update wal and readdb

internal/services/configstore/command/command.go

@@ -20,7 +20,6 @@ import (
 	"path"
 
 	"github.com/sorintlab/agola/internal/db"
-	"github.com/sorintlab/agola/internal/services/configstore/common"
 	"github.com/sorintlab/agola/internal/services/configstore/readdb"
 	"github.com/sorintlab/agola/internal/services/types"
 	"github.com/sorintlab/agola/internal/util"
@@ -110,7 +109,8 @@ func (s *CommandHandler) CreateProjectGroup(ctx context.Context, projectGroup *t
 	actions := []*wal.Action{
 		{
 			ActionType: wal.ActionTypePut,
-			Path:       common.StorageProjectGroupFile(projectGroup.ID),
+			DataType:   string(types.ConfigTypeProjectGroup),
+			ID:         projectGroup.ID,
 			Data:       pcj,
 		},
 	}
@@ -185,7 +185,8 @@ func (s *CommandHandler) CreateProject(ctx context.Context, project *types.Proje
 	actions := []*wal.Action{
 		{
 			ActionType: wal.ActionTypePut,
-			Path:       common.StorageProjectFile(project.ID),
+			DataType:   string(types.ConfigTypeProject),
+			ID:         project.ID,
 			Data:       pcj,
 		},
 	}
@@ -231,7 +232,8 @@ func (s *CommandHandler) DeleteProject(ctx context.Context, projectRef string) e
 	actions := []*wal.Action{
 		{
 			ActionType: wal.ActionTypeDelete,
-			Path:       common.StorageProjectFile(project.ID),
+			DataType:   string(types.ConfigTypeProject),
+			ID:         project.ID,
 		},
 	}
 
@@ -335,12 +337,14 @@ func (s *CommandHandler) CreateUser(ctx context.Context, req *CreateUserRequest)
 	actions := []*wal.Action{
 		{
 			ActionType: wal.ActionTypePut,
-			Path:       common.StorageUserFile(user.ID),
+			DataType:   string(types.ConfigTypeUser),
+			ID:         user.ID,
 			Data:       userj,
 		},
 		{
 			ActionType: wal.ActionTypePut,
-			Path:       common.StorageProjectGroupFile(pg.ID),
+			DataType:   string(types.ConfigTypeProjectGroup),
+			ID:         pg.ID,
 			Data:       pgj,
 		},
 	}
@@ -380,7 +384,8 @@ func (s *CommandHandler) DeleteUser(ctx context.Context, userName string) error
 	actions := []*wal.Action{
 		{
 			ActionType: wal.ActionTypeDelete,
-			Path:       common.StorageUserFile(user.ID),
+			DataType:   string(types.ConfigTypeUser),
+			ID:         user.ID,
 		},
 	}
 
@@ -474,7 +479,8 @@ func (s *CommandHandler) CreateUserLA(ctx context.Context, req *CreateUserLARequ
 	actions := []*wal.Action{
 		{
 			ActionType: wal.ActionTypePut,
-			Path:       common.StorageUserFile(user.ID),
+			DataType:   string(types.ConfigTypeUser),
+			ID:         user.ID,
 			Data:       userj,
 		},
 	}
@@ -532,7 +538,8 @@ func (s *CommandHandler) DeleteUserLA(ctx context.Context, userName, laID string
 	actions := []*wal.Action{
 		{
 			ActionType: wal.ActionTypePut,
-			Path:       common.StorageUserFile(user.ID),
+			DataType:   string(types.ConfigTypeUser),
+			ID:         user.ID,
 			Data:       userj,
 		},
 	}
@@ -611,7 +618,8 @@ func (s *CommandHandler) UpdateUserLA(ctx context.Context, req *UpdateUserLARequ
 	actions := []*wal.Action{
 		{
 			ActionType: wal.ActionTypePut,
-			Path:       common.StorageUserFile(user.ID),
+			DataType:   string(types.ConfigTypeUser),
+			ID:         user.ID,
 			Data:       userj,
 		},
 	}
@@ -666,7 +674,8 @@ func (s *CommandHandler) CreateUserToken(ctx context.Context, userName, tokenNam
 	actions := []*wal.Action{
 		{
 			ActionType: wal.ActionTypePut,
-			Path:       common.StorageUserFile(user.ID),
+			DataType:   string(types.ConfigTypeUser),
+			ID:         user.ID,
 			Data:       userj,
 		},
 	}
@@ -715,7 +724,8 @@ func (s *CommandHandler) CreateRemoteSource(ctx context.Context, remoteSource *t
 	actions := []*wal.Action{
 		{
 			ActionType: wal.ActionTypePut,
-			Path:       common.StorageRemoteSourceFile(remoteSource.ID),
+			DataType:   string(types.ConfigTypeRemoteSource),
+			ID:         remoteSource.ID,
 			Data:       rsj,
 		},
 	}
@@ -755,7 +765,8 @@ func (s *CommandHandler) DeleteRemoteSource(ctx context.Context, remoteSourceNam
 	actions := []*wal.Action{
 		{
 			ActionType: wal.ActionTypeDelete,
-			Path:       common.StorageRemoteSourceFile(remoteSource.ID),
+			DataType:   string(types.ConfigTypeRemoteSource),
+			ID:         remoteSource.ID,
 		},
 	}
 
