,7 @@
 func (m *NodeRequest) String() string { return proto.CompactTextString(m) }
 func (*NodeRequest) ProtoMessage()    {}
 func (*NodeRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_si_d721e6078e2aa9e7, []int{4}
+	return fileDescriptor_si_05e8f7c1c0594b5d, []int{4}
 }
 func (m *NodeRequest) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_NodeRequest.Unmarshal(m, b)
@@ -472,7 +501,7 @@
 func (m *AllocationResponse) String() string { return proto.CompactTextString(m) }
 func (*AllocationResponse) ProtoMessage()    {}
 func (*AllocationResponse) Descriptor() ([]byte, []int) {
-	return fileDescriptor_si_d721e6078e2aa9e7, []int{5}
+	return fileDescriptor_si_05e8f7c1c0594b5d, []int{5}
 }
 func (m *AllocationResponse) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_AllocationResponse.Unmarshal(m, b)
@@ -536,7 +565,7 @@
 func (m *ApplicationResponse) String() string { return proto.CompactTextString(m) }
 func (*ApplicationResponse) ProtoMessage()    {}
 func (*ApplicationResponse) Descriptor() ([]byte, []int) {
-	return fileDescriptor_si_d721e6078e2aa9e7, []int{6}
+	return fileDescriptor_si_05e8f7c1c0594b5d, []int{6}
 }
 func (m *ApplicationResponse) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_ApplicationResponse.Unmarshal(m, b)
@@ -591,7 +620,7 @@
 func (m *NodeResponse) String() string { return proto.CompactTextString(m) }
 func (*NodeResponse) ProtoMessage()    {}
 func (*NodeResponse) Descriptor() ([]byte, []int) {
-	return fileDescriptor_si_d721e6078e2aa9e7, []int{7}
+	return fileDescriptor_si_05e8f7c1c0594b5d, []int{7}
 }
 func (m *NodeResponse) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_NodeResponse.Unmarshal(m, b)
@@ -643,7 +672,7 @@
 func (m *UpdatedApplication) String() string { return proto.CompactTextString(m) }
 func (*UpdatedApplication) ProtoMessage()    {}
 func (*UpdatedApplication) Descriptor() ([]byte, []int) {
-	return fileDescriptor_si_d721e6078e2aa9e7, []int{8}
+	return fileDescriptor_si_05e8f7c1c0594b5d, []int{8}
 }
 func (m *UpdatedApplication) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_UpdatedApplication.Unmarshal(m, b)
@@ -705,7 +734,7 @@
 func (m *RejectedApplication) String() string { return proto.CompactTextString(m) }
 func (*RejectedApplication) ProtoMessage()    {}
 func (*RejectedApplication) Descriptor() ([]byte, []int) {
-	return fileDescriptor_si_d721e6078e2aa9e7, []int{9}
+	return fileDescriptor_si_05e8f7c1c0594b5d, []int{9}
 }
 func (m *RejectedApplication) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_RejectedApplication.Unmarshal(m, b)
@@ -751,7 +780,7 @@
 func (m *AcceptedApplication) String() string { return proto.CompactTextString(m) }
 func (*AcceptedApplication) ProtoMessage()    {}
 func (*AcceptedApplication) Descriptor() ([]byte, []int) {
-	return fileDescriptor_si_d721e6078e2aa9e7, []int{10}
