mirror of https://github.com/milvus-io/milvus.git
80 lines
2.0 KiB
Go
80 lines
2.0 KiB
Go
package componentutil
|
|
|
|
import (
|
|
"context"
|
|
"sync"
|
|
|
|
"github.com/milvus-io/milvus-proto/go-api/v2/commonpb"
|
|
"github.com/milvus-io/milvus-proto/go-api/v2/milvuspb"
|
|
"github.com/milvus-io/milvus/pkg/v2/common"
|
|
"github.com/milvus-io/milvus/pkg/v2/util/merr"
|
|
)
|
|
|
|
// NewComponentStateService create a ComponentStateService
|
|
func NewComponentStateService(role string) *ComponentStateService {
|
|
return &ComponentStateService{
|
|
nodeID: common.NotRegisteredID,
|
|
role: role,
|
|
stateCode: commonpb.StateCode_Initializing,
|
|
}
|
|
}
|
|
|
|
// ComponentStateService is a helper type to implement a GetComponentStates rpc at server side.
|
|
// StandBy -> Initializing -> Healthy -> Abnormal -> Healthy
|
|
// All can transfer into Stopping
|
|
type ComponentStateService struct {
|
|
mu sync.Mutex
|
|
nodeID int64
|
|
role string
|
|
stateCode commonpb.StateCode
|
|
}
|
|
|
|
func (s *ComponentStateService) OnInitialized(nodeID int64) {
|
|
s.mu.Lock()
|
|
defer s.mu.Unlock()
|
|
s.nodeID = nodeID
|
|
if s.stateCode != commonpb.StateCode_Initializing {
|
|
panic("initializing -> healthy")
|
|
}
|
|
s.stateCode = commonpb.StateCode_Healthy
|
|
}
|
|
|
|
func (s *ComponentStateService) OnHealthy() {
|
|
s.mu.Lock()
|
|
if s.stateCode == commonpb.StateCode_Abnormal {
|
|
s.stateCode = commonpb.StateCode_Healthy
|
|
}
|
|
s.mu.Unlock()
|
|
}
|
|
|
|
func (s *ComponentStateService) OnAbnormal() {
|
|
s.mu.Lock()
|
|
if s.stateCode == commonpb.StateCode_Healthy {
|
|
s.stateCode = commonpb.StateCode_Abnormal
|
|
}
|
|
s.mu.Unlock()
|
|
}
|
|
|
|
func (s *ComponentStateService) OnStopping() {
|
|
s.mu.Lock()
|
|
s.stateCode = commonpb.StateCode_Stopping
|
|
s.mu.Unlock()
|
|
}
|
|
|
|
// GetComponentStates get the component state of a milvus node.
|
|
func (s *ComponentStateService) GetComponentStates(ctx context.Context, _ *milvuspb.GetComponentStatesRequest) (*milvuspb.ComponentStates, error) {
|
|
s.mu.Lock()
|
|
code := s.stateCode
|
|
nodeID := s.nodeID
|
|
s.mu.Unlock()
|
|
|
|
return &milvuspb.ComponentStates{
|
|
State: &milvuspb.ComponentInfo{
|
|
NodeID: nodeID,
|
|
Role: s.role,
|
|
StateCode: code,
|
|
},
|
|
Status: merr.Status(nil),
|
|
}, nil
|
|
}
|