console/plugin/migration/pipeline.go

1436 lines
38 KiB
Go

/* Copyright © INFINI Ltd. All rights reserved.
* Web: https://infinilabs.com
* Email: hello#infini.ltd */
package migration
import (
"errors"
"fmt"
log "github.com/cihub/seelog"
"infini.sh/console/model"
"infini.sh/framework/core/config"
"infini.sh/framework/core/elastic"
"infini.sh/framework/core/env"
"infini.sh/framework/core/event"
"infini.sh/framework/core/global"
"infini.sh/framework/core/orm"
"infini.sh/framework/core/pipeline"
task2 "infini.sh/framework/core/task"
"infini.sh/framework/core/util"
"infini.sh/framework/modules/elastic/common"
"math"
"strings"
"syscall"
"time"
)
type DispatcherProcessor struct {
id string
config *DispatcherConfig
state map[string]DispatcherState
}
type DispatcherConfig struct {
Elasticsearch string `config:"elasticsearch,omitempty"`
IndexName string `config:"index_name"`
LogIndexName string `config:"log_index_name"`
MaxTasksPerInstance int `config:"max_tasks_per_instance"`
CheckInstanceAvailable bool `config:"check_instance_available"`
TaskBatchSize int `config:"task_batch_size"`
}
type DispatcherState struct {
Total int
}
func init() {
pipeline.RegisterProcessorPlugin("migration_dispatcher", newMigrationDispatcherProcessor)
}
func newMigrationDispatcherProcessor(c *config.Config) (pipeline.Processor, error) {
cfg := DispatcherConfig{}
if err := c.Unpack(&cfg); err != nil {
log.Error(err)
return nil, fmt.Errorf("failed to unpack the configuration of migration dispatcher processor: %s", err)
}
if cfg.IndexName == "" || cfg.LogIndexName == "" {
ormConfig := common.ORMConfig{}
ok, err := env.ParseConfig("elastic.orm", &ormConfig)
if ok && err == nil {
if cfg.IndexName == ""{
cfg.IndexName = fmt.Sprintf("%stask", ormConfig.IndexPrefix)
}
if cfg.LogIndexName == "" {
cfg.LogIndexName = fmt.Sprintf("%slogs", ormConfig.IndexPrefix)
}
}else{
err = fmt.Errorf("parse config elastic.orm error: %w", err)
log.Error(err)
return nil, err
}
}
global.Register("cluster_migration_config", &cfg)
if cfg.MaxTasksPerInstance <= 0 {
cfg.MaxTasksPerInstance = 10
}
if cfg.TaskBatchSize <= 0 {
cfg.TaskBatchSize = 50
}
//query and then init dispatcher state
processor := DispatcherProcessor{
id: util.GetUUID(),
config: &cfg,
state: map[string]DispatcherState{},
}
state, err := processor.getInstanceTaskState()
if err != nil {
log.Error(err)
return nil, err
}
processor.state = state
return &processor, nil
}
func (p *DispatcherProcessor) Name() string {
return "migration_dispatcher"
}
func (p *DispatcherProcessor) Process(ctx *pipeline.Context) error {
for {
if ctx.IsCanceled() {
return nil
}
tasks, err := p.getMigrationTasks(p.config.TaskBatchSize)
if err != nil {
return err
}
if len(tasks) == 0 {
log.Debug("got zero cluster migration task from es")
return nil
}
for _, t := range tasks {
if ctx.IsCanceled() {
return nil
}
if t.Metadata.Labels == nil {
log.Error("got migration task with empty labels, skip handling: %v", t)
continue
}
if t.Metadata.Labels["business_id"] == "cluster_migration" {
//handle major task
switch t.Status {
case task2.StatusReady:
err = p.handleReadyMajorTask(&t)
case task2.StatusRunning:
err = p.handleRunningMajorTask(&t)
case task2.StatusPendingStop:
err = p.handlePendingStopMajorTask(&t)
}
}else if t.Metadata.Labels["business_id"] == "index_migration" {
//handle sub migration task
switch t.Status {
case task2.StatusReady:
err = p.handleReadySubTask(&t)
case task2.StatusRunning:
err = p.handleRunningSubTask(&t)
case task2.StatusPendingStop:
err = p.handlePendingStopSubTask(&t)
}
}
if err != nil {
t.Status = task2.StatusError
tn := time.Now()
t.CompletedTime = &tn
p.saveTaskAndWriteLog(&t, &task2.Log{
ID: util.GetUUID(),
TaskId: t.ID,
Status: task2.StatusError,
Type: t.Metadata.Type,
Config: t.Config,
Result: &task2.LogResult{
Success: false,
Error: err.Error(),
},
Message: fmt.Sprintf("failed to handling task [%s]: [%v]", t.ID, err),
Timestamp: time.Now().UTC(),
},"")
}
}
//es index refresh
time.Sleep(time.Millisecond * 1200)
}
}
func (p *DispatcherProcessor) handleReadyMajorTask(taskItem *task2.Task) error{
if taskItem.Metadata.Labels == nil {
return fmt.Errorf("got migration task with empty labels, skip handling: %v", taskItem)
}
if taskItem.Metadata.Labels["is_split"] != true {
