mirror of
https://github.com/yunionio/cloudpods.git
synced 2026-07-02 06:14:27 +08:00
87 lines
2.7 KiB
Go
87 lines
2.7 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 guest
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import (
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"context"
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"yunion.io/x/onecloud/pkg/apis/compute"
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"yunion.io/x/onecloud/pkg/scheduler/algorithm/predicates"
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"yunion.io/x/onecloud/pkg/scheduler/core"
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)
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// MigratePredicate filters whether the current candidate can be migrated.
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type MigratePredicate struct {
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predicates.BasePredicate
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}
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func (p *MigratePredicate) Name() string {
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return "host_migrate"
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}
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func (p *MigratePredicate) Clone() core.FitPredicate {
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return &MigratePredicate{}
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}
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func (p *MigratePredicate) PreExecute(ctx context.Context, u *core.Unit, cs []core.Candidater) (bool, error) {
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return len(u.SchedData().HostId) > 0, nil
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}
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func (p *MigratePredicate) Execute(ctx context.Context, u *core.Unit, c core.Candidater) (bool, []core.PredicateFailureReason, error) {
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h := predicates.NewPredicateHelper(p, u, c)
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schedData := u.SchedData()
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if schedData.HostId == c.IndexKey() {
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h.Exclude(predicates.ErrHostIsSpecifiedForMigration)
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return h.GetResult()
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}
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// live migrate check
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if schedData.LiveMigrate {
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host := c.Getter().Host()
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guestHypervisor := u.SchedData().Hypervisor
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if guestHypervisor != compute.HYPERVISOR_ESXI {
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// target host mem page size check
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if schedData.HostMemPageSizeKB != host.PageSizeKB {
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h.Exclude(predicates.ErrHostMemPageSizeNotMatchForLiveMigrate)
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return h.GetResult()
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}
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// target host cpu check
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if schedData.CpuMode != compute.CPU_MODE_QEMU && (schedData.SkipCpuCheck == nil || *schedData.SkipCpuCheck == false) {
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if schedData.CpuDesc != host.CpuDesc {
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h.Exclude(predicates.ErrHostCpuModelIsNotMatchForLiveMigrate)
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return h.GetResult()
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}
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if len(schedData.CpuMicrocode) > 0 && schedData.CpuMicrocode != host.CpuMicrocode {
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h.Exclude(predicates.ErrHostCpuMicrocodeNotMatchForLiveMigrate)
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return h.GetResult()
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}
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}
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// target host kernel check
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if schedData.SkipKernelCheck != nil && !*schedData.SkipKernelCheck {
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kv, _ := host.SysInfo.GetString("kernel_version")
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if schedData.TargetHostKernel != "" && schedData.TargetHostKernel != kv {
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h.Exclude2(predicates.ErrHostKernelNotMatchForLiveMigrate, kv, schedData.TargetHostKernel)
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return h.GetResult()
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}
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}
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}
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}
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return h.GetResult()
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}
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