@@ -814,12 +825,14 @@ func (s *CommandHandler) CreateOrg(ctx context.Context, org *types.Organization)
 	actions := []*wal.Action{
 		{
 			ActionType: wal.ActionTypePut,
-			Path:       common.StorageOrgFile(org.ID),
+			DataType:   string(types.ConfigTypeOrg),
+			ID:         org.ID,
 			Data:       orgj,
 		},
 		{
 			ActionType: wal.ActionTypePut,
-			Path:       common.StorageProjectGroupFile(pg.ID),
+			DataType:   string(types.ConfigTypeProjectGroup),
+			ID:         pg.ID,
 			Data:       pgj,
 		},
 	}
@@ -861,14 +874,16 @@ func (s *CommandHandler) DeleteOrg(ctx context.Context, orgName string) error {
 	actions := []*wal.Action{
 		{
 			ActionType: wal.ActionTypeDelete,
-			Path:       common.StorageOrgFile(org.ID),
+			DataType:   string(types.ConfigTypeOrg),
+			ID:         org.ID,
 		},
 	}
 	// delete all org projects
 	for _, project := range projects {
 		actions = append(actions, &wal.Action{
 			ActionType: wal.ActionTypeDelete,
-			Path:       common.StorageProjectFile(project.ID),
+			DataType:   string(types.ConfigTypeProject),
+			ID:         project.ID,
 		})
 	}
 
@@ -931,7 +946,8 @@ func (s *CommandHandler) CreateSecret(ctx context.Context, secret *types.Secret)
 	actions := []*wal.Action{
 		{
 			ActionType: wal.ActionTypePut,
-			Path:       common.StorageSecretFile(secret.ID),
+			DataType:   string(types.ConfigTypeSecret),
+			ID:         secret.ID,
 			Data:       secretj,
 		},
 	}
@@ -977,7 +993,8 @@ func (s *CommandHandler) DeleteSecret(ctx context.Context, parentType types.Conf
 	actions := []*wal.Action{
 		{
 			ActionType: wal.ActionTypeDelete,
-			Path:       common.StorageSecretFile(secret.ID),
+			DataType:   string(types.ConfigTypeSecret),
+			ID:         secret.ID,
 		},
 	}
 
@@ -1040,7 +1057,8 @@ func (s *CommandHandler) CreateVariable(ctx context.Context, variable *types.Var
 	actions := []*wal.Action{
 		{
 			ActionType: wal.ActionTypePut,
-			Path:       common.StorageVariableFile(variable.ID),
+			DataType:   string(types.ConfigTypeVariable),
+			ID:         variable.ID,
 			Data:       variablej,
 		},
 	}
@@ -1085,7 +1103,8 @@ func (s *CommandHandler) DeleteVariable(ctx context.Context, parentType types.Co
 	actions := []*wal.Action{
 		{
 			ActionType: wal.ActionTypeDelete,
-			Path:       common.StorageVariableFile(variable.ID),
+			DataType:   string(types.ConfigTypeVariable),
+			ID:         variable.ID,
 		},
 	}
 

internal/services/configstore/readdb/readdb.go

@@ -178,9 +178,11 @@ func (r *ReadDB) SyncFromFiles() (string, error) {
 				}
 				f.Close()
 
+				configType, id := common.PathToTypeID(obj)
 				action := &wal.Action{
 					ActionType: wal.ActionTypePut,
-					Path:       obj,
+					DataType:   string(configType),
+					ID:         id,
 					Data:       data,
 				}
 				if err := r.applyAction(tx, action); err != nil {
@@ -616,11 +618,9 @@ func (r *ReadDB) applyWal(tx *db.Tx, walDataFileID string) error {
 }
 
 func (r *ReadDB) applyAction(tx *db.Tx, action *wal.Action) error {
-	configType, ID := common.PathToTypeID(action.Path)
-
 	switch action.ActionType {
 	case wal.ActionTypePut:
-		switch configType {
+		switch types.ConfigType(action.DataType) {
 		case types.ConfigTypeUser:
 			if err := r.insertUser(tx, action.Data); err != nil {
 				return err
@@ -652,40 +652,40 @@ func (r *ReadDB) applyAction(tx *db.Tx, action *wal.Action) error {
 		}
 
 	case wal.ActionTypeDelete:
-		switch configType {
+		switch types.ConfigType(action.DataType) {
 		case types.ConfigTypeUser:
-			r.log.Debugf("deleting user with id: %s", ID)
+			r.log.Debugf("deleting user with id: %s", action.ID)
-			if err := r.deleteUser(tx, ID); err != nil {
+			if err := r.deleteUser(tx, action.ID); err != nil {
 				return err
 			}
 		case types.ConfigTypeOrg:
-			r.log.Debugf("deleting org with id: %s", ID)
+			r.log.Debugf("deleting org with id: %s", action.ID)
-			if err := r.deleteOrg(tx, ID); err != nil {
+			if err := r.deleteOrg(tx, action.ID); err != nil {
 				return err
 			}
 		case types.ConfigTypeProjectGroup:
-			r.log.Debugf("deleting project group with id: %s", ID)
+			r.log.Debugf("deleting project group with id: %s", action.ID)
-			if err := r.deleteProjectGroup(tx, ID); err != nil {
+			if err := r.deleteProjectGroup(tx, action.ID); err != nil {
 				return err
 			}
 		case types.ConfigTypeProject:
-			r.log.Debugf("deleting project with id: %s", ID)
+			r.log.Debugf("deleting project with id: %s", action.ID)
-			if err := r.deleteProject(tx, ID); err != nil {
+			if err := r.deleteProject(tx, action.ID); err != nil {
 				return err
 			}
 		case types.ConfigTypeRemoteSource:
-			r.log.Debugf("deleting remote source with id: %s", ID)
+			r.log.Debugf("deleting remote source with id: %s", action.ID)
-			if err := r.deleteRemoteSource(tx, ID); err != nil {
+			if err := r.deleteRemoteSource(tx, action.ID); err != nil {
 				return err
 			}
 		case types.ConfigTypeSecret:
-			r.log.Debugf("deleting secret with id: %s", ID)
+			r.log.Debugf("deleting secret with id: %s", action.ID)
-			if err := r.deleteSecret(tx, ID); err != nil {
+			if err := r.deleteSecret(tx, action.ID); err != nil {
 				return err
 			}
 		case types.ConfigTypeVariable:
-			r.log.Debugf("deleting variable with id: %s", ID)
+			r.log.Debugf("deleting variable with id: %s", action.ID)
-			if err := r.deleteVariable(tx, ID); err != nil {
+			if err := r.deleteVariable(tx, action.ID); err != nil {
 				return err
 			}
 		}

