volcano.sh/volcano@v1.9.0/pkg/scheduler/actions/enqueue/enqueue.go (about)

     1  /*
     2  Copyright 2019 The Kubernetes Authors.
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8      http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreed to in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  package enqueue
    18  
    19  import (
    20  	"time"
    21  
    22  	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
    23  	"k8s.io/apimachinery/pkg/util/sets"
    24  	"k8s.io/klog/v2"
    25  
    26  	"volcano.sh/apis/pkg/apis/scheduling"
    27  	"volcano.sh/volcano/pkg/scheduler/api"
    28  	"volcano.sh/volcano/pkg/scheduler/framework"
    29  	"volcano.sh/volcano/pkg/scheduler/util"
    30  )
    31  
    32  type Action struct{}
    33  
    34  func New() *Action {
    35  	return &Action{}
    36  }
    37  
    38  func (enqueue *Action) Name() string {
    39  	return "enqueue"
    40  }
    41  
    42  func (enqueue *Action) Initialize() {}
    43  
    44  func (enqueue *Action) Execute(ssn *framework.Session) {
    45  	klog.V(5).Infof("Enter Enqueue ...")
    46  	defer klog.V(5).Infof("Leaving Enqueue ...")
    47  
    48  	queues := util.NewPriorityQueue(ssn.QueueOrderFn)
    49  	queueSet := sets.NewString()
    50  	jobsMap := map[api.QueueID]*util.PriorityQueue{}
    51  
    52  	for _, job := range ssn.Jobs {
    53  		if job.ScheduleStartTimestamp.IsZero() {
    54  			ssn.Jobs[job.UID].ScheduleStartTimestamp = metav1.Time{
    55  				Time: time.Now(),
    56  			}
    57  		}
    58  		if queue, found := ssn.Queues[job.Queue]; !found {
    59  			klog.Errorf("Failed to find Queue <%s> for Job <%s/%s>",
    60  				job.Queue, job.Namespace, job.Name)
    61  			continue
    62  		} else if !queueSet.Has(string(queue.UID)) {
    63  			klog.V(5).Infof("Added Queue <%s> for Job <%s/%s>",
    64  				queue.Name, job.Namespace, job.Name)
    65  
    66  			queueSet.Insert(string(queue.UID))
    67  			queues.Push(queue)
    68  		}
    69  
    70  		if job.IsPending() {
    71  			if _, found := jobsMap[job.Queue]; !found {
    72  				jobsMap[job.Queue] = util.NewPriorityQueue(ssn.JobOrderFn)
    73  			}
    74  			klog.V(5).Infof("Added Job <%s/%s> into Queue <%s>", job.Namespace, job.Name, job.Queue)
    75  			jobsMap[job.Queue].Push(job)
    76  		}
    77  	}
    78  
    79  	klog.V(3).Infof("Try to enqueue PodGroup to %d Queues", len(jobsMap))
    80  
    81  	for {
    82  		if queues.Empty() {
    83  			break
    84  		}
    85  
    86  		queue := queues.Pop().(*api.QueueInfo)
    87  
    88  		// skip the Queue that has no pending job
    89  		jobs, found := jobsMap[queue.UID]
    90  		if !found || jobs.Empty() {
    91  			continue
    92  		}
    93  		job := jobs.Pop().(*api.JobInfo)
    94  
    95  		if job.PodGroup.Spec.MinResources == nil || ssn.JobEnqueueable(job) {
    96  			ssn.JobEnqueued(job)
    97  			job.PodGroup.Status.Phase = scheduling.PodGroupInqueue
    98  			ssn.Jobs[job.UID] = job
    99  		}
   100  
   101  		// Added Queue back until no job in Queue.
   102  		queues.Push(queue)
   103  	}
   104  }
   105  
   106  func (enqueue *Action) UnInitialize() {}