+	return fileDescriptor_si_05e8f7c1c0594b5d, []int{10}
 }
 func (m *AcceptedApplication) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_AcceptedApplication.Unmarshal(m, b)
@@ -792,7 +821,7 @@
 func (m *RejectedNode) String() string { return proto.CompactTextString(m) }
 func (*RejectedNode) ProtoMessage()    {}
 func (*RejectedNode) Descriptor() ([]byte, []int) {
-	return fileDescriptor_si_d721e6078e2aa9e7, []int{11}
+	return fileDescriptor_si_05e8f7c1c0594b5d, []int{11}
 }
 func (m *RejectedNode) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_RejectedNode.Unmarshal(m, b)
@@ -838,7 +867,7 @@
 func (m *AcceptedNode) String() string { return proto.CompactTextString(m) }
 func (*AcceptedNode) ProtoMessage()    {}
 func (*AcceptedNode) Descriptor() ([]byte, []int) {
-	return fileDescriptor_si_d721e6078e2aa9e7, []int{12}
+	return fileDescriptor_si_05e8f7c1c0594b5d, []int{12}
 }
 func (m *AcceptedNode) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_AcceptedNode.Unmarshal(m, b)
@@ -877,7 +906,7 @@
 func (m *Resource) String() string { return proto.CompactTextString(m) }
 func (*Resource) ProtoMessage()    {}
 func (*Resource) Descriptor() ([]byte, []int) {
-	return fileDescriptor_si_d721e6078e2aa9e7, []int{13}
+	return fileDescriptor_si_05e8f7c1c0594b5d, []int{13}
 }
 func (m *Resource) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_Resource.Unmarshal(m, b)
@@ -916,7 +945,7 @@
 func (m *Quantity) String() string { return proto.CompactTextString(m) }
 func (*Quantity) ProtoMessage()    {}
 func (*Quantity) Descriptor() ([]byte, []int) {
-	return fileDescriptor_si_d721e6078e2aa9e7, []int{14}
+	return fileDescriptor_si_05e8f7c1c0594b5d, []int{14}
 }
 func (m *Quantity) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_Quantity.Unmarshal(m, b)
@@ -985,7 +1014,7 @@
 func (m *AllocationAsk) String() string { return proto.CompactTextString(m) }
 func (*AllocationAsk) ProtoMessage()    {}
 func (*AllocationAsk) Descriptor() ([]byte, []int) {
-	return fileDescriptor_si_d721e6078e2aa9e7, []int{15}
+	return fileDescriptor_si_05e8f7c1c0594b5d, []int{15}
 }
 func (m *AllocationAsk) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_AllocationAsk.Unmarshal(m, b)
@@ -1103,7 +1132,7 @@
 func (m *PreemptionPolicy) String() string { return proto.CompactTextString(m) }
 func (*PreemptionPolicy) ProtoMessage()    {}
 func (*PreemptionPolicy) Descriptor() ([]byte, []int) {
-	return fileDescriptor_si_d721e6078e2aa9e7, []int{16}
+	return fileDescriptor_si_05e8f7c1c0594b5d, []int{16}
 }
 func (m *PreemptionPolicy) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_PreemptionPolicy.Unmarshal(m, b)
@@ -1168,7 +1197,7 @@
 func (m *AddApplicationRequest) String() string { return proto.CompactTextString(m) }
 func (*AddApplicationRequest) ProtoMessage()    {}
 func (*AddApplicationRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_si_d721e6078e2aa9e7, []int{17}