internal/services/runservice/scheduler/command/command.go

@@ -20,11 +20,13 @@ import (
 	"time"
 
 	uuid "github.com/satori/go.uuid"
+	"github.com/sorintlab/agola/internal/db"
 	"github.com/sorintlab/agola/internal/etcd"
 	"github.com/sorintlab/agola/internal/objectstorage"
 	"github.com/sorintlab/agola/internal/runconfig"
 	"github.com/sorintlab/agola/internal/sequence"
 	"github.com/sorintlab/agola/internal/services/runservice/scheduler/common"
+	"github.com/sorintlab/agola/internal/services/runservice/scheduler/readdb"
 	"github.com/sorintlab/agola/internal/services/runservice/scheduler/store"
 	"github.com/sorintlab/agola/internal/services/runservice/types"
 	"github.com/sorintlab/agola/internal/util"
@@ -37,14 +39,16 @@ import (
 type CommandHandler struct {
 	log    *zap.SugaredLogger
 	e      *etcd.Store
+	readDB *readdb.ReadDB
 	lts    *objectstorage.ObjStorage
 	wal    *wal.WalManager
 }
 
-func NewCommandHandler(logger *zap.Logger, e *etcd.Store, lts *objectstorage.ObjStorage, wal *wal.WalManager) *CommandHandler {
+func NewCommandHandler(logger *zap.Logger, e *etcd.Store, readDB *readdb.ReadDB, lts *objectstorage.ObjStorage, wal *wal.WalManager) *CommandHandler {
 	return &CommandHandler{
 		log:    logger.Sugar(),
 		e:      e,
+		readDB: readDB,
 		lts:    lts,
 		wal:    wal,
 	}
@@ -293,9 +297,9 @@ func (s *CommandHandler) saveRun(ctx context.Context, rb *types.RunBundle, runcg
 	rc := rb.Rc
 	rd := rb.Rd
 
-	c, cgt, err := store.LTSGetRunCounter(s.wal, run.Group)
+	c, cgt, err := s.getRunCounter(run.Group)
 	s.log.Infof("c: %d, cgt: %s", c, util.Dump(cgt))
-	if err != nil && err != objectstorage.ErrNotExist {
+	if err != nil {
 		return err
 	}
 	c++
@@ -450,3 +454,28 @@ func (s *CommandHandler) DeleteExecutor(ctx context.Context, executorID string)
 
 	return nil
 }
+
+func (s *CommandHandler) getRunCounter(group string) (uint64, *wal.ChangeGroupsUpdateToken, error) {
+	// use the first group dir after the root
+	pl := util.PathList(group)
+	if len(pl) < 2 {
+		return 0, nil, errors.Errorf("cannot determine group counter name, wrong group path %q", group)
+	}
+
+	var c uint64
+	var cgt *wal.ChangeGroupsUpdateToken
+	err := s.readDB.Do(func(tx *db.Tx) error {
+		var err error
+		c, err = s.readDB.GetRunCounterLTS(tx, pl[1])
+		if err != nil {
+			return err
+		}
+		cgt, err = s.readDB.GetChangeGroupsUpdateTokensLTS(tx, []string{"counter-" + pl[1]})
+		return err
+	})
+	if err != nil {
+		return 0, nil, err
+	}
+
+	return c, cgt, nil
+}

internal/services/runservice/scheduler/common/common.go

@@ -17,7 +17,6 @@ package common
 import (
 	"fmt"
 	"path"
-	"strings"
 )
 
 type ErrNotExist struct {
@@ -43,8 +42,6 @@ var (
 
 	EtcdExecutorsDir = "executors"
 	EtcdTasksDir     = "tasks"
-
-	EtcdLastIndexKey = "lastindex"
 )
 
 func EtcdRunKey(runID string) string       { return path.Join(EtcdRunsDir, runID) }
@@ -80,37 +77,30 @@ func StorageRunConfigFile(runID string) string {
 	return path.Join(StorageRunsConfigDir, runID)
 }
 
-func StorageCounterFile(group string) string {
+func StorageRunCounterFile(group string) string {
 	return path.Join(StorageCountersDir, group)
 }
 
-type ConfigType int
+type DataType string
 
 const (
-	ConfigTypeRun ConfigType = iota + 1
+	DataTypeRun        DataType = "run"
-	ConfigTypeRunData
+	DataTypeRunData    DataType = "rundata"
-	ConfigTypeRunConfig
+	DataTypeRunConfig  DataType = "runconfig"
-	ConfigTypeCounter
+	DataTypeRunCounter DataType = "runcounter"
 )
 