err := p.splitMajorMigrationTask(taskItem)
if err != nil {
return err
}
taskItem.Metadata.Labels["is_split"] = true
}else{
taskItem.RetryTimes++
}
//update status of subtask to ready
query := util.MapStr{
"bool": util.MapStr{
"must": []util.MapStr{
{
"term": util.MapStr{
"parent_id": util.MapStr{
"value": taskItem.ID,
},
},
},
{
"terms": util.MapStr{
"status": []string{task2.StatusError, task2.StatusStopped},
},
},
{
"term": util.MapStr{
"metadata.labels.business_id": util.MapStr{
"value": "index_migration",
},
},
},
},
},
}
queryDsl := util.MapStr{
"query": query,
"script": util.MapStr{
"source": fmt.Sprintf("ctx._source['status'] = '%s'", task2.StatusReady),
},
}
esClient := elastic.GetClient(p.config.Elasticsearch)
_, err := esClient.UpdateByQuery(p.config.IndexName, util.MustToJSONBytes(queryDsl) )
if err != nil {
return err
}
taskLog := &task2.Log{
ID: util.GetUUID(),
TaskId: taskItem.ID,
Status: task2.StatusRunning,
Type: taskItem.Metadata.Type,
Config: taskItem.Config,
Result: &task2.LogResult{
Success: true,
},
Message: fmt.Sprintf("success to start task [%s]", taskItem.ID),
Timestamp: time.Now().UTC(),
}
taskItem.Status = task2.StatusRunning
p.saveTaskAndWriteLog(taskItem, taskLog, "")
return nil
}
func (p *DispatcherProcessor) handlePendingStopMajorTask(taskItem *task2.Task) error{
//check whether all pipeline task is stopped or not, then update task status
q := util.MapStr{
"size": 200,
"query": util.MapStr{
"bool": util.MapStr{
"must": []util.MapStr{
{
"term": util.MapStr{
"metadata.labels.business_id": "index_migration",
},
},
{
"terms": util.MapStr{
"status": []string{task2.StatusRunning, task2.StatusPendingStop},
},
},
},
},
},
}
tasks, err := p.getTasks(q)
if err != nil {
return err
}
// all subtask stopped or error or complete
if len(tasks) == 0 {
taskItem.Status = task2.StatusStopped
p.saveTaskAndWriteLog(taskItem, &task2.Log{
ID: util.GetUUID(),
TaskId: taskItem.ID,
Status: task2.StatusStopped,
Type: taskItem.Metadata.Type,
Config: taskItem.Config,
Message: fmt.Sprintf("task [%s] is stopped", taskItem.ID),
Timestamp: time.Now().UTC(),
},"")
}
return nil
}
func (p *DispatcherProcessor) handleRunningMajorTask(taskItem *task2.Task) error{
ts, err := p.getMajorTaskState(taskItem)
if err != nil {
return err
}
if ts.Status == task2.StatusComplete || ts.Status == task2.StatusError {
taskItem.Metadata.Labels["target_total_docs"] = ts.IndexDocs
taskItem.Status = ts.Status
tn := time.Now()
taskItem.CompletedTime = &tn
p.saveTaskAndWriteLog(taskItem, &task2.Log{
ID: util.GetUUID(),
TaskId: taskItem.ID,
Status: taskItem.Status,
Type: taskItem.Metadata.Type,
Config: taskItem.Config,
Message: fmt.Sprintf("task [%s] is complete", taskItem.ID),
Timestamp: time.Now().UTC(),
},"")
}
return nil
}
func (p *DispatcherProcessor) handleRunningSubTask(taskItem *task2.Task) error{
state, err := p.getTaskCompleteState(taskItem)
if err != nil {
return err
}
if state.IsComplete {
if taskItem.Metadata.Labels != nil {
taskItem.Metadata.Labels["index_docs"] = state.SuccessDocs
taskItem.Metadata.Labels["scrolled_docs"] = state.ScrolledDocs
if instanceID, ok := taskItem.Metadata.Labels["execution_instance_id"].(string); ok {
inst := model.Instance{}
inst.ID = instanceID
_, err = orm.Get(&inst)
if err == nil {
for _, pipelineID := range state.PipelineIds {
err = inst.DeletePipeline(pipelineID)
if err != nil {
log.Error(err)
continue
}
selector := util.MapStr{
"labels": util.MapStr{
"migration_task_id": taskItem.ID,
},
}
//clear queue
err = inst.DeleteQueueBySelector(selector)
if err != nil {
log.Error(err)
}
}
}
if st, ok := p.state[instanceID]; ok {
st.Total -= 1
p.state[instanceID] = st
}
}
}
if state.Error != "" && state.TotalDocs != state.SuccessDocs {
taskItem.Status = task2.StatusError
}else {
taskItem.Status = task2.StatusComplete
}
tn := time.Now()
taskItem.CompletedTime = &tn
p.saveTaskAndWriteLog(taskItem, &task2.Log{
ID: util.GetUUID(),
TaskId: taskItem.ID,
Status: taskItem.Status,
Type: taskItem.Metadata.Type,
Config: taskItem.Config,
Result: &task2.LogResult{
Success: state.Error == "",
Error: state.Error,
},
Message: fmt.Sprintf("task [%s] is complete", taskItem.ID),
Timestamp: time.Now().UTC(),
},"")
}else{
if state.RunningPhase == 1 && taskItem.Metadata.Labels["running_phase"] == float64(1) {
