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59 lines
1.9 KiB
Go
59 lines
1.9 KiB
Go
package service
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import (
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"context"
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"github.com/prometheus/client_golang/prometheus"
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"github.com/milvus-io/milvus/internal/streamingcoord/server/balancer"
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"github.com/milvus-io/milvus/internal/streamingcoord/server/service/discover"
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"github.com/milvus-io/milvus/pkg/v2/metrics"
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"github.com/milvus-io/milvus/pkg/v2/proto/streamingpb"
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"github.com/milvus-io/milvus/pkg/v2/util/paramtable"
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"github.com/milvus-io/milvus/pkg/v2/util/syncutil"
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)
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var _ streamingpb.StreamingCoordAssignmentServiceServer = (*assignmentServiceImpl)(nil)
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// NewAssignmentService returns a new assignment service.
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func NewAssignmentService(
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balancer *syncutil.Future[balancer.Balancer],
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) streamingpb.StreamingCoordAssignmentServiceServer {
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return &assignmentServiceImpl{
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balancer: balancer,
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listenerTotal: metrics.StreamingCoordAssignmentListenerTotal.WithLabelValues(paramtable.GetStringNodeID()),
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}
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}
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type AssignmentService interface {
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streamingpb.StreamingCoordAssignmentServiceServer
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}
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// assignmentServiceImpl is the implementation of the assignment service.
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type assignmentServiceImpl struct {
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balancer *syncutil.Future[balancer.Balancer]
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listenerTotal prometheus.Gauge
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}
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// AssignmentDiscover watches the state of all log nodes.
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func (s *assignmentServiceImpl) AssignmentDiscover(server streamingpb.StreamingCoordAssignmentService_AssignmentDiscoverServer) error {
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s.listenerTotal.Inc()
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defer s.listenerTotal.Dec()
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balancer, err := s.balancer.GetWithContext(server.Context())
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if err != nil {
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return err
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}
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return discover.NewAssignmentDiscoverServer(balancer, server).Execute()
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}
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// UpdateWALBalancePolicy is used to update the WAL balance policy.
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func (s *assignmentServiceImpl) UpdateWALBalancePolicy(ctx context.Context, req *streamingpb.UpdateWALBalancePolicyRequest) (*streamingpb.UpdateWALBalancePolicyResponse, error) {
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balancer, err := s.balancer.GetWithContext(ctx)
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if err != nil {
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return nil, err
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}
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return balancer.UpdateBalancePolicy(ctx, req)
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}
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