-func PathToTypeID(p string) (ConfigType, string) {
+func DataToPathFunc(dataType string, id string) string {
-	var configType ConfigType
+	switch DataType(dataType) {
-	switch path.Dir(p) {
+	case DataTypeRun:
-	case StorageRunsDir:
+		return StorageRunFile(id)
-		configType = ConfigTypeRun
+	case DataTypeRunData:
-	case StorageRunsDataDir:
+		return StorageRunDataFile(id)
-		configType = ConfigTypeRunData
+	case DataTypeRunConfig:
-	case StorageRunsConfigDir:
+		return StorageRunConfigFile(id)
-		configType = ConfigTypeRunConfig
+	case DataTypeRunCounter:
+		return StorageRunCounterFile(id)
 	}
 
-	if strings.HasPrefix(p, StorageCountersDir+"/") {
+	panic(fmt.Errorf("unknown data type %q", dataType))
-		configType = ConfigTypeCounter
-	}
-
-	if configType == 0 {
-		panic(fmt.Errorf("cannot determine configtype for path: %q", p))
-	}
-
-	return configType, path.Base(p)
 }

internal/services/runservice/scheduler/readdb/create.go

@@ -34,7 +34,11 @@ var Stmts = []string{
 	// committedwalsequence stores the last committed wal sequence
 	"create table committedwalsequence_lts (seq varchar, PRIMARY KEY (seq))",
 
+	"create table changegrouprevision_lts (id varchar, revision varchar, PRIMARY KEY (id, revision))",
+
 	"create table run_lts (id varchar, grouppath varchar, phase varchar, PRIMARY KEY (id, grouppath, phase))",
 
 	"create table rundata_lts (id varchar, data bytea, PRIMARY KEY (id))",
+
+	"create table runcounter_lts (groupid varchar, counter bigint, PRIMARY KEY (groupid))",
 }

internal/services/runservice/scheduler/scheduler.go

@@ -85,12 +85,12 @@ func (s *Scheduler) advanceRunTasks(ctx context.Context, r *types.Run) error {
 	log.Debugf("run: %s", util.Dump(r))
 	rc, err := store.LTSGetRunConfig(s.wal, r.ID)
 	if err != nil {
-		return errors.Wrapf(err, "cannot get run config %q from etcd", r.ID)
+		return errors.Wrapf(err, "cannot get run config %q", r.ID)
 	}
 	log.Debugf("rc: %s", util.Dump(rc))
 	rd, err := store.LTSGetRunData(s.wal, r.ID)
 	if err != nil {
-		return errors.Wrapf(err, "cannot get run data %q from etcd", r.ID)
+		return errors.Wrapf(err, "cannot get run data %q", r.ID)
 	}
 	log.Debugf("rd: %s", util.Dump(rd))
 
@@ -1077,25 +1077,9 @@ func (s *Scheduler) runLTSArchiver(ctx context.Context, r *types.Run) error {
 		return err
 	}
 
-	resp, err := s.e.Get(ctx, common.EtcdLastIndexKey, 0)
+	actions := append([]*wal.Action{ra})
-	// if lastIndexKey doesn't exist return an error
-	if err != nil {
-		return err
-	}
-	lastIndexRevision := resp.Kvs[0].ModRevision
-	lastIndexDir := string(resp.Kvs[0].Value)
 
-	indexActions, err := s.additionalActions(lastIndexDir, ra)
+	if _, err = s.wal.WriteWal(ctx, actions, nil); err != nil {
-	if err != nil {
-		return err
-	}
-
-	actions := append([]*wal.Action{ra}, indexActions...)
-
-	cmp := []etcdclientv3.Cmp{etcdclientv3.Compare(etcdclientv3.ModRevision(common.EtcdLastIndexKey), "=", lastIndexRevision)}
-	then := []etcdclientv3.Op{etcdclientv3.OpPut(common.EtcdLastIndexKey, lastIndexDir)}
-
-	if _, err = s.wal.WriteWalAdditionalOps(ctx, actions, nil, cmp, then); err != nil {
 		return err
 	}
 
@@ -1107,53 +1091,6 @@ func (s *Scheduler) runLTSArchiver(ctx context.Context, r *types.Run) error {
 	return nil
 }
 
-func (s *Scheduler) additionalActions(indexDir string, action *wal.Action) ([]*wal.Action, error) {
-	type indexData struct {
-		ID    string
-		Group string
-		Phase types.RunPhase
-	}
-
-	configType, _ := common.PathToTypeID(action.Path)
-
-	var actionType wal.ActionType
-
-	switch action.ActionType {
-	case wal.ActionTypePut:
-		actionType = wal.ActionTypePut
-	case wal.ActionTypeDelete:
-		actionType = wal.ActionTypeDelete
-	}
-
-	switch configType {
-	case common.ConfigTypeRun:
-		var run *types.Run
-		if err := json.Unmarshal(action.Data, &run); err != nil {
-			return nil, errors.Wrap(err, "failed to unmarshal run")
-		}
-
-		data := []byte{}
-		index := path.Join(common.StorageRunsIndexesDir, indexDir, "added", run.ID)
-		id := &indexData{ID: run.ID, Group: run.Group, Phase: run.Phase}
-		idj, err := json.Marshal(id)
-		if err != nil {
-			return nil, err
-		}
-		data = append(data, idj...)
-
-		actions := []*wal.Action{
-			&wal.Action{
-				ActionType: actionType,
-				Path:       index,
-				Data:       data,
-			},
-		}
-		return actions, nil
-	}
-
-	return []*wal.Action{}, nil
-}
-
 func (s *Scheduler) dumpLTSLoop(ctx context.Context) {
 	for {
 		log.Debugf("lts dump loop")
@@ -1174,37 +1111,50 @@ func (s *Scheduler) dumpLTSLoop(ctx context.Context) {
 }
 
