forked from livekit/livekit
/
sysload.go
39 lines (33 loc) · 945 Bytes
/
sysload.go
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package selector
import (
"github.com/abdulhaseeb08/protocol/livekit"
)
// SystemLoadSelector eliminates nodes that surpass has a per-cpu node higher than SysloadLimit
// then selects a node from nodes that are not overloaded
type SystemLoadSelector struct {
SysloadLimit float32
SortBy string
}
func (s *SystemLoadSelector) filterNodes(nodes []*livekit.Node) ([]*livekit.Node, error) {
nodes = GetAvailableNodes(nodes)
if len(nodes) == 0 {
return nil, ErrNoAvailableNodes
}
nodesLowLoad := make([]*livekit.Node, 0)
for _, node := range nodes {
if GetNodeSysload(node) < s.SysloadLimit {
nodesLowLoad = append(nodesLowLoad, node)
}
}
if len(nodesLowLoad) > 0 {
nodes = nodesLowLoad
}
return nodes, nil
}
func (s *SystemLoadSelector) SelectNode(nodes []*livekit.Node) (*livekit.Node, error) {
nodes, err := s.filterNodes(nodes)
if err != nil {
return nil, err
}
return SelectSortedNode(nodes, s.SortBy)
}