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

     1  /*
     2  Copyright 2018 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 framework
    18  
    19  import (
    20  	"time"
    21  
    22  	"k8s.io/klog/v2"
    23  
    24  	"volcano.sh/volcano/pkg/scheduler/cache"
    25  	"volcano.sh/volcano/pkg/scheduler/conf"
    26  	"volcano.sh/volcano/pkg/scheduler/metrics"
    27  )
    28  
    29  // OpenSession start the session
    30  func OpenSession(cache cache.Cache, tiers []conf.Tier, configurations []conf.Configuration) *Session {
    31  	ssn := openSession(cache)
    32  	ssn.Tiers = tiers
    33  	ssn.Configurations = configurations
    34  	ssn.NodeMap = GenerateNodeMapAndSlice(ssn.Nodes)
    35  	ssn.PodLister = NewPodLister(ssn)
    36  
    37  	for _, tier := range tiers {
    38  		for _, plugin := range tier.Plugins {
    39  			if pb, found := GetPluginBuilder(plugin.Name); !found {
    40  				klog.Errorf("Failed to get plugin %s.", plugin.Name)
    41  			} else {
    42  				plugin := pb(plugin.Arguments)
    43  				ssn.plugins[plugin.Name()] = plugin
    44  				onSessionOpenStart := time.Now()
    45  				plugin.OnSessionOpen(ssn)
    46  				metrics.UpdatePluginDuration(plugin.Name(), metrics.OnSessionOpen, metrics.Duration(onSessionOpenStart))
    47  			}
    48  		}
    49  	}
    50  	return ssn
    51  }
    52  
    53  // CloseSession close the session
    54  func CloseSession(ssn *Session) {
    55  	for _, plugin := range ssn.plugins {
    56  		onSessionCloseStart := time.Now()
    57  		plugin.OnSessionClose(ssn)
    58  		metrics.UpdatePluginDuration(plugin.Name(), metrics.OnSessionClose, metrics.Duration(onSessionCloseStart))
    59  	}
    60  
    61  	closeSession(ssn)
    62  }