 func (s *Scheduler) dumpLTS(ctx context.Context) error {
+	type indexHeader struct {
+		LastWalSequence string
+	}
 	type indexData struct {
+		DataType string
+		Data     interface{}
+	}
+
+	type indexDataRun struct {
 		ID    string
 		Group string
 		Phase types.RunPhase
 	}
-
+	type indexDataRunCounter struct {
-	resp, err := s.e.Get(ctx, common.EtcdLastIndexKey, 0)
+		Group   string
-	// if lastIndexKey doesn't exist return an error
+		Counter uint64
-	if err != nil {
-		return err
 	}
-	lastIndexRevision := resp.Kvs[0].ModRevision
-	revision := resp.Header.Revision
 
 	indexDir := strconv.FormatInt(time.Now().UnixNano(), 10)
 
-	readdbRevision, err := s.readDB.GetRevision()
+	var lastWalSequence string
+	err := s.readDB.Do(func(tx *db.Tx) error {
+		var err error
+		lastWalSequence, err = s.readDB.GetCommittedWalSequenceLTS(tx)
+		return err
+	})
 	if err != nil {
 		return err
 	}
-	if readdbRevision < revision {
-		return errors.Errorf("readdb revision %d is lower than index revision %d", readdbRevision, revision)
-	}
 
-	runs := []*readdb.RunData{}
+	data := []byte{}
+	iheader := &indexHeader{LastWalSequence: lastWalSequence}
+	ihj, err := json.Marshal(iheader)
+	if err != nil {
+		return err
+	}
+	data = append(data, ihj...)
+
 	var lastRunID string
 	stop := false
 	for {
 		err := s.readDB.Do(func(tx *db.Tx) error {
 			var err error
-			lruns, err := s.readDB.GetRunsFilteredLTS(tx, nil, false, nil, lastRunID, 10000, types.SortOrderDesc)
+			lruns, err := s.readDB.GetRunsFilteredLTS(tx, nil, false, nil, lastRunID, 1000, types.SortOrderDesc)
 			if err != nil {
 				return err
 			}
@@ -1213,7 +1163,14 @@ func (s *Scheduler) dumpLTS(ctx context.Context) error {
 			} else {
 				lastRunID = lruns[len(lruns)-1].ID
 			}
-			runs = append(runs, lruns...)
+			for _, run := range lruns {
+				id := &indexData{DataType: string(common.DataTypeRun), Data: indexDataRun{ID: run.ID, Group: run.GroupPath, Phase: types.RunPhase(run.Phase)}}
+				idj, err := json.Marshal(id)
+				if err != nil {
+					return err
+				}
+				data = append(data, idj...)
+			}
 			return nil
 		})
 		if err != nil {
@@ -1224,30 +1181,41 @@ func (s *Scheduler) dumpLTS(ctx context.Context) error {
 		}
 	}
 
-	data := []byte{}
+	var lastGroup string
-	for _, run := range runs {
+	stop = false
-		id := &indexData{ID: run.ID, Group: run.GroupPath, Phase: types.RunPhase(run.Phase)}
+	for {
+		err := s.readDB.Do(func(tx *db.Tx) error {
+			var err error
+			counters, err := s.readDB.GetRunCountersLTS(tx, lastGroup, 1000)
+			if err != nil {
+				return err
+			}
+			if len(counters) == 0 {
+				stop = true
+			} else {
+				lastGroup = counters[len(counters)-1].Group
+			}
+			for _, counter := range counters {
+				id := &indexData{DataType: string(common.DataTypeRunCounter), Data: indexDataRunCounter{Group: counter.Group, Counter: counter.Counter}}
 				idj, err := json.Marshal(id)
 				if err != nil {
 					return err
 				}
 				data = append(data, idj...)
 			}
+			return nil
+		})
+		if err != nil {
+			return err
+		}
+		if stop {
+			break
+		}
+	}
 
 	index := path.Join(common.StorageRunsIndexesDir, indexDir, "all")
 
-	cmp := []etcdclientv3.Cmp{etcdclientv3.Compare(etcdclientv3.ModRevision(common.EtcdLastIndexKey), "=", lastIndexRevision)}
+	if err = s.lts.WriteObject(index, bytes.NewReader(data)); err != nil {
-	then := []etcdclientv3.Op{etcdclientv3.OpPut(common.EtcdLastIndexKey, indexDir)}
-
-	actions := []*wal.Action{
-		&wal.Action{
-			ActionType: wal.ActionTypePut,
-			Path:       index,
-			Data:       data,
-		},
-	}
-
-	if _, err = s.wal.WriteWalAdditionalOps(ctx, actions, nil, cmp, then); err != nil {
 		return err
 	}
 
@@ -1279,18 +1247,12 @@ func (s *Scheduler) dumpLTSCleaner(ctx context.Context) error {
 		Phase types.RunPhase
 	}
 