+	return fileDescriptor_si_05e8f7c1c0594b5d, []int{17}
 }
 func (m *AddApplicationRequest) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_AddApplicationRequest.Unmarshal(m, b)
@@ -1258,7 +1287,7 @@
 func (m *RemoveApplicationRequest) String() string { return proto.CompactTextString(m) }
 func (*RemoveApplicationRequest) ProtoMessage()    {}
 func (*RemoveApplicationRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_si_d721e6078e2aa9e7, []int{18}
+	return fileDescriptor_si_05e8f7c1c0594b5d, []int{18}
 }
 func (m *RemoveApplicationRequest) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_RemoveApplicationRequest.Unmarshal(m, b)
@@ -1306,7 +1335,7 @@
 func (m *UserGroupInformation) String() string { return proto.CompactTextString(m) }
 func (*UserGroupInformation) ProtoMessage()    {}
 func (*UserGroupInformation) Descriptor() ([]byte, []int) {
-	return fileDescriptor_si_d721e6078e2aa9e7, []int{19}
+	return fileDescriptor_si_05e8f7c1c0594b5d, []int{19}
 }
 func (m *UserGroupInformation) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_UserGroupInformation.Unmarshal(m, b)
@@ -1371,7 +1400,7 @@
 func (m *Allocation) String() string { return proto.CompactTextString(m) }
 func (*Allocation) ProtoMessage()    {}
 func (*Allocation) Descriptor() ([]byte, []int) {
-	return fileDescriptor_si_d721e6078e2aa9e7, []int{20}
+	return fileDescriptor_si_05e8f7c1c0594b5d, []int{20}
 }
 func (m *Allocation) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_Allocation.Unmarshal(m, b)
@@ -1475,7 +1504,7 @@
 func (m *AllocationReleasesRequest) String() string { return proto.CompactTextString(m) }
 func (*AllocationReleasesRequest) ProtoMessage()    {}
 func (*AllocationReleasesRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_si_d721e6078e2aa9e7, []int{21}
+	return fileDescriptor_si_05e8f7c1c0594b5d, []int{21}
 }
 func (m *AllocationReleasesRequest) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_AllocationReleasesRequest.Unmarshal(m, b)
@@ -1535,7 +1564,7 @@
 func (m *AllocationRelease) String() string { return proto.CompactTextString(m) }
 func (*AllocationRelease) ProtoMessage()    {}
 func (*AllocationRelease) Descriptor() ([]byte, []int) {
-	return fileDescriptor_si_d721e6078e2aa9e7, []int{22}
+	return fileDescriptor_si_05e8f7c1c0594b5d, []int{22}
 }
 func (m *AllocationRelease) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_AllocationRelease.Unmarshal(m, b)
@@ -1619,7 +1648,7 @@
 func (m *AllocationAskRelease) String() string { return proto.CompactTextString(m) }
 func (*AllocationAskRelease) ProtoMessage()    {}
 func (*AllocationAskRelease) Descriptor() ([]byte, []int) {
-	return fileDescriptor_si_d721e6078e2aa9e7, []int{23}
+	return fileDescriptor_si_05e8f7c1c0594b5d, []int{23}
 }