ptasks, err := p.getPipelineTasks(taskItem.ID)
if err != nil {
return err
}
var bulkTask *task2.Task
for i, t := range ptasks {
if t.Metadata.Labels != nil {
if t.Metadata.Labels["pipeline_id"] == "bulk_indexing" {
bulkTask = &ptasks[i]
}
}
}
if bulkTask == nil {
return fmt.Errorf("can not found bulk_indexing pipeline of sub task [%s]", taskItem.ID)
}
if bulkTask.Metadata.Labels != nil {
if instID, ok := bulkTask.Metadata.Labels["execution_instance_id"].(string); ok {
inst := &model.Instance{}
inst.ID = instID
_, err = orm.Get(inst)
if err != nil {
return err
}
err = inst.CreatePipeline(util.MustToJSONBytes(bulkTask.Config))
if err != nil {
return err
}
taskItem.Metadata.Labels["running_phase"] = 2
}
}
p.saveTaskAndWriteLog(taskItem,nil, "wait_for")
}
}
return nil
}
func (p *DispatcherProcessor) handlePendingStopSubTask(taskItem *task2.Task) error{
//check whether all pipeline task is stopped or not, then update task status
ptasks, err := p.getPipelineTasks(taskItem.ID)
if err != nil {
return err
}
var taskIDs []string
for _, t := range ptasks {
taskIDs = append(taskIDs, t.ID)
}
esClient := elastic.GetClient(p.config.Elasticsearch)
q := util.MapStr{
"size": len(taskIDs),
"sort": []util.MapStr{
{
"payload.pipeline.status_log.steps": util.MapStr{
"order": "desc",
},
},
},
"collapse": util.MapStr{
"field": "metadata.labels.task_id",
},
"query": util.MapStr{
"terms": util.MapStr{
"metadata.labels.task_id": taskIDs,
},
},
}
searchRes, err := esClient.SearchWithRawQueryDSL(p.config.LogIndexName, util.MustToJSONBytes(q))
if err != nil {
return err
}
if len(searchRes.Hits.Hits) == 0 {
return nil
}
MainLoop:
for _, hit := range searchRes.Hits.Hits {
status, _ := util.MapStr(hit.Source).GetValue("payload.pipeline.status_log.status")
if status != "STOPPED" {
//call instance api to stop scroll/bulk_indexing pipeline task
if instID, ok := taskItem.Metadata.Labels["execution_instance_id"].(string); ok {
inst := model.Instance{}
inst.ID = instID
_, err = orm.Get(&inst)
if err != nil {
return err
}
hasStopped := true
for _, pipelineID := range taskIDs {
err = inst.StopPipelineWithTimeout(pipelineID, time.Second)
if err != nil {
if !errors.Is(err, syscall.ECONNREFUSED) && !strings.Contains(err.Error(), "task not found"){
hasStopped = false
break
}
log.Error(err)
}
}
if hasStopped {
break MainLoop
}
}
return nil
}
}
taskItem.Status = task2.StatusStopped
//delete pipeline and clear queue
if instanceID, ok := taskItem.Metadata.Labels["execution_instance_id"].(string); ok {
inst := model.Instance{}
inst.ID = instanceID
_, err = orm.Get(&inst)
if err != nil {
return err
}
for _, pipelineID := range taskIDs {
err = inst.DeletePipeline(pipelineID)
if err != nil {
log.Error(err)
continue
}
selector := util.MapStr{
"labels": util.MapStr{
"migration_task_id": taskItem.ID,
},
}
//clear queue
err = inst.DeleteQueueBySelector(selector)
if err != nil {
log.Error(err)
}
}
if st, ok := p.state[instanceID]; ok {
st.Total -= 1
p.state[instanceID] = st
}
}
p.saveTaskAndWriteLog(taskItem, &task2.Log{
ID: util.GetUUID(),
TaskId: taskItem.ID,
Status: task2.StatusStopped,
Type: taskItem.Metadata.Type,
Config: taskItem.Config,
Message: fmt.Sprintf("task [%s] is stopped", taskItem.ID),
Timestamp: time.Now().UTC(),
},"")
return nil
}
func (p *DispatcherProcessor) handleReadySubTask(taskItem *task2.Task) error{
if taskItem.Metadata.Labels == nil {
return fmt.Errorf("empty labels")
}
var (
scrollTask *task2.Task
bulkTask *task2.Task
)
if taskItem.Metadata.Labels["is_split"] == true {
//query split pipeline task
ptasks, err := p.getPipelineTasks(taskItem.ID)
if err != nil {
return err
}
for i, t := range ptasks {
if t.Metadata.Labels != nil {
if cfg, ok := ptasks[i].Config.(map[string]interface{}); ok {
util.MapStr(cfg).Put("labels.retry_no", taskItem.RetryTimes + 1)
}
if t.Metadata.Labels["pipeline_id"] == "es_scroll" {
scrollTask = &ptasks[i]
}else if t.Metadata.Labels["pipeline_id"] == "bulk_indexing" {
bulkTask = &ptasks[i]
}
}
}
if scrollTask == nil || bulkTask == nil {
return fmt.Errorf("es_scroll or bulk_indexing pipeline task not found")
}
taskItem.RetryTimes++
}else {
//split task to scroll/bulk_indexing pipeline and then persistent
var pids []string
pids = append(pids, taskItem.ParentId...)