-	resp, err := s.e.Get(ctx, common.EtcdLastIndexKey, 0)
+	// collect all old indexes
-	// if lastIndexKey doesn't exist return an error
-	if err != nil {
-		return err
-	}
-	lastIndexDir := string(resp.Kvs[0].Value)
-
-	// collect all object that don't pertain to the lastIndexDir
 	objects := []string{}
 	doneCh := make(chan struct{})
 	defer close(doneCh)
-	for object := range s.wal.List(common.StorageRunsIndexesDir+"/", "", true, doneCh) {
+	var indexPath string
+	for object := range s.lts.List(common.StorageRunsIndexesDir+"/", "", true, doneCh) {
 		if object.Err != nil {
 			return object.Err
 		}
@@ -1299,22 +1261,20 @@ func (s *Scheduler) dumpLTSCleaner(ctx context.Context) error {
 		if len(h) < 2 {
 			return errors.Errorf("wrong index dir path %q", object.Path)
 		}
-		indexDir := h[1]
+		curIndexPath := object.Path
-		if indexDir != lastIndexDir {
+		if curIndexPath > indexPath {
-			objects = append(objects, object.Path)
+			if indexPath != "" {
+				objects = append(objects, indexPath)
+			}
+			indexPath = curIndexPath
+		} else {
+			objects = append(objects, curIndexPath)
 		}
 	}
 
-	actions := make([]*wal.Action, len(objects))
+	for _, object := range objects {
-	for i, object := range objects {
+		if err := s.lts.DeleteObject(object); err != nil {
-		actions[i] = &wal.Action{
+			log.Errorf("object: %s, err: %v", object, err)
-			ActionType: wal.ActionTypeDelete,
-			Path:       object,
-		}
-	}
-
-	if len(actions) > 0 {
-		if _, err = s.wal.WriteWal(ctx, actions, nil); err != nil {
 			return err
 		}
 	}
@@ -1354,6 +1314,7 @@ func NewScheduler(ctx context.Context, c *config.RunServiceScheduler) (*Schedule
 	walConf := &wal.WalManagerConfig{
 		E:              e,
 		Lts:            lts,
+		DataToPathFunc: common.DataToPathFunc,
 	}
 	wal, err := wal.NewWalManager(ctx, logger, walConf)
 	if err != nil {
@@ -1361,13 +1322,13 @@ func NewScheduler(ctx context.Context, c *config.RunServiceScheduler) (*Schedule
 	}
 	s.wal = wal
 
-	readDB, err := readdb.NewReadDB(ctx, logger, filepath.Join(c.DataDir, "readdb"), e, wal)
+	readDB, err := readdb.NewReadDB(ctx, logger, filepath.Join(c.DataDir, "readdb"), e, lts, wal)
 	if err != nil {
 		return nil, err
 	}
 	s.readDB = readDB
 
-	ch := command.NewCommandHandler(logger, e, lts, wal)
+	ch := command.NewCommandHandler(logger, e, readDB, lts, wal)
 	s.ch = ch
 
 	return s, nil
@@ -1385,41 +1346,6 @@ func (s *Scheduler) InitEtcd(ctx context.Context) error {
 		return etcd.FromEtcdError(err)
 	}
 
-	// Populate lastIndexDir if empty
-	doneCh := make(chan struct{})
-	defer close(doneCh)
-
-	_, err := s.e.Get(ctx, common.EtcdLastIndexKey, 0)
-	if err != nil && err != etcd.ErrKeyNotFound {
-		return err
-	}
-	// EtcdLastIndexKey already exist
-	if err == nil {
-		return nil
-	}
-
-	var indexDir string
-	// take the last (greater) indexdir
-	for object := range s.wal.List(common.StorageRunsIndexesDir+"/", "", true, doneCh) {
-		if object.Err != nil {
-			return object.Err
-		}
-
-		h := util.PathList(object.Path)
-		if len(h) < 2 {
-			return errors.Errorf("wrong index dir path %q", object.Path)
-		}
-		indexDir = h[1]
-	}
-
-	// if an indexDir doesn't exist in lts then initialize
-	if indexDir == "" {
-		indexDir = strconv.FormatInt(time.Now().UnixNano(), 10)
-		if _, err := s.e.AtomicPut(ctx, common.EtcdLastIndexKey, []byte(indexDir), 0, nil); err != nil {
-			return err
-		}
-	}
-
 	return nil
 }
 

internal/services/runservice/scheduler/store/store.go

@@ -88,32 +88,11 @@ func LTSRunCounterPaths(group, runID string, sortOrder types.SortOrder) []string
 	paths := []string{}
 	subGroups := LTSSubGroups(group)
 	for _, subGroup := range subGroups {
-		paths = append(paths, common.StorageCounterFile(subGroup))
+		paths = append(paths, common.StorageRunCounterFile(subGroup))
 	}
 	return paths
 }
 