 func (m *AllocationAskRelease) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_AllocationAskRelease.Unmarshal(m, b)
@@ -1698,7 +1727,7 @@
 func (m *NodeInfo) String() string { return proto.CompactTextString(m) }
 func (*NodeInfo) ProtoMessage()    {}
 func (*NodeInfo) Descriptor() ([]byte, []int) {
-	return fileDescriptor_si_d721e6078e2aa9e7, []int{24}
+	return fileDescriptor_si_05e8f7c1c0594b5d, []int{24}
 }
 func (m *NodeInfo) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_NodeInfo.Unmarshal(m, b)
@@ -1775,7 +1804,7 @@
 func (m *RejectedAllocationAsk) String() string { return proto.CompactTextString(m) }
 func (*RejectedAllocationAsk) ProtoMessage()    {}
 func (*RejectedAllocationAsk) Descriptor() ([]byte, []int) {
-	return fileDescriptor_si_d721e6078e2aa9e7, []int{25}
+	return fileDescriptor_si_05e8f7c1c0594b5d, []int{25}
 }
 func (m *RejectedAllocationAsk) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_RejectedAllocationAsk.Unmarshal(m, b)
@@ -1833,7 +1862,7 @@
 func (m *PredicatesArgs) String() string { return proto.CompactTextString(m) }
 func (*PredicatesArgs) ProtoMessage()    {}
 func (*PredicatesArgs) Descriptor() ([]byte, []int) {
-	return fileDescriptor_si_d721e6078e2aa9e7, []int{26}
+	return fileDescriptor_si_05e8f7c1c0594b5d, []int{26}
 }
 func (m *PredicatesArgs) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_PredicatesArgs.Unmarshal(m, b)
@@ -1892,7 +1921,7 @@
 func (m *PreemptionPredicatesArgs) String() string { return proto.CompactTextString(m) }
 func (*PreemptionPredicatesArgs) ProtoMessage()    {}
 func (*PreemptionPredicatesArgs) Descriptor() ([]byte, []int) {
-	return fileDescriptor_si_d721e6078e2aa9e7, []int{27}
+	return fileDescriptor_si_05e8f7c1c0594b5d, []int{27}
 }
 func (m *PreemptionPredicatesArgs) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_PreemptionPredicatesArgs.Unmarshal(m, b)
@@ -1954,7 +1983,7 @@
 func (m *PreemptionPredicatesResponse) String() string { return proto.CompactTextString(m) }
 func (*PreemptionPredicatesResponse) ProtoMessage()    {}
 func (*PreemptionPredicatesResponse) Descriptor() ([]byte, []int) {
-	return fileDescriptor_si_d721e6078e2aa9e7, []int{28}
+	return fileDescriptor_si_05e8f7c1c0594b5d, []int{28}
 }
 func (m *PreemptionPredicatesResponse) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_PreemptionPredicatesResponse.Unmarshal(m, b)
@@ -2006,7 +2035,7 @@
 func (m *UpdateContainerSchedulingStateRequest) String() string { return proto.CompactTextString(m) }
 func (*UpdateContainerSchedulingStateRequest) ProtoMessage()    {}
 func (*UpdateContainerSchedulingStateRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_si_d721e6078e2aa9e7, []int{29}
+	return fileDescriptor_si_05e8f7c1c0594b5d, []int{29}
 }
 func (m *UpdateContainerSchedulingStateRequest) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_UpdateContainerSchedulingStateRequest.Unmarshal(m, b)
