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schedule: refactor diagnostic manager (#6771)
ref #5839 Signed-off-by: Ryan Leung <rleungx@gmail.com> Co-authored-by: ti-chi-bot[bot] <108142056+ti-chi-bot[bot]@users.noreply.github.com>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,79 @@ | ||
| // Copyright 2022 TiKV Project Authors. | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| package diagnostic | ||
|
|
||
| import ( | ||
| "time" | ||
|
|
||
| "github.com/tikv/pd/pkg/errs" | ||
| "github.com/tikv/pd/pkg/schedule/schedulers" | ||
| "github.com/tikv/pd/server/config" | ||
| ) | ||
|
|
||
| // Manager is used to manage the diagnostic result of schedulers for now. | ||
| type Manager struct { | ||
| config *config.PersistOptions | ||
| schedulerController map[string]*schedulers.ScheduleController | ||
| } | ||
|
|
||
| // NewManager creates a new Manager. | ||
| func NewManager(schedulerController map[string]*schedulers.ScheduleController, config *config.PersistOptions) *Manager { | ||
| return &Manager{ | ||
| config: config, | ||
| schedulerController: schedulerController, | ||
| } | ||
| } | ||
|
|
||
| // GetDiagnosticResult gets the diagnostic result of the scheduler. | ||
| func (d *Manager) GetDiagnosticResult(name string) (*schedulers.DiagnosticResult, error) { | ||
| if !d.config.IsDiagnosticAllowed() { | ||
| return nil, errs.ErrDiagnosticDisabled | ||
| } | ||
|
|
||
| scheduler, isSchedulerExisted := d.schedulerController[name] | ||
| if !isSchedulerExisted { | ||
| ts := uint64(time.Now().Unix()) | ||
| res := &schedulers.DiagnosticResult{Name: name, Timestamp: ts, Status: schedulers.Disabled} | ||
| return res, nil | ||
| } | ||
| var isDisabled bool | ||
| t := scheduler.Scheduler.GetType() | ||
| scheduleConfig := d.config.GetScheduleConfig() | ||
| for _, s := range scheduleConfig.Schedulers { | ||
| if t == s.Type { | ||
| isDisabled = s.Disable | ||
| break | ||
| } | ||
| } | ||
| if isDisabled { | ||
| ts := uint64(time.Now().Unix()) | ||
| res := &schedulers.DiagnosticResult{Name: name, Timestamp: ts, Status: schedulers.Disabled} | ||
| return res, nil | ||
| } | ||
|
|
||
| recorder := d.getSchedulerRecorder(name) | ||
| if recorder == nil { | ||
| return nil, errs.ErrSchedulerUndiagnosable.FastGenByArgs(name) | ||
| } | ||
| result := recorder.GetLastResult() | ||
| if result == nil { | ||
| return nil, errs.ErrNoDiagnosticResult.FastGenByArgs(name) | ||
| } | ||
| return result, nil | ||
| } | ||
|
|
||
| func (d *Manager) getSchedulerRecorder(name string) *schedulers.DiagnosticRecorder { | ||
| return d.schedulerController[name].GetDiagnosticRecorder() | ||
| } |
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