pids = append(pids, taskItem.ID)
scrollID := util.GetUUID()
var (
cfg map[string]interface{}
ok bool
)
if cfg, ok = taskItem.Config.(map[string]interface{}); !ok {
return fmt.Errorf("got wrong config [%v] with task [%s]", taskItem.Config, taskItem.ID)
}
cfgm := util.MapStr(cfg)
var (
sourceClusterID string
targetClusterID string
)
if sourceClusterID, ok = getMapValue(cfgm, "source.cluster_id").(string); !ok {
return fmt.Errorf("got wrong source cluster id of task [%v]", *taskItem)
}
if targetClusterID, ok = getMapValue(cfgm, "target.cluster_id").(string); !ok {
return fmt.Errorf("got wrong target cluster id of task [%v]", *taskItem)
}
esConfig := elastic.GetConfig(sourceClusterID)
esTargetConfig := elastic.GetConfig(targetClusterID)
docType := common.GetClusterDocType(targetClusterID)
if len(taskItem.ParentId) == 0 {
return fmt.Errorf("got wrong parent id of task [%v]", *taskItem)
}
queryDsl := getMapValue(cfgm, "source.query_dsl")
scrollQueryDsl := util.MustToJSON(util.MapStr{
"query": queryDsl,
})
indexName := getMapValue(cfgm, "source.indices")
scrollTask = &task2.Task{
ParentId: pids,
Runnable: true,
Cancellable: true,
Metadata: task2.Metadata{
Type: "pipeline",
Labels: util.MapStr{
"cluster_id": sourceClusterID,
"pipeline_id": "es_scroll",
"index_name": indexName,
"unique_index_name": taskItem.Metadata.Labels["unique_index_name"],
},
},
Config: util.MapStr{
"name": scrollID,
"logging": util.MapStr{
"enabled": true,
},
"labels": util.MapStr{
"parent_task_id": pids,
"unique_index_name": taskItem.Metadata.Labels["unique_index_name"],
"retry_no": taskItem.RetryTimes,
},
"auto_start": true,
"keep_running": false,
"processor": []util.MapStr{
{
"es_scroll": util.MapStr{
"remove_type": docType == "",
"slice_size": getMapValue(cfgm, "source.slice_size"),
"batch_size": getMapValue(cfgm, "source.batch_size"),
"indices": indexName,
"elasticsearch": sourceClusterID,
"elasticsearch_config": util.MapStr{
"name": sourceClusterID,
"enabled": true,
"endpoint": esConfig.Endpoint,
"basic_auth": esConfig.BasicAuth,
},
"queue": util.MapStr{
"name": scrollID,
"labels": util.MapStr{
"migration_task_id": taskItem.ID,
},
},
"partition_size": 20,
"scroll_time": getMapValue(cfgm, "source.scroll_time"),
"query_dsl": scrollQueryDsl,
"index_rename": getMapValue(cfgm, "source.index_rename"),
"type_rename": getMapValue(cfgm, "source.type_rename"),
},
},
},
},
}
scrollTask.ID = scrollID
bulkID := util.GetUUID()
bulkTask = &task2.Task{
ParentId: pids,
Runnable: true,
Cancellable: true,
Metadata: task2.Metadata{
Type: "pipeline",
Labels: util.MapStr{
"cluster_id": targetClusterID,
"pipeline_id": "bulk_indexing",
"index_name": indexName,
"unique_index_name": taskItem.Metadata.Labels["unique_index_name"],
},
},
Config: util.MapStr{
"name": bulkID,
"logging": util.MapStr{
"enabled": true,
},
"labels": util.MapStr{
"parent_task_id": pids,
"unique_index_name": taskItem.Metadata.Labels["unique_index_name"],
"retry_no": taskItem.RetryTimes,
},
"auto_start": true,
"keep_running": false,
"processor": []util.MapStr{
{
"bulk_indexing": util.MapStr{
"detect_active_queue": false,
"bulk": util.MapStr{
"batch_size_in_mb": getMapValue(cfgm, "target.bulk.batch_size_in_mb"),
"batch_size_in_docs": getMapValue(cfgm, "target.bulk.batch_size_in_docs"),
"invalid_queue": "bulk_indexing_400",
//"retry_rules": util.MapStr{
// "default": false,
// "retry_4xx": false,
// "retry_429": true,
//},
},
"max_worker_size": getMapValue(cfgm, "target.bulk.max_worker_size"),
"num_of_slices": getMapValue(cfgm, "target.bulk.slice_size"),
"idle_timeout_in_seconds": getMapValue(cfgm, "target.bulk.idle_timeout_in_seconds"),
"elasticsearch": targetClusterID,
"elasticsearch_config": util.MapStr{
"name": targetClusterID,
"enabled": true,
"endpoint": esTargetConfig.Endpoint,
"basic_auth": esTargetConfig.BasicAuth,
},
"queues": util.MapStr{
"type": "scroll_docs",
"migration_task_id": taskItem.ID,
},
},
},
},
},
}
bulkTask.ID = bulkID
}
instance, err := p.getPreferenceInstance(taskItem.ParentId[0])
if err != nil {
return fmt.Errorf("get preference intance error: %w", err)
}
if p.state[instance.ID].Total >= p.config.MaxTasksPerInstance {
log.Infof("hit max tasks per instance with %d, skip dispatch", p.config.MaxTasksPerInstance)
return nil
}
scrollTask.Metadata.Labels["execution_instance_id"] = instance.ID
bulkTask.Metadata.Labels["execution_instance_id"] = instance.ID
//try to clear queue when tasks are retried
if taskItem.RetryTimes > 0 {
selector := util.MapStr{
"labels": util.MapStr{
"migration_task_id": taskItem.ID,
},
}
_ = instance.DeleteQueueBySelector(selector)
}
//call instance api to create pipeline task