@@ -2072,7 +2101,7 @@
 func (m *UpdateConfigurationRequest) String() string { return proto.CompactTextString(m) }
 func (*UpdateConfigurationRequest) ProtoMessage()    {}
 func (*UpdateConfigurationRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_si_d721e6078e2aa9e7, []int{30}
+	return fileDescriptor_si_05e8f7c1c0594b5d, []int{30}
 }
 func (m *UpdateConfigurationRequest) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_UpdateConfigurationRequest.Unmarshal(m, b)
@@ -2125,25 +2154,22 @@
 	Type EventRecord_Type `protobuf:"varint,1,opt,name=type,proto3,enum=si.v1.EventRecord_Type" json:"type,omitempty"`
 	// ID of the object associated with the event
 	ObjectID string `protobuf:"bytes,2,opt,name=objectID,proto3" json:"objectID,omitempty"`
-	// the group this object belongs to
-	// it specifies the application ID for allocations and the queue for applications
-	GroupID string `protobuf:"bytes,3,opt,name=groupID,proto3" json:"groupID,omitempty"`
-	// the reason of this event
-	Reason string `protobuf:"bytes,4,opt,name=reason,proto3" json:"reason,omitempty"`
 	// the detailed message as string
 	Message string `protobuf:"bytes,5,opt,name=message,proto3" json:"message,omitempty"`
 	// timestamp of the event
-	TimestampNano        int64    `protobuf:"varint,6,opt,name=timestampNano,proto3" json:"timestampNano,omitempty"`
-	XXX_NoUnkeyedLiteral struct{} `json:"-"`
-	XXX_unrecognized     []byte   `json:"-"`
-	XXX_sizecache        int32    `json:"-"`
+	TimestampNano int64 `protobuf:"varint,6,opt,name=timestampNano,proto3" json:"timestampNano,omitempty"`
+	// the type of the change
+	EventChangeType      EventRecord_ChangeType `protobuf:"varint,7,opt,name=eventChangeType,proto3,enum=si.v1.EventRecord_ChangeType" json:"eventChangeType,omitempty"`
+	XXX_NoUnkeyedLiteral struct{}               `json:"-"`
+	XXX_unrecognized     []byte                 `json:"-"`
+	XXX_sizecache        int32                  `json:"-"`
 }
 
 func (m *EventRecord) Reset()         { *m = EventRecord{} }
 func (m *EventRecord) String() string { return proto.CompactTextString(m) }
 func (*EventRecord) ProtoMessage()    {}
 func (*EventRecord) Descriptor() ([]byte, []int) {
-	return fileDescriptor_si_d721e6078e2aa9e7, []int{31}
+	return fileDescriptor_si_05e8f7c1c0594b5d, []int{31}
 }
 func (m *EventRecord) XXX_Unmarshal(b []byte) error {
 	return xxx_messageInfo_EventRecord.Unmarshal(m, b)
@@ -2177,20 +2203,6 @@
 	return ""
 }
 
-func (m *EventRecord) GetGroupID() string {
-	if m != nil {
-		return m.GroupID
-	}
-	return ""
-}
-
-func (m *EventRecord) GetReason() string {
-	if m != nil {
-		return m.Reason
-	}
-	return ""
-}
-
 func (m *EventRecord) GetMessage() string {
 	if m != nil {
 		return m.Message
@@ -2205,6 +2217,13 @@
 	return 0
 }
 
+func (m *EventRecord) GetEventChangeType() EventRecord_ChangeType {
+	if m != nil {