-func LTSGetRunCounter(wal *wal.WalManager, group string) (uint64, *wal.ChangeGroupsUpdateToken, error) {
-	// use the first group dir after the root
-	pl := util.PathList(group)
-	if len(pl) < 2 {
-		return 0, nil, errors.Errorf("cannot determine group counter name, wrong group path %q", group)
-	}
-	runCounterPath := common.StorageCounterFile(pl[1])
-	rcf, cgt, err := wal.ReadObject(runCounterPath, []string{"counter-" + pl[1]})
-	if err != nil {
-		return 0, cgt, err
-	}
-	defer rcf.Close()
-	d := json.NewDecoder(rcf)
-	var c uint64
-	if err := d.Decode(&c); err != nil {
-		return 0, nil, err
-	}
-
-	return c, cgt, nil
-}
-
 func LTSUpdateRunCounterAction(ctx context.Context, c uint64, group string) (*wal.Action, error) {
 	// use the first group dir after the root
 	pl := util.PathList(group)
@@ -128,7 +107,8 @@ func LTSUpdateRunCounterAction(ctx context.Context, c uint64, group string) (*wa
 
 	action := &wal.Action{
 		ActionType: wal.ActionTypePut,
-		Path:       common.StorageCounterFile(pl[1]),
+		DataType:   string(common.DataTypeRunCounter),
+		ID:         pl[1],
 		Data:       cj,
 	}
 
@@ -175,7 +155,8 @@ func LTSSaveRunConfigAction(rc *types.RunConfig) (*wal.Action, error) {
 
 	action := &wal.Action{
 		ActionType: wal.ActionTypePut,
-		Path:       common.StorageRunConfigFile(rc.ID),
+		DataType:   string(common.DataTypeRunConfig),
+		ID:         rc.ID,
 		Data:       rcj,
 	}
 
@@ -206,7 +187,8 @@ func LTSSaveRunDataAction(rd *types.RunData) (*wal.Action, error) {
 
 	action := &wal.Action{
 		ActionType: wal.ActionTypePut,
-		Path:       common.StorageRunDataFile(rd.ID),
+		DataType:   string(common.DataTypeRunData),
+		ID:         rd.ID,
 		Data:       rdj,
 	}
 
@@ -238,7 +220,8 @@ func LTSSaveRunAction(r *types.Run) (*wal.Action, error) {
 
 	action := &wal.Action{
 		ActionType: wal.ActionTypePut,
-		Path:       common.StorageRunFile(r.ID),
+		DataType:   string(common.DataTypeRun),
+		ID:         r.ID,
 		Data:       rj,
 	}
 

internal/services/runservice/types/types.go

@@ -23,12 +23,6 @@ import (
 	"github.com/sorintlab/agola/internal/util"
 )
 
-type RunBundle struct {
-	Run *Run
-	Rc  *RunConfig
-	Rd  *RunData
-}
-
 type SortOrder int
 
 const (
@@ -36,6 +30,17 @@ const (
 	SortOrderDesc
 )
 
+type RunBundle struct {
+	Run *Run
+	Rc  *RunConfig
+	Rd  *RunData
+}
+
+type RunCounter struct {
+	Group   string
+	Counter uint64
+}
+
 type RunPhase string
 
 const (

internal/wal/changes.go

@@ -180,12 +180,16 @@ func (w *WalManager) applyWalChanges(ctx context.Context, walData *WalData, revi
 }
 
 func (w *WalManager) applyWalChangesAction(ctx context.Context, action *Action, walSequence string, revision int64) {
+	dataPath := w.dataToPathFunc(action.DataType, action.ID)
+	if dataPath == "" {
+		return
+	}
 	switch action.ActionType {
 	case ActionTypePut:
-		w.changes.addPut(action.Path, walSequence, revision)
+		w.changes.addPut(dataPath, walSequence, revision)
 
 	case ActionTypeDelete:
-		w.changes.addDelete(action.Path, walSequence, revision)
+		w.changes.addDelete(dataPath, walSequence, revision)
 	}
 	if w.changes.actions[walSequence] == nil {
 		w.changes.actions[walSequence] = []*Action{}

internal/wal/wal.go

@@ -114,7 +114,8 @@ const (
 
 type Action struct {
 	ActionType ActionType
-	Path       string
+	DataType   string
+	ID         string
 	Data       []byte
 }
 
@@ -213,11 +214,14 @@ func (w *WalManager) ReadObject(p string, cgNames []string) (io.ReadCloser, *Cha
 
 	if ok {
 		for _, action := range actions {
-			if action.ActionType == ActionTypePut && action.Path == p {
+			if action.ActionType == ActionTypePut {
-				w.log.Debugf("reading file from wal: %q", action.Path)
+				dataPath := w.dataToPathFunc(action.DataType, action.ID)
+				if dataPath == p {
+					w.log.Debugf("reading file from wal: %q", dataPath)
 					return ioutil.NopCloser(bytes.NewReader(action.Data)), cgt, nil
 				}
 			}
+		}
 		return nil, nil, errors.Errorf("no file %s in wal %s", p, walseq)
 	}
 
@@ -884,7 +888,11 @@ func (w *WalManager) checkpoint(ctx context.Context) error {
 }
 
 func (w *WalManager) checkpointAction(ctx context.Context, action *Action) error {
-	path := w.toStorageDataPath(action.Path)
+	dataPath := w.dataToPathFunc(action.DataType, action.ID)
+	if dataPath == "" {
+		return nil
+	}
+	path := w.toStorageDataPath(dataPath)
 	switch action.ActionType {
 	case ActionTypePut:
 		w.log.Debugf("writing file: %q", path)
@@ -1209,18 +1217,21 @@ func (w *WalManager) InitEtcd(ctx context.Context) error {
 	return nil
 }
 
-type AdditionalActionsFunc func(action *Action) ([]*Action, error)
+type CheckpointFunc func(action *Action) error
 
