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Rain
103 lines
3.3 KiB
Go
103 lines
3.3 KiB
Go
// Copyright 2019 Yunion
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//
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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package autoscaling
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import (
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"context"
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"time"
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"yunion.io/x/log"
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"yunion.io/x/onecloud/pkg/apis/compute"
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"yunion.io/x/onecloud/pkg/cloudcommon/db"
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"yunion.io/x/onecloud/pkg/compute/models"
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"yunion.io/x/onecloud/pkg/mcclient"
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)
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type STimeScope struct {
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Start time.Time
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End time.Time
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Median time.Time
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}
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func (asc *SASController) timeScope(median time.Time, interval time.Duration) STimeScope {
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ri := interval / 2
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return STimeScope{
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Start: median.Add(-ri),
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End: median.Add(ri),
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Median: median,
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}
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}
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func (asc *SASController) Timer(ctx context.Context, userCred mcclient.TokenCredential, isStart bool) {
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// 60 is for fault tolerance
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interval := asc.options.TimerInterval + 30
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timeScope := asc.timeScope(time.Now(), time.Duration(interval)*time.Second)
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spSubQ := models.ScalingPolicyManager.Query("id").Equals("status", compute.SP_STATUS_READY).SubQuery()
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q := models.ScalingTimerManager.Query().
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LT("next_time", timeScope.End).
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IsFalse("is_expired").In("scaling_policy_id", spSubQ)
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scalingTimers := make([]models.SScalingTimer, 0, 5)
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log.Debugf("asc.Timer")
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q.DebugQuery()
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err := db.FetchModelObjects(models.ScalingTimerManager, q, &scalingTimers)
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if err != nil {
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log.Errorf("db.FetchModelObjects error: %s", err.Error())
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return
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}
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log.Debugf("total %d need to exec, %s", len(scalingTimers), scalingTimers)
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for _, scalingTimer := range scalingTimers {
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asc.timerQueue <- struct{}{}
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go func(ctx context.Context) {
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defer func() {
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<-asc.timerQueue
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}()
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if scalingTimer.NextTime.Before(timeScope.Start) {
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// For unknown reasons, the scalingTimer did not execute at the specified time
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scalingTimer.Update(timeScope.Start)
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// scalingTimer should not exec for now.
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if scalingTimer.NextTime.After(timeScope.End) {
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err = models.ScalingTimerManager.TableSpec().InsertOrUpdate(&scalingTimer)
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if err != nil {
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log.Errorf("update ScalingTimer whose ScalingPolicyId is %s error: %s",
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scalingTimer.ScalingPolicyId, err.Error())
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}
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return
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}
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}
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sp, err := scalingTimer.ScalingPolicy()
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if err != nil {
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log.Errorf("fail to get ScalingPolicy of ScalingTimer '%s': %s", scalingTimer.Id, err)
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return
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}
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sg, err := sp.ScalingGroup()
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if err != nil {
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log.Errorf("fail to get ScalingGroup of ScalingPolicy '%s': %s", sp.Id, err)
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return
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}
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err = sg.Scale(ctx, &scalingTimer, sp)
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if err != nil {
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log.Errorf("ScalingGroup '%s' scale error", sg.Id)
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}
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scalingTimer.Update(timeScope.End)
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err = models.ScalingTimerManager.TableSpec().InsertOrUpdate(&scalingTimer)
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if err != nil {
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log.Errorf("update ScalingTimer whose ScalingPolicyId is %s error: %s",
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scalingTimer.ScalingPolicyId, err.Error())
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}
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}(ctx)
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}
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}
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