err = instance.CreatePipeline(util.MustToJSONBytes(scrollTask.Config))
if err != nil {
return err
}
//err = instance.CreatePipeline(util.MustToJSONBytes(bulkTask.Config))
//if err != nil {
// return err
//}
//save task info
if taskItem.Metadata.Labels["is_split"] != true {
err = orm.Create(nil, scrollTask)
if err != nil {
return fmt.Errorf("create scroll pipeline task error: %w", err)
}
err = orm.Create(nil, bulkTask)
if err != nil {
return fmt.Errorf("create bulk_indexing pipeline task error: %w", err)
}
}else{
err = orm.Update(nil, scrollTask)
if err != nil {
return fmt.Errorf("update scroll pipeline task error: %w", err)
}
err = orm.Update(nil, bulkTask)
if err != nil {
return fmt.Errorf("update bulk_indexing pipeline task error: %w", err)
}
}
taskItem.Metadata.Labels["is_split"] = true
taskItem.Metadata.Labels["running_phase"] = 1
//update dispatcher state
instanceState := p.state[instance.ID]
instanceState.Total = instanceState.Total + 1
p.state[instance.ID] = instanceState
//update sub migration task status to ready and save task log
taskItem.Metadata.Labels["execution_instance_id"] = instance.ID
taskItem.Metadata.Labels["index_docs"] = 0
taskItem.Metadata.Labels["scrolled_docs"] = 0
taskItem.Status = task2.StatusRunning
taskItem.StartTimeInMillis = time.Now().UnixMilli()
taskLog := &task2.Log{
ID: util.GetUUID(),
TaskId: taskItem.ID,
Status: task2.StatusRunning,
Type: taskItem.Metadata.Type,
Config: taskItem.Config,
Result: &task2.LogResult{
Success: true,
},
Message: fmt.Sprintf("dispatch task [%s] to instance ", taskItem.ID),
Timestamp: time.Now().UTC(),
}
p.saveTaskAndWriteLog(taskItem, taskLog, "wait_for")
return nil
}
func getMapValue(m util.MapStr, key string) interface{}{
v, _ := m.GetValue(key)
return v
}
func (p *DispatcherProcessor) getPreferenceInstance(majorTaskID string) (instance model.Instance, err error) {
majorTask := task2.Task{}
majorTask.ID = majorTaskID
_, err = orm.Get(&majorTask)
if err != nil {
return
}
cfg := ElasticDataConfig{}
buf, err := util.ToJSONBytes(majorTask.Config)
if err != nil {
return
}
err = util.FromJSONBytes(buf, &cfg)
if err != nil {
return
}
var (
total = math.MaxInt
tempInst = model.Instance{}
)
for _, node := range cfg.Settings.Execution.Nodes.Permit {
if p.state[node.ID].Total < total {
if p.config.CheckInstanceAvailable {
tempInst.ID = node.ID
_, err = orm.Get(&tempInst)
if err != nil {
log.Error(err)
continue
}
err = tempInst.TryConnectWithTimeout(time.Second)
if err != nil {
log.Debugf("instance [%s] is not available, caused by: %v", tempInst.ID, err)
continue
}
}
instance.ID = node.ID
total = p.state[node.ID].Total
}
}
if instance.ID == "" && p.config.CheckInstanceAvailable {
return instance, fmt.Errorf("no available instance")
}
if instance.ID == tempInst.ID {
return tempInst, nil
}
_, err = orm.Get(&instance)
return
}
func (p *DispatcherProcessor) getMigrationTasks(size int)([]task2.Task, error){
majorTaskQ := util.MapStr{
"bool": util.MapStr{
"must": []util.MapStr{
{
"term": util.MapStr{
"metadata.labels.business_id": "cluster_migration",
},
},
{
"terms": util.MapStr{
"status": []string{task2.StatusReady, task2.StatusRunning, task2.StatusPendingStop},
},
},
},
},
}
subTaskQ := util.MapStr{
"bool": util.MapStr{
"must": []util.MapStr{
{
"term": util.MapStr{
"metadata.labels.business_id": "index_migration",
},
},
{
"terms": util.MapStr{
"status": []string{task2.StatusReady, task2.StatusRunning, task2.StatusPendingStop},
},
},
},
},
}
queryDsl := util.MapStr{
"size": size,
"sort": []util.MapStr{
{
"created": util.MapStr{
"order": "asc",
},
},
},
"query": util.MapStr{
"bool": util.MapStr{
"should": []util.MapStr{
majorTaskQ, subTaskQ,
},
"minimum_should_match": 1,
},
},
}
return p.getTasks(queryDsl)
}
func (p *DispatcherProcessor) saveTaskAndWriteLog(taskItem *task2.Task, logItem *task2.Log, refresh string) {
esClient := elastic.GetClient(p.config.Elasticsearch)
_, err := esClient.Index(p.config.IndexName,"", taskItem.ID, taskItem, refresh )
if err != nil{
log.Error(err)
}
if logItem != nil {
event.SaveLog(event.Event{
Metadata: event.EventMetadata{
Category: "migration",
Name: "logging",
Datatype: "event",
Labels: util.MapStr{
"task_id": logItem.TaskId,
"parent_task_id": taskItem.ParentId,
"retry_no": taskItem.RetryTimes,
},
},
Fields: util.MapStr{
"migration": util.MapStr{
"logging": util.MapStr{
"config": logItem.Config,
"context": logItem.Context,
"status": logItem.Status,
"message": logItem.Message,
"result": logItem.Result,
},
},
},
})
}
}
func (p *DispatcherProcessor) splitMajorMigrationTask(taskItem *task2.Task) error {
if taskItem.Metadata.Labels == nil {
