before use touch
This commit is contained in:
yedongfu
parent
ccddf91083
commit
6a3c429dd1
@ -1,10 +1,6 @@
|
||||
package dtmsvr
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"strings"
|
||||
"time"
|
||||
|
||||
"github.com/sirupsen/logrus"
|
||||
"github.com/yedf/dtm/common"
|
||||
"gorm.io/gorm"
|
||||
@ -19,33 +15,13 @@ func saveCommitted(m *TransGlobalModel) {
|
||||
writeTransLog(m.Gid, "save committed", m.Status, "", m.Data)
|
||||
dbr := db.Must().Clauses(clause.OnConflict{
|
||||
DoNothing: true,
|
||||
}).Create(&m)
|
||||
}).Create(m)
|
||||
if dbr.RowsAffected == 0 {
|
||||
writeTransLog(m.Gid, "change status", m.Status, "", "")
|
||||
db.Must().Model(&m).Where("status=?", "prepared").Update("status", "committed")
|
||||
db.Must().Model(m).Where("status=?", "prepared").Update("status", "committed")
|
||||
}
|
||||
if m.TransType == "saga" {
|
||||
nsteps := []TransBranchModel{}
|
||||
steps := []M{}
|
||||
common.MustUnmarshalString(m.Data, &steps)
|
||||
for _, step := range steps {
|
||||
nsteps = append(nsteps, TransBranchModel{
|
||||
Gid: m.Gid,
|
||||
Branch: fmt.Sprintf("%d", len(nsteps)+1),
|
||||
Data: step["data"].(string),
|
||||
Url: step["compensate"].(string),
|
||||
BranchType: "compensate",
|
||||
Status: "prepared",
|
||||
})
|
||||
nsteps = append(nsteps, TransBranchModel{
|
||||
Gid: m.Gid,
|
||||
Branch: fmt.Sprintf("%d", len(nsteps)+1),
|
||||
Data: step["data"].(string),
|
||||
Url: step["action"].(string),
|
||||
BranchType: "action",
|
||||
Status: "prepared",
|
||||
})
|
||||
}
|
||||
nsteps := GetTrans(m).GetDataBranches()
|
||||
if len(nsteps) > 0 {
|
||||
writeTransLog(m.Gid, "save steps", m.Status, "", common.MustMarshalString(nsteps))
|
||||
db.Must().Clauses(clause.OnConflict{
|
||||
DoNothing: true,
|
||||
@ -79,162 +55,5 @@ func innerProcessTrans(trans *TransGlobalModel) (rerr error) {
|
||||
branches := []TransBranchModel{}
|
||||
db := dbGet()
|
||||
db.Must().Where("gid=?", trans.Gid).Order("id asc").Find(&branches)
|
||||
if trans.TransType == "saga" {
|
||||
return innerProcessCommittedSaga(trans, db, branches)
|
||||
} else if trans.TransType == "xa" {
|
||||
return innerProcessCommittedXa(trans, db, branches)
|
||||
}
|
||||
panic(fmt.Errorf("unkown trans type: %s", trans.TransType))
|
||||
}
|
||||
|
||||
func innerProcessCommittedXa(trans *TransGlobalModel, db *common.MyDb, branches []TransBranchModel) error {
|
||||
gid := trans.Gid
|
||||
if trans.Status == "finished" {
|
||||
return nil
|
||||
}
|
||||
if trans.Status == "committed" {
|
||||
for _, branch := range branches {
|
||||
if branch.Status == "finished" {
|
||||
continue
|
||||
}
|
||||
db.Must().Model(&TransGlobalModel{}).Where("gid=?", gid).Update("gid", gid) // 更新update_time，避免被定时任务再次
|
||||
resp, err := common.RestyClient.R().SetBody(M{
|
||||
"branch": branch.Branch,
|
||||
"action": "commit",
|
||||
"gid": branch.Gid,
|
||||
}).Post(branch.Url)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
body := resp.String()
|
||||
if !strings.Contains(body, "SUCCESS") {
|
||||
return fmt.Errorf("bad response: %s", body)
|
||||
}
|
||||
