-
Notifications
You must be signed in to change notification settings - Fork 331
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
document action_manager add data to logs
- Loading branch information
Showing
6 changed files
with
187 additions
and
163 deletions.
There are no files selected for viewing
This file was deleted.
Oops, something went wrong.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,156 @@ | ||
| package parade | ||
|
|
||
| import ( | ||
| "github.com/google/uuid" | ||
| "github.com/treeverse/lakefs/logging" | ||
| "sync" | ||
| "time" | ||
| ) | ||
|
|
||
| const ( | ||
| defaultWorkers = 5 | ||
| defaultChannelSize = 1000 | ||
| defaultMaxTasks = 500 | ||
| defaultWaitTime = time.Millisecond * 300 | ||
| defaultErrWaitTime = time.Millisecond * 300 | ||
| defaultMaxDuration = time.Minute * 30 // Todo(guys): change this | ||
| ) | ||
|
|
||
| // ManagerProperties defines the configuration properties of an ActionManager | ||
| type ManagerProperties struct { | ||
| Workers int // number of goroutines handling tasks | ||
| ChannelSize int // size of the channel containing tasks for workers | ||
| MaxTasks int // max tasks requested in every ownTasks request | ||
| WaitTime *time.Duration // time to wait if OwnTasks returned no tasks. | ||
| ErrWaitTime *time.Duration // time to wait if OwnTasks returned err. | ||
| MaxDuration *time.Duration // maxDuration passed to parade.OwnTasks | ||
| } | ||
|
|
||
| // A ActionManager manages the process of requesting and returning tasks for a specific TaskHandler | ||
| // The manager requests tasks, sends the tasks to workers through a channel, the workers then handle the task and return it | ||
| type ActionManager struct { | ||
| properties *ManagerProperties | ||
| handler TaskHandler | ||
| parade Parade | ||
| quit chan struct{} | ||
| wp *workerPool | ||
| } | ||
|
|
||
| func setDefaultProperties(properties *ManagerProperties) *ManagerProperties { | ||
| if properties == nil { | ||
| properties = &ManagerProperties{} | ||
| } | ||
| if properties.Workers == 0 { | ||
| properties.Workers = defaultWorkers | ||
| } | ||
| if properties.ChannelSize == 0 { | ||
| properties.ChannelSize = defaultChannelSize | ||
| } | ||
| if properties.MaxTasks == 0 { | ||
| properties.MaxTasks = defaultMaxTasks | ||
| } | ||
| if properties.WaitTime == nil { | ||
| waitTime := defaultWaitTime | ||
| properties.WaitTime = &waitTime | ||
| } | ||
| if properties.ErrWaitTime == nil { | ||
| errWaitTime := defaultErrWaitTime | ||
| properties.ErrWaitTime = &errWaitTime | ||
| } | ||
| if properties.MaxDuration == nil { | ||
| maxDuration := defaultMaxDuration | ||
| properties.MaxDuration = &maxDuration | ||
| } | ||
| return properties | ||
| } | ||
|
|
||
| // NewActionManager initiates an ActionManager with workers and returns a | ||
| func NewActionManager(handler TaskHandler, parade Parade, properties *ManagerProperties) *ActionManager { | ||
| a := &ActionManager{ | ||
| handler: handler, | ||
| parade: parade, | ||
| properties: setDefaultProperties(properties), | ||
| quit: nil, | ||
| } | ||
| a.start() | ||
| return a | ||
| } | ||
|
|
||
| func (a *ActionManager) Close() { | ||
| close(a.quit) | ||
| a.wp.Close() | ||
| } | ||
|
|
||
| func (a *ActionManager) start() { | ||
| taskChannel := make(chan OwnedTaskData, a.properties.ChannelSize) | ||
| a.quit = make(chan struct{}) | ||
| a.wp = newWorkerPool(a.handler, taskChannel, a.parade, a.properties.Workers) | ||
| go func() { | ||
| for { | ||
| select { | ||
| case <-a.quit: | ||
| return | ||
| default: | ||
| ownedTasks, err := a.parade.OwnTasks(a.handler.Actor(), a.properties.MaxTasks, a.handler.Actions(), a.properties.MaxDuration) | ||
| if err != nil { | ||
| logging.Default().WithField("actor", a.handler.Actor()).Errorf("manager failed to receive tasks: %s", err) | ||
| time.Sleep(*a.properties.WaitTime) | ||
| } | ||
| for _, ot := range ownedTasks { | ||
| a.wp.ch <- ot | ||
| } | ||
| if len(ownedTasks) == 0 { | ||
| time.Sleep(*a.properties.WaitTime) | ||
| } | ||
| } | ||
| } | ||
| }() | ||
| } | ||
|
|
||
| type workerPool struct { | ||
| handler TaskHandler | ||
| ch chan OwnedTaskData | ||
| workers int | ||
| wg sync.WaitGroup | ||
| parade Parade | ||
| } | ||
|
|
||
| func newWorkerPool(handler TaskHandler, ch chan OwnedTaskData, parade Parade, workers int) *workerPool { | ||
| a := &workerPool{ | ||
| handler: handler, | ||
| ch: ch, | ||
| workers: workers, | ||
| wg: sync.WaitGroup{}, | ||
| parade: parade, | ||
| } | ||
| a.start() | ||
| return a | ||
| } | ||
|
|
||
| func (a *workerPool) Close() { | ||
| close(a.ch) | ||
| a.wg.Wait() | ||
| } | ||
|
|
||
| func (a *workerPool) start() { | ||
| a.wg.Add(a.workers) | ||
| for i := 0; i < a.workers; i++ { | ||
| go func() { | ||
| workerID := uuid.New() | ||
| defer a.wg.Done() | ||
| for task := range a.ch { | ||
| res := a.handler.Handle(task.Action, task.Body) | ||
| err := a.parade.ReturnTask(task.ID, task.Token, res.Status, res.StatusCode) | ||
| if err != nil { | ||
| logging.Default().WithFields(logging.Fields{ | ||
| "action": task.Action, | ||
| "task workerID": task.ID, | ||
| "status": res.Status, | ||
| "status code:": res.StatusCode, | ||
| "worker workerID": workerID, | ||
| }).Errorf("failed to return task: %w", err) | ||
| } | ||
| } | ||
| }() | ||
| } | ||
| } |
Oops, something went wrong.