return fmt.Errorf("empty metadata labels, unexpected cluster migration task: %s", util.MustToJSON(taskItem))
}
if taskItem.Metadata.Labels["is_split"] == true {
return nil
}
if taskItem.Metadata.Labels["business_id"] != "cluster_migration" {
log.Tracef("got unexpect task type of %s with task id [%s] in cluster migration processor", taskItem.Metadata.Type, taskItem.ID)
return nil
}
buf := util.MustToJSONBytes(taskItem.Config)
clusterMigrationTask := ElasticDataConfig{}
err := util.FromJSONBytes(buf, &clusterMigrationTask)
if err != nil {
return err
}
defer func() {
taskItem.Config = clusterMigrationTask
}()
esSourceClient := elastic.GetClient(clusterMigrationTask.Cluster.Source.Id)
esTargetClient := elastic.GetClient(clusterMigrationTask.Cluster.Target.Id)
for _, index := range clusterMigrationTask.Indices {
source := util.MapStr{
"cluster_id": clusterMigrationTask.Cluster.Source.Id,
"indices": index.Source.Name,
"slice_size": clusterMigrationTask.Settings.Scroll.SliceSize,
"batch_size": clusterMigrationTask.Settings.Scroll.Docs,
"scroll_time": clusterMigrationTask.Settings.Scroll.Timeout,
}
if index.IndexRename != nil {
source["index_rename"] = index.IndexRename
}
if index.Target.Name != "" {
source["index_rename"] = util.MapStr{
index.Source.Name: index.Target.Name,
}
}
if index.TypeRename != nil {
source["type_rename"] = index.TypeRename
}
if v, ok := index.RawFilter.(string); ok {
source["query_string"] = v
}else{
source["query_dsl"] = index.RawFilter
if index.Source.DocType != "" {
if index.Target.DocType != "" {
source["type_rename"] = util.MapStr{
index.Source.DocType: index.Target.DocType,
}
}
must := []interface{}{
util.MapStr{
"terms": util.MapStr{
"_type": []string{index.Source.DocType},
},
},
}
if index.RawFilter != nil {
must = append(must, index.RawFilter)
}
source["query_dsl"] = util.MapStr{
"bool": util.MapStr{
"must": must,
},
}
}else{
if esSourceClient.GetMajorVersion() >= 8 {
source["type_rename"] = util.MapStr{
"*": index.Target.DocType,
}
}
}
}
var targetMust []interface{}
if index.RawFilter != nil {
targetMust = append(targetMust, index.RawFilter)
}
if index.Target.DocType != "" && esTargetClient.GetMajorVersion() < 8 {
targetMust = append(targetMust, util.MapStr{
"terms": util.MapStr{
"_type": []string{index.Target.DocType},
},
})
}
target := util.MapStr{
"cluster_id": clusterMigrationTask.Cluster.Target.Id,
"bulk": util.MapStr{
"batch_size_in_mb": clusterMigrationTask.Settings.Bulk.StoreSizeInMB,
"batch_size_in_docs": clusterMigrationTask.Settings.Bulk.Docs,
"max_worker_size": clusterMigrationTask.Settings.Bulk.MaxWorkerSize,
"idle_timeout_in_seconds": clusterMigrationTask.Settings.Bulk.IdleTimeoutInSeconds,
"slice_size": clusterMigrationTask.Settings.Bulk.SliceSize,
},
}
indexParameters := util.MapStr{
"source": source,
"target": target,
}
indexMigrationTask := task2.Task{
ParentId: []string{taskItem.ID},
Cancellable: true,
Runnable: false,
Status: task2.StatusReady,
StartTimeInMillis: time.Now().UnixMilli(),
Metadata: task2.Metadata{
Type: "pipeline",
Labels: util.MapStr{
"business_id": "index_migration",
"source_cluster_id": clusterMigrationTask.Cluster.Source.Id,
"target_cluster_id": clusterMigrationTask.Cluster.Target.Id,
"partition_count": 1,
"index_name": index.Source.Name,
"unique_index_name": index.Source.GetUniqueIndexName(),
},
},
Config: indexParameters,
}
indexMigrationTask.ID = util.GetUUID()
if index.Partition != nil {
partitionQ := &elastic.PartitionQuery{
IndexName: index.Source.Name,
FieldName: index.Partition.FieldName,
FieldType: index.Partition.FieldType,
Step: index.Partition.Step,
//Filter: index.RawFilter,
Filter: source["query_dsl"],
}
partitions, err := elastic.GetPartitions(partitionQ, esSourceClient)
if err != nil {
return err
}
if partitions == nil || len(partitions) == 0{
return fmt.Errorf("empty data with filter: %s", util.MustToJSON(index.RawFilter))
}
var (
partitionID int
)
for _, partition := range partitions {
//skip empty partition
if partition.Docs <= 0 {
continue
}
partitionID++
partitionSource := util.MapStr{
"start": partition.Start,
"end": partition.End,
"doc_count": partition.Docs,
"step": index.Partition.Step,
"partition_id": partitionID,
}
for k, v := range source{
if k == "query_string"{
continue
}
partitionSource[k] = v
}
partitionSource["query_dsl"] = partition.Filter
var must []interface{}
if partition.Other {
must = append(must, partition.Filter)
}else{
must = append(must, util.MapStr{
"range": util.MapStr{
index.Partition.FieldName: util.MapStr{
"gte": partition.Start,
"lt": partition.End,
},
},
})
}
if targetMust != nil {
must = append(must, targetMust...)