writeTransLog(gid, "step finished", "finished", branch.Branch, "")
|
||||
db.Must().Model(&branch).Where("status=?", "prepared").Updates(M{
|
||||
"status": "finished",
|
||||
"finish_time": time.Now(),
|
||||
})
|
||||
}
|
||||
writeTransLog(gid, "xa finished", "finished", "", "")
|
||||
db.Must().Model(&TransGlobalModel{}).Where("gid=? and status=?", gid, "committed").Updates(M{
|
||||
"status": "finished",
|
||||
"finish_time": time.Now(),
|
||||
})
|
||||
} else if trans.Status == "prepared" { // 未commit直接处理的情况为回滚场景
|
||||
for _, branch := range branches {
|
||||
if branch.Status == "rollbacked" {
|
||||
continue
|
||||
}
|
||||
db.Must().Model(&TransGlobalModel{}).Where("gid=?", gid).Update("gid", gid) // 更新update_time，避免被定时任务再次
|
||||
resp, err := common.RestyClient.R().SetBody(M{
|
||||
"branch": branch.Branch,
|
||||
"action": "rollback",
|
||||
"gid": branch.Gid,
|
||||
}).Post(branch.Url)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
body := resp.String()
|
||||
if !strings.Contains(body, "SUCCESS") {
|
||||
return fmt.Errorf("bad response: %s", body)
|
||||
}
|
||||
writeTransLog(gid, "step rollbacked", "rollbacked", branch.Branch, "")
|
||||
db.Must().Model(&branch).Where("status=?", "prepared").Updates(M{
|
||||
"status": "rollbacked",
|
||||
"finish_time": time.Now(),
|
||||
})
|
||||
}
|
||||
writeTransLog(gid, "xa rollbacked", "rollbacked", "", "")
|
||||
db.Must().Model(&TransGlobalModel{}).Where("gid=? and status=?", gid, "prepared").Updates(M{
|
||||
"status": "rollbacked",
|
||||
"finish_time": time.Now(),
|
||||
})
|
||||
} else {
|
||||
return fmt.Errorf("bad trans status: %s", trans.Status)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func innerProcessCommittedSaga(trans *TransGlobalModel, db *common.MyDb, branches []TransBranchModel) error {
|
||||
gid := trans.Gid
|
||||
current := 0 // 当前正在处理的步骤
|
||||
for ; current < len(branches); current++ {
|
||||
step := branches[current]
|
||||
if step.BranchType == "compensate" && step.Status == "prepared" || step.BranchType == "action" && step.Status == "finished" {
|
||||
continue
|
||||
}
|
||||
if step.BranchType == "action" && step.Status == "prepared" {
|
||||
resp, err := common.RestyClient.R().SetBody(step.Data).SetQueryParam("gid", step.Gid).Post(step.Url)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
body := resp.String()
|
||||
db.Must().Model(&TransGlobalModel{}).Where("gid=?", gid).Update("gid", gid) // 更新update_time，避免被定时任务再次
|
||||
if strings.Contains(body, "SUCCESS") {
|
||||
writeTransLog(gid, "step finished", "finished", step.Branch, "")
|
||||
dbr := db.Must().Model(&step).Where("status=?", "prepared").Updates(M{
|
||||
"status": "finished",
|
||||
"finish_time": time.Now(),
|
||||
})
|
||||
checkAffected(dbr)
|
||||
} else if strings.Contains(body, "FAIL") {
|
||||
writeTransLog(gid, "step rollbacked", "rollbacked", step.Branch, "")
|
||||
dbr := db.Must().Model(&step).Where("status=?", "prepared").Updates(M{
|
||||
"status": "rollbacked",
|
||||
"rollback_time": time.Now(),
|
||||
})
|
||||
checkAffected(dbr)
|
||||
break
|
||||
} else {
|
||||
return fmt.Errorf("unknown response: %s, will be retried", body)
|
||||
