82 lines
2.4 KiB
Go
82 lines
2.4 KiB
Go
/*
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Copyright 2024 The Volcano Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package memoryqos
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import (
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"errors"
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"fmt"
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"os"
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"path"
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"k8s.io/klog/v2"
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"volcano.sh/volcano/pkg/agent/apis/extension"
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"volcano.sh/volcano/pkg/agent/events/framework"
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"volcano.sh/volcano/pkg/agent/events/handlers"
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"volcano.sh/volcano/pkg/agent/events/handlers/base"
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"volcano.sh/volcano/pkg/agent/features"
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"volcano.sh/volcano/pkg/agent/utils"
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"volcano.sh/volcano/pkg/agent/utils/cgroup"
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"volcano.sh/volcano/pkg/config"
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"volcano.sh/volcano/pkg/metriccollect"
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)
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func init() {
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handlers.RegisterEventHandleFunc(string(framework.PodEventName), NewMemoryQoSHandle)
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}
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type MemoryQoSHandle struct {
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*base.BaseHandle
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cgroupMgr cgroup.CgroupManager
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}
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func NewMemoryQoSHandle(config *config.Configuration, mgr *metriccollect.MetricCollectorManager, cgroupMgr cgroup.CgroupManager) framework.Handle {
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return &MemoryQoSHandle{
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BaseHandle: &base.BaseHandle{
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Name: string(features.MemoryQoSFeature),
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Config: config,
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},
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cgroupMgr: cgroupMgr,
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}
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}
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func (h *MemoryQoSHandle) Handle(event interface{}) error {
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podEvent, ok := event.(framework.PodEvent)
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if !ok {
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return fmt.Errorf("illegal pod event")
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}
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cgroupPath, err := h.cgroupMgr.GetPodCgroupPath(podEvent.QoSClass, cgroup.CgroupMemorySubsystem, podEvent.UID)
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if err != nil {
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return fmt.Errorf("failed to get pod cgroup file(%s), error: %v", podEvent.UID, err)
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}
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qosLevelFile := path.Join(cgroupPath, cgroup.MemoryQoSLevelFile)
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qosLevel := []byte(fmt.Sprintf("%d", extension.NormalizeQosLevel(podEvent.QoSLevel)))
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err = utils.UpdatePodCgroup(qosLevelFile, qosLevel)
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if err != nil {
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if errors.Is(err, os.ErrNotExist) {
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klog.InfoS("Cgroup file not existed", "cgroupFile", qosLevelFile)
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return nil
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}
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return err
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}
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klog.InfoS("Successfully set memory qos level to cgroup file", "qosLevel", qosLevel, "cgroupFile", qosLevelFile)
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return nil
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}
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