-func NoOpAdditionalActionFunc(action *Action) ([]*Action, error) {
+type DataToPathFunc func(dataType string, id string) string
-	return []*Action{}, nil
+
+func NoOpDataToPath(dataType string, id string) string {
+	return ""
 }
 
 type WalManagerConfig struct {
 	BasePath        string
 	E               *etcd.Store
 	Lts             *objectstorage.ObjStorage
-	AdditionalActionsFunc AdditionalActionsFunc
 	EtcdWalsKeepNum int
+	CheckpointFunc  CheckpointFunc
+	DataToPathFunc  DataToPathFunc
 }
 
 type WalManager struct {
@@ -1230,6 +1241,8 @@ type WalManager struct {
 	lts             *objectstorage.ObjStorage
 	changes         *WalChanges
 	etcdWalsKeepNum int
+	checkpointFunc  CheckpointFunc
+	dataToPathFunc  DataToPathFunc
 }
 
 func NewWalManager(ctx context.Context, logger *zap.Logger, conf *WalManagerConfig) (*WalManager, error) {
@@ -1240,9 +1253,9 @@ func NewWalManager(ctx context.Context, logger *zap.Logger, conf *WalManagerConf
 		return nil, errors.New("etcdWalsKeepNum must be greater than 0")
 	}
 
-	additionalActionsFunc := conf.AdditionalActionsFunc
+	dataToPathFunc := conf.DataToPathFunc
-	if additionalActionsFunc == nil {
+	if dataToPathFunc == nil {
-		additionalActionsFunc = NoOpAdditionalActionFunc
+		dataToPathFunc = NoOpDataToPath
 	}
 
 	w := &WalManager{
@@ -1252,6 +1265,8 @@ func NewWalManager(ctx context.Context, logger *zap.Logger, conf *WalManagerConf
 		lts:             conf.Lts,
 		etcdWalsKeepNum: conf.EtcdWalsKeepNum,
 		changes:         NewWalChanges(),
+		checkpointFunc:  conf.CheckpointFunc,
+		dataToPathFunc:  dataToPathFunc,
 	}
 
 	// add trailing slash the basepath

internal/wal/wal_test.go

@@ -90,6 +90,8 @@ func TestEtcdReset(t *testing.T) {
 	}
 	wal, err := NewWalManager(ctx, logger, walConfig)
 	walReadyCh := make(chan struct{})
+
+	t.Logf("starting wal")
 	go wal.Run(ctx, walReadyCh)
 	<-walReadyCh
 
@@ -102,9 +104,9 @@ func TestEtcdReset(t *testing.T) {
 
 	expectedObjects := []string{}
 	for i := 0; i < 20; i++ {
-		objectPath := fmt.Sprintf("object%02d", i)
+		objectID := fmt.Sprintf("object%02d", i)
-		expectedObjects = append(expectedObjects, objectPath)
+		expectedObjects = append(expectedObjects, objectID)
-		actions[0].Path = objectPath
+		actions[0].ID = objectID
 		if _, err := wal.WriteWal(ctx, actions, nil); err != nil {
 			t.Fatalf("unexpected err: %v", err)
 		}
@@ -113,20 +115,39 @@ func TestEtcdReset(t *testing.T) {
 	// wait for wal to be committed storage
 	time.Sleep(5 * time.Second)
 
+	t.Logf("stopping wal")
+	cancel()
+
+	t.Logf("stopping etcd")
 	// Reset etcd
 	shutdownEtcd(tetcd)
 	tetcd.WaitDown(10 * time.Second)
+	t.Logf("resetting etcd")
 	os.RemoveAll(etcdDir)
+	t.Logf("starting etcd")
+	tetcd = setupEtcd(t, etcdDir)
+	defer shutdownEtcd(tetcd)
 	if err := tetcd.Start(); err != nil {
 		t.Fatalf("unexpected err: %v", err)
 	}
 	defer shutdownEtcd(tetcd)
 
-	cancel()
+	ctx, cancel = context.WithCancel(context.Background())
-	ctx = context.Background()
+	walConfig = &WalManagerConfig{
+		BasePath:        "basepath",
+		E:               tetcd.TestEtcd.Store,
+		Lts:             objectstorage.NewObjStorage(lts, "/"),
+		EtcdWalsKeepNum: 10,
+	}
+	wal, err = NewWalManager(ctx, logger, walConfig)
+	walReadyCh = make(chan struct{})
+
+	t.Logf("starting wal")
 	go wal.Run(ctx, walReadyCh)
 	<-walReadyCh
 
+	time.Sleep(5 * time.Second)
+
 	curObjects := []string{}
 	doneCh := make(chan struct{})
 	for object := range wal.List("", "", true, doneCh) {
@@ -174,7 +195,7 @@ func TestConcurrentUpdate(t *testing.T) {
 	actions := []*Action{
 		{
 			ActionType: ActionTypePut,
-			Path:       "/object01",
+			ID:         "/object01",
 			Data:       []byte("{}"),
 		},
 	}
@@ -183,6 +204,8 @@ func TestConcurrentUpdate(t *testing.T) {
 	go wal.Run(ctx, walReadyCh)
 	<-walReadyCh
 
+	time.Sleep(5 * time.Second)
+
 	cgNames := []string{"changegroup01", "changegroup02"}
 	cgt, err := wal.GetChangeGroupsUpdateToken(cgNames)
 	if err != nil {
@@ -253,7 +276,7 @@ func TestWalCleaner(t *testing.T) {
 	actions := []*Action{
 		{
 			ActionType: ActionTypePut,
-			Path:       "/object01",
+			ID:         "/object01",
 			Data:       []byte("{}"),
 		},
 	}