}
if len(must) > 0 {
target["query_dsl"] = util.MapStr{
"bool": util.MapStr{
"must": must,
},
}
}
partitionMigrationTask := task2.Task{
ParentId: []string{taskItem.ID},
Cancellable: false,
Runnable: true,
Status: task2.StatusReady,
Metadata: task2.Metadata{
Type: "pipeline",
Labels: util.MapStr{
"business_id": "index_migration",
"source_cluster_id": clusterMigrationTask.Cluster.Source.Id,
"target_cluster_id": clusterMigrationTask.Cluster.Target.Id,
"index_name": index.Source.Name,
"unique_index_name": index.Source.GetUniqueIndexName(),
},
},
Config: util.MapStr{
"source": partitionSource,
"target": target,
"execution": clusterMigrationTask.Settings.Execution,
},
}
partitionMigrationTask.ID = util.GetUUID()
err = orm.Create(nil, &partitionMigrationTask)
delete(target, "query_dsl")
if err != nil {
return fmt.Errorf("store index migration task(partition) error: %w", err)
}
}
}else{
source["doc_count"] = index.Source.Docs
err = orm.Create(nil, &indexMigrationTask)
if err != nil {
return fmt.Errorf("store index migration task error: %w", err)
}
}
}
return nil
}
func (p *DispatcherProcessor) getPipelineTasks(subTaskID string) ([]task2.Task, error){
queryDsl := util.MapStr{
"size": 2,
"query": util.MapStr{
"bool": util.MapStr{
"must": []util.MapStr{
{
"term": util.MapStr{
"parent_id": util.MapStr{
"value": subTaskID,
},
},
},
},
},
},
}
return p.getTasks(queryDsl)
}
func (p *DispatcherProcessor) getTasks(query interface{}) ([]task2.Task, error){
esClient := elastic.GetClient(p.config.Elasticsearch)
res, err := esClient.SearchWithRawQueryDSL(p.config.IndexName, util.MustToJSONBytes(query))
if err != nil {
return nil, err
}
if res.GetTotal() == 0 {
return nil, nil
}
var migrationTasks []task2.Task
for _, hit := range res.Hits.Hits {
buf, err := util.ToJSONBytes(hit.Source)
if err != nil {
return nil, err
}
tk := task2.Task{}
err = util.FromJSONBytes(buf, &tk)
if err != nil {
return nil, err
}
migrationTasks = append(migrationTasks, tk)
}
return migrationTasks, nil
}
func (p *DispatcherProcessor) getTaskCompleteState(subTask *task2.Task) (*TaskCompleteState, error){
ptasks, err := p.getPipelineTasks(subTask.ID)
if err != nil {
return nil, err
}
var pids []string
for _, t := range ptasks {
pids = append(pids, t.ID)
}
if len(pids) == 0 {
return nil, fmt.Errorf("pipeline task not found")
}
query := util.MapStr{
"sort": []util.MapStr{
{
"timestamp": util.MapStr{
"order": "desc",
},
},
{
"payload.pipeline.logging.steps": util.MapStr{
"order": "desc",
},
},
},
"collapse": util.MapStr{
"field": "metadata.labels.task_id",
},
"query": util.MapStr{
"bool": util.MapStr{
"must": []util.MapStr{
{
"terms": util.MapStr{
"metadata.labels.task_id": pids,
},
},
{
"range": util.MapStr{
"timestamp": util.MapStr{
"gt": subTask.StartTimeInMillis - 30*1000,
},
},
},
},
},
},
}
esClient := elastic.GetClient(p.config.Elasticsearch)
res, err := esClient.SearchWithRawQueryDSL(p.config.LogIndexName, util.MustToJSONBytes(query))
if err != nil {
return nil, err
}
var (
cfg map[string]interface{}
ok bool
)
if cfg, ok = subTask.Config.(map[string]interface{}); !ok {
return nil, fmt.Errorf("got wrong config of task %v", *subTask)
}
totalDocs, err := util.MapStr(cfg).GetValue("source.doc_count")
if err != nil {
return nil, err
}
var (
indexDocs float64
successDocs float64
scrolledDocs interface{}
state TaskCompleteState
)
state.TotalDocs = totalDocs
state.PipelineIds = pids
for _, hit := range res.Hits.Hits {
resultErr, _ := util.MapStr(hit.Source).GetValue("payload.pipeline.logging.result.error")
if errStr, ok := resultErr.(string); ok && errStr != "" {
state.Error = errStr
state.IsComplete = true
state.ClearPipeline = true
}
