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fix bug: concurrent map writes error

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rootlh 2020-11-21 12:06:36 +08:00 committed by lianghao208
parent 8c7cd8a8cc
commit 42c00bc523
1 changed files with 5 additions and 2 deletions
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7
pkg/scheduler/framework/plugins/volumebinding/volume_binding.go
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@ -20,6 +20,7 @@ import (
"context" "context"
"errors" "errors"
"fmt" "fmt"
"sync"
"time" "time"
v1 "k8s.io/api/core/v1" v1 "k8s.io/api/core/v1"
@ -53,6 +54,7 @@ type stateData struct {
// phase for each node // phase for each node
// it's initialized in the PreFilter phase // it's initialized in the PreFilter phase
podVolumesByNode map[string]*scheduling.PodVolumes podVolumesByNode map[string]*scheduling.PodVolumes
sync.Mutex
} }
func (d *stateData) Clone() framework.StateData { func (d *stateData) Clone() framework.StateData {
@ -205,9 +207,10 @@ func (pl *VolumeBinding) Filter(ctx context.Context, cs *framework.CycleState, p
return status return status
} }
cs.Lock() // multiple goroutines call `Filter` on different nodes simultaneously and the `CycleState` may be duplicated, so we must use a local lock here
state.Lock()
state.podVolumesByNode[node.Name] = podVolumes state.podVolumesByNode[node.Name] = podVolumes
cs.Unlock() state.Unlock()
return nil return nil
} }