+		return m.EventChangeType
+	}
+	return EventRecord_NONE
+}
+
 var E_SiSecret = &proto.ExtensionDesc{
 	ExtendedType:  (*descriptorpb.FieldOptions)(nil),
 	ExtensionType: (*bool)(nil),
@@ -2259,6 +2278,7 @@
 	proto.RegisterEnum("si.v1.NodeInfo_ActionFromRM", NodeInfo_ActionFromRM_name, NodeInfo_ActionFromRM_value)
 	proto.RegisterEnum("si.v1.UpdateContainerSchedulingStateRequest_SchedulingState", UpdateContainerSchedulingStateRequest_SchedulingState_name, UpdateContainerSchedulingStateRequest_SchedulingState_value)
 	proto.RegisterEnum("si.v1.EventRecord_Type", EventRecord_Type_name, EventRecord_Type_value)
+	proto.RegisterEnum("si.v1.EventRecord_ChangeType", EventRecord_ChangeType_name, EventRecord_ChangeType_value)
 	proto.RegisterExtension(E_SiSecret)
 }
 
@@ -2547,149 +2567,153 @@
 }
 
 func init() {
-	proto.RegisterFile("yunikorn-scheduler-interface/si.proto", fileDescriptor_si_d721e6078e2aa9e7)
+	proto.RegisterFile("yunikorn-scheduler-interface/si.proto", fileDescriptor_si_05e8f7c1c0594b5d)
 }
 
-var fileDescriptor_si_d721e6078e2aa9e7 = []byte{
-	// 2238 bytes of a gzipped FileDescriptorProto
-	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xb4, 0x59, 0x4f, 0x73, 0x1b, 0x49,
-	0x15, 0xcf, 0x48, 0xb2, 0x2d, 0x3d, 0x39, 0xf6, 0xa4, 0xed, 0x24, 0x13, 0x61, 0x12, 0x33, 0xac,
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-	0xf4, 0x27, 0x2d, 0x69, 0x61, 0xb9, 0xb8, 0xc6, 0xa3, 0xb6, 0x32, 0xb1, 0x34, 0xa3, 0xed, 0x9e,
-	0xc9, 0xc6, 0x45, 0x71, 0xe4, 0xbc, 0xc5, 0x89, 0xa2, 0x8a, 0x1b, 0x55, 0x1c, 0x39, 0x71, 0xe2,
-	0xc4, 0x91, 0x0f, 0x00, 0x7c, 0x02, 0x4e, 0x1c, 0xb8, 0x71, 0xa7, 0xba, 0xa7, 0xe7, 0x9f, 0x66,
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+	0x35, 0x7f, 0x59, 0x58, 0x96, 0xd9, 0x9c, 0xd1, 0x68, 0x31, 0xb7, 0xc8, 0x38, 0xe4, 0x5f, 0x95,
+	0xd9, 0x96, 0x81, 0xa8, 0x01, 0xdb, 0xe4, 0xb5, 0x45, 0x3d, 0xcb, 0x9e, 0xc4, 0xdb, 0xc8, 0xc2,
+	0xaa, 0xcb, 0x76, 0x16, 0xba, 0xfa, 0x43, 0xd8, 0x5a, 0xda, 0xe3, 0x3b, 0x95, 0xb7, 0x9f, 0xb3,
+	0x0b, 0x46, 0x64, 0x5c, 0x54, 0x85, 0xcb, 0xc3, 0xce, 0x93, 0x4e, 0xf7, 0xc7, 0x9d, 0xe3, 0x7a,
+	0x63, 0xd0, 0xea, 0x76, 0x8e, 0x1f, 0xe0, 0x6e, 0xfb, 0x18, 0xb7, 0xd5, 0x0f, 0x10, 0x40, 0xa1,
+	0x81, 0x8d, 0xfa, 0xc0, 0x50, 0x25, 0xf6, 0x3d, 0xec, 0x35, 0xd9, 0x77, 0x0e, 0x6d, 0x02, 0x34,
+	0x71, 0xbd, 0xd5, 0x39, 0xee, 0x74, 0x9b, 0x86, 0x2a, 0xa3, 0x2d, 0xa8, 0x34, 0x8d, 0x46, 0xb7,
+	0xdd, 0xea, 0xf7, 0x5b, 0xdd, 0x8e, 0xaa, 0x20, 0x0d, 0x76, 0x7c, 0xc0, 0xa0, 0x7b, 0xdc, 0x6f,
+	0x3c, 0x32, 0x9a, 0xc3, 0xa7, 0xf5, 0xa3, 0xa7, 0x86, 0x9a, 0xd7, 0x7f, 0x06, 0x97, 0x32, 0x2f,
+	0xeb, 0xef, 0xf5, 0x0a, 0x10, 0x5d, 0xae, 0xe4, 0xc4, 0xe5, 0xea, 0x25, 0x6c, 0xf6, 0x5c, 0x32,
+	0x66, 0x40, 0x42, 0xeb, 0xae, 0xdf, 0x17, 0xaf, 0xb1, 0x6a, 0x14, 0xc6, 0xb9, 0x44, 0x18, 0x57,
+	0xa1, 0x24, 0x80, 0x7e, 0x7b, 0x56, 0xc2, 0xe1, 0x58, 0xff, 0xbd, 0x04, 0x5a, 0xac, 0x19, 0x7d,