for _, key := range []string{"payload.pipeline.logging.context.bulk_indexing.success.count", "payload.pipeline.logging.context.bulk_indexing.failure.count", "payload.pipeline.logging.context.bulk_indexing.invalid.count"}{
v, err := util.MapStr(hit.Source).GetValue(key)
if err == nil {
if fv, ok := v.(float64); ok {
indexDocs += fv
if key == "payload.pipeline.logging.context.bulk_indexing.success.count" {
successDocs = fv
state.SuccessDocs = successDocs
}
}
}else{
break
}
}
v, err := util.MapStr(hit.Source).GetValue("payload.pipeline.logging.context.es_scroll.scrolled_docs")
if err == nil {
scrolledDocs = v
if vv, ok := v.(float64); ok {
state.ScrolledDocs = vv
}
}
}
if totalDocs == scrolledDocs {
state.RunningPhase = 1
}
if (totalDocs == indexDocs || successDocs == totalDocs) && totalDocs == scrolledDocs {
if successDocs != totalDocs {
if state.Error == "" {
if successDocs > 0 {
state.Error = "partial complete"
}else{
state.Error = "invalid request"
}
}
}
state.IsComplete = true
return &state, nil
}
//check instance is available
if subTask.Metadata.Labels != nil {
if instID, ok := subTask.Metadata.Labels["execution_instance_id"].(string); ok {
inst := model.Instance{}
inst.ID = instID
_, err = orm.Get(&inst)
if err != nil {
return nil, err
}
err = inst.TryConnectWithTimeout(time.Second * 3)
if err != nil && errors.Is(err, syscall.ECONNREFUSED) {
state.Error = fmt.Errorf("instance [%s] is unavailable: %w", instID, err).Error()
state.IsComplete = true
}
}
}
return &state, nil
}
func (p *DispatcherProcessor) getMajorTaskState(majorTask *task2.Task) (taskState MajorTaskState, err error){
query := util.MapStr{
"size": 0,
"aggs": util.MapStr{
"total_docs": util.MapStr{
"sum": util.MapStr{
"field": "metadata.labels.index_docs",
},
},
"grp": util.MapStr{
"terms": util.MapStr{
"field": "status",
},
},
},
"query": util.MapStr{
"bool": util.MapStr{
"must": []util.MapStr{
{
"term": util.MapStr{
"parent_id": util.MapStr{
"value": majorTask.ID,
},
},
},
{
"term": util.MapStr{
"metadata.labels.business_id": util.MapStr{
"value": "index_migration",
},
},
},
},
},
},
}
esClient := elastic.GetClient(p.config.Elasticsearch)
res, err := esClient.SearchWithRawQueryDSL( p.config.IndexName, util.MustToJSONBytes(query))
if err != nil {
return taskState, err
}
if v, ok := res.Aggregations["total_docs"].Value.(float64); ok {
taskState.IndexDocs = v
}
var (
hasError bool
)
for _, bk := range res.Aggregations["grp"].Buckets {
if bk["key"] == task2.StatusReady || bk["key"] == task2.StatusRunning {
taskState.Status = task2.StatusRunning
return taskState, nil
}
if bk["key"] == task2.StatusError {
hasError = true
}
}
if hasError {
taskState.Status = task2.StatusError
}else {
taskState.Status = task2.StatusComplete
}
return taskState, nil
}
func (p *DispatcherProcessor) getInstanceTaskState()(map[string]DispatcherState, error){
query := util.MapStr{
"size": 0,
"aggs": util.MapStr{
"grp": util.MapStr{
"terms": util.MapStr{
"field": "metadata.labels.execution_instance_id",
"size": 1000,
},
},
},
"query": util.MapStr{
"bool": util.MapStr{
"must": []util.MapStr{
{
"term": util.MapStr{
"metadata.labels.business_id": util.MapStr{
"value": "index_migration",
},
},
},
{
"term": util.MapStr{
"status": util.MapStr{
"value": task2.StatusRunning,
},
},
},
},
},
},
}
esClient := elastic.GetClient(p.config.Elasticsearch)
res, err := esClient.SearchWithRawQueryDSL(p.config.IndexName, util.MustToJSONBytes(query))
if err != nil {
return nil, err
}
state := map[string]DispatcherState{}
for _, bk := range res.Aggregations["grp"].Buckets {
if key, ok := bk["key"].(string); ok {
if v, ok := bk["doc_count"].(float64); ok {
state[key] = DispatcherState{
Total: int(v),
}
}
}
}
return state, nil
}