}
|
||||
}
|
||||
}
|
||||
if current == len(branches) { // saga 事务完成
|
||||
writeTransLog(gid, "saga finished", "finished", "", "")
|
||||
dbr := db.Must().Model(&TransGlobalModel{}).Where("gid=? and status=?", gid, "committed").Updates(M{
|
||||
"status": "finished",
|
||||
"finish_time": time.Now(),
|
||||
})
|
||||
checkAffected(dbr)
|
||||
return nil
|
||||
}
|
||||
for current = current - 1; current >= 0; current-- {
|
||||
step := branches[current]
|
||||
if step.BranchType != "compensate" || step.Status != "prepared" {
|
||||
continue
|
||||
}
|
||||
resp, err := common.RestyClient.R().SetBody(step.Data).SetQueryParam("gid", step.Gid).Post(step.Url)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
body := resp.String()
|
||||
if strings.Contains(body, "SUCCESS") {
|
||||
writeTransLog(gid, "step rollbacked", "rollbacked", step.Branch, "")
|
||||
dbr := db.Must().Model(&step).Where("status=?", step.Status).Updates(M{
|
||||
"status": "rollbacked",
|
||||
"rollback_time": time.Now(),
|
||||
})
|
||||
checkAffected(dbr)
|
||||
} else {
|
||||
return fmt.Errorf("expect compensate return SUCCESS")
|
||||
}
|
||||
}
|
||||
if current != -1 {
|
||||
return fmt.Errorf("saga current not -1")
|
||||
}
|
||||
writeTransLog(gid, "saga rollbacked", "rollbacked", "", "")
|
||||
dbr := db.Must().Model(&TransGlobalModel{}).Where("status=? and gid=?", "committed", gid).Updates(M{
|
||||
"status": "rollbacked",
|
||||
"rollback_time": time.Now(),
|
||||
})
|
||||
checkAffected(dbr)
|
||||
return nil
|
||||
}
|
||||
|
||||
func checkAffected(db1 *gorm.DB) {
|
||||
if db1.RowsAffected == 0 {
|
||||
panic(fmt.Errorf("duplicate updating"))
|
||||
}
|
||||
return GetTrans(trans).ProcessOnce(db, branches)
|
||||
}
|
||||
|
||||
@ -1,9 +1,11 @@
|
||||
package dtmsvr
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"time"
|
||||
|
||||
"github.com/yedf/dtm/common"
|
||||
"gorm.io/gorm"
|
||||
)
|
||||
|
||||
type M = map[string]interface{}
|
||||
@ -24,6 +26,11 @@ func (*TransGlobalModel) TableName() string {
|
||||
return "trans_global"
|
||||
}
|
||||
|
||||
func (t *TransGlobalModel) touch(db *common.MyDb) *gorm.DB {
|
||||
writeTransLog(t.Gid, "touch trans", "", "", "")
|
||||
return db.Model(&TransGlobalModel{}).Where("gid=?", t.Gid).Update("gid", t.Gid) // 更新update_time，避免被定时任务再次
|
||||
}
|
||||
|
||||
type TransBranchModel struct {
|
||||
common.ModelBase
|
||||
Gid string
|
||||
@ -39,3 +46,20 @@ type TransBranchModel struct {
|
||||
func (*TransBranchModel) TableName() string {
|
||||
return "trans_branch"
|
||||
}
|
||||
|
||||
func (t *TransBranchModel) saveStatus(db *common.MyDb, status string) *gorm.DB {
|
||||
writeTransLog(t.Gid, "step change", status, t.Branch, "")
|
||||
dbr := db.Must().Model(t).Where("status=?", t.Status).Updates(M{
|
||||
"status": status,
|
||||
"finish_time": time.Now(),
|
||||
})
|
||||
checkAffected(dbr)
|
||||
t.Status = status
|
||||
return dbr
|
||||
}
|
||||
|
||||
func checkAffected(db1 *gorm.DB) {
|
||||
if db1.RowsAffected == 0 {
|
||||
panic(fmt.Errorf("duplicate updating"))
|
||||
}
|
||||
}
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user