+	0x9f, 0xcb, 0xde, 0x86, 0x4b, 0xa2, 0x67, 0xae, 0xc7, 0xf1, 0xfe, 0x91, 0x28, 0xe3, 0xec, 0x49,
+	0xd6, 0xba, 0x53, 0xcf, 0x74, 0xbd, 0x96, 0x3d, 0x26, 0xaf, 0x79, 0xcc, 0xe7, 0x71, 0x8c, 0xa2,
+	0x77, 0x60, 0x37, 0x4b, 0xdf, 0xf0, 0xd9, 0x41, 0x83, 0x22, 0x5d, 0x8c, 0x46, 0x84, 0x52, 0xd1,
+	0x3f, 0x07, 0x43, 0x16, 0x6c, 0x16, 0x17, 0x9a, 0xe3, 0x42, 0xfd, 0x81, 0xfe, 0xe7, 0x1c, 0xec,
+	0xfb, 0x8f, 0x08, 0x0d, 0xc7, 0xf6, 0x4c, 0xcb, 0x26, 0x6e, 0xbc, 0x47, 0x33, 0xbd, 0xf0, 0x15,
+	0xeb, 0x06, 0x6c, 0x0a, 0xff, 0xb9, 0x89, 0xb6, 0x6a, 0x89, 0x9a, 0xb6, 0x5a, 0x2e, 0xcb, 0x6a,
+	0x38, 0x78, 0x7f, 0x90, 0x79, 0x6a, 0xb9, 0x9f, 0x78, 0x61, 0x79, 0x8b, 0x2a, 0xb5, 0x65, 0xb2,
+	0x78, 0xbd, 0x88, 0x02, 0x4a, 0x49, 0x04, 0x14, 0x81, 0xad, 0x25, 0x0e, 0xb4, 0x0b, 0x5a, 0x70,
+	0x9e, 0x44, 0xe4, 0xb7, 0x3a, 0x0f, 0x8f, 0xfb, 0x03, 0x76, 0x72, 0x3e, 0x40, 0x15, 0x28, 0xf6,
+	0x9f, 0xb4, 0x7a, 0x3d, 0xa3, 0xa9, 0x4a, 0xe8, 0x02, 0x94, 0x05, 0xc4, 0x68, 0xaa, 0x39, 0xb4,
+	0x01, 0x25, 0x6c, 0xf4, 0x0d, 0xfc, 0xdc, 0x68, 0xaa, 0x32, 0x3b, 0x6f, 0x0f, 0xea, 0x2d, 0x36,
+	0xa3, 0xe8, 0xdf, 0xe5, 0xa0, 0x1a, 0xea, 0x7f, 0x6a, 0x4d, 0x16, 0x6e, 0xa2, 0x2b, 0xcd, 0x78,
+	0xde, 0x5b, 0xe3, 0x5d, 0x3b, 0x7a, 0x83, 0x56, 0x12, 0x6f, 0xd0, 0x83, 0xe4, 0x1b, 0xb4, 0x7f,
+	0x55, 0x38, 0x5c, 0xb6, 0x62, 0x4a, 0x8b, 0xb7, 0xbc, 0x3f, 0xff, 0x97, 0x2f, 0xc8, 0x8f, 0x95,
+	0x92, 0xa4, 0xe6, 0x70, 0xd1, 0xd7, 0x91, 0xea, 0xbf, 0x90, 0xa1, 0x62, 0xbc, 0x22, 0xb6, 0x87,
+	0xc9, 0xc8, 0x71, 0xc7, 0xe8, 0xfb, 0xa0, 0x78, 0xac, 0x8c, 0x49, 0xdc, 0xe7, 0xc1, 0x5d, 0x33,
+	0x86, 0xa8, 0xf1, 0x3a, 0xc6, 0x41, 0xec, 0xd8, 0x3a, 0x27, 0x2c, 0x07, 0x85, 0x36, 0x0b, 0xc7,
+	0x6f, 0xae, 0xf2, 0x5e, 0xf0, 0x24, 0xd5, 0x31, 0x6d, 0x47, 0x5c, 0x78, 0x92, 0x44, 0xf4, 0x10,
+	0xb6, 0x08, 0x5b, 0xb5, 0xf1, 0xc2, 0xb4, 0x27, 0x84, 0x97, 0xd6, 0x22, 0xd7, 0xe9, 0xc3, 0x0c,
+	0x9d, 0x22, 0x10, 0x5e, 0xe6, 0xd2, 0xbb, 0xa0, 0xf0, 0x4a, 0x1b, 0x8b, 0x27, 0xe3, 0xb9, 0xd1,
+	0x19, 0x60, 0xa3, 0xd1, 0xc5, 0xcd, 0xe3, 0xc1, 0xd7, 0x3d, 0x11, 0x4f, 0xd8, 0x78, 0x36, 0x34,
+	0xfa, 0x03, 0x55, 0x42, 0x45, 0x90, 0xeb, 0xbd, 0x9e, 0x9a, 0x43, 0x25, 0x50, 0x44, 0x66, 0x2e,
+	0x43, 0xfe, 0xd9, 0xd0, 0x18, 0x1a, 0xaa, 0xa2, 0xdf, 0x06, 0x88, 0xc4, 0xfb, 0x90, 0x0e, 0x13,
+	0x51, 0x04, 0xb9, 0x6f, 0x04, 0xec, 0x4d, 0x16, 0x88, 0x00, 0x05, 0x6c, 0xb4, 0xbb, 0xcf, 0x0d,
+	0x55, 0x7e, 0xac, 0x94, 0x64, 0x55, 0x79, 0xac, 0x94, 0x14, 0x35, 0x8f, 0x8b, 0xfc, 0xd6, 0xd1,
+	0x6a, 0x06, 0xe1, 0xff, 0xf1, 0x2f, 0x25, 0xd8, 0x5a, 0x6a, 0x15, 0xe2, 0xfa, 0x0e, 0x0c, 0xdc,
+	0x6e, 0x75, 0xea, 0xbc, 0xa8, 0x08, 0x7d, 0x2f, 0xc2, 0x85, 0xfe, 0xa0, 0xcb, 0xe2, 0xff, 0xf8,
+	0xe8, 0x6b, 0x56, 0x64, 0x24, 0xb6, 0x85, 0x41, 0xab, 0x6d, 0x74, 0x87, 0x03, 0x35, 0xc7, 0xaa,
+	0x51, 0x0f, 0x1b, 0x46, 0xbb, 0x37, 0xf0, 0x11, 0xc1, 0xf9, 0xc0, 0xaa, 0xcc, 0x8a, 0x4a, 0xef,
+	0x69, 0xbd, 0x61, 0x3c, 0xea, 0x3e, 0x6d, 0x1a, 0xf8, 0x18, 0x1b, 0x7c, 0xd4, 0x54, 0x95, 0xc3,
+	0xbf, 0xe6, 0xa0, 0xdc, 0x0f, 0xfe, 0x2f, 0xa1, 0x97, 0x70, 0x65, 0xc5, 0xcf, 0x06, 0xb4, 0xbf,
+	0xd6, 0xaf, 0x94, 0xea, 0x8d, 0xb7, 0xc1, 0xc4, 0x3f, 0x8b, 0x0f, 0x50, 0x1b, 0x54, 0xff, 0x48,
+	0xc4, 0x6e, 0x61, 0x59, 0x7d, 0xb6, 0x2f, 0xf7, 0x6a, 0xc6, 0x4c, 0x20, 0xea, 0xa6, 0xf4, 0x89,
+	0x84, 0x7a, 0x70, 0x51, 0x88, 0x8b, 0x3d, 0x3c, 0x86, 0x5c, 0xa9, 0xfb, 0x68, 0xb5, 0x9a, 0x35,
+	0x95, 0x90, 0x78, 0x0f, 0xc0, 0x97, 0xc8, 0x5f, 0x13, 0x51, 0xac, 0x5b, 0x0a, 0x64, 0x6c, 0x27,
+	0x68, 0x71, 0xe6, 0xbb, 0xf7, 0xa0, 0x4c, 0xad, 0x63, 0x4a, 0x46, 0x2e, 0xf1, 0xd0, 0x87, 0x35,
+	0xff, 0xef, 0x5c, 0x2d, 0xf8, 0x3b, 0x57, 0x7b, 0x60, 0x91, 0xe9, 0xb8, 0x3b, 0xf7, 0x9b, 0x98,
+	0xdf, 0x96, 0xfc, 0x02, 0x48, 0xd9, 0x65, 0xdf, 0x25, 0xde, 0x51, 0xe5, 0xa7, 0xe5, 0xa9, 0x75,
+	0x72, 0x30, 0x71, 0x0e, 0xa8, 0x75, 0x52, 0xe0, 0x4c, 0x9f, 0xfd, 0x3b, 0x00, 0x00, 0xff, 0xff,
+	0xff, 0x32, 0x8f, 0x7a, 0x10, 0x1c, 0x00, 0x00,
 }
diff --git a/scheduler-interface-spec.md b/scheduler-interface-spec.md
index a9285d0..c792e28 100644
--- a/scheduler-interface-spec.md
+++ b/scheduler-interface-spec.md
@@ -838,18 +838,27 @@
       QUEUE = 4;
    }
 
+   enum ChangeType {
+      NONE = 0;
+      SET = 1;
+      ADD = 2;
+      REMOVE = 3;
+   }
+
    // the type of the object associated with the event
    Type type = 1;
    // ID of the object associated with the event
    string objectID = 2;
-   // the group this object belongs to
-   // it specifies the application ID for allocations and the queue for applications
-   string groupID = 3;
-   // the reason of this event
-   string reason = 4;
    // the detailed message as string
    string message = 5;
    // timestamp of the event
    int64 timestampNano = 6;
+   // the type of the change
+   ChangeType eventChangeType = 7;
+   
+   reserved 3;
+   reserved "groupID";
+   reserved 4;
+   reserved "reason";
 }
 ```
diff --git a/si.proto b/si.proto
index 204c043..e529f52 100644
--- a/si.proto
+++ b/si.proto
@@ -471,17 +471,26 @@
       QUEUE = 4;
    }
 
+   enum ChangeType {
+      NONE = 0;
+      SET = 1;
+      ADD = 2;
+      REMOVE = 3;
+   }
+
    // the type of the object associated with the event
    Type type = 1;
    // ID of the object associated with the event
    string objectID = 2;
-   // the group this object belongs to
-   // it specifies the application ID for allocations and the queue for applications
-   string groupID = 3;
-   // the reason of this event
-   string reason = 4;
    // the detailed message as string
    string message = 5;
    // timestamp of the event
    int64 timestampNano = 6;
+   // the type of the change
+   ChangeType eventChangeType = 7;
+   
+   reserved 3;
+   reserved "groupID";
+   reserved 4;
+   reserved "reason";
 }