vtorc: Cleanup more unused code (vitessio#13354)

go/vt/external/golib/sqlutils/sqlutils.go

@@ -77,35 +77,10 @@ func (this *RowData) MarshalJSON() ([]byte, error) {
 	return json.Marshal(cells)
 }
 
-func (this *RowData) Args() []any {
-	result := make([]any, len(*this))
-	for i := range *this {
-		result[i] = (*(*this)[i].NullString())
-	}
-	return result
-}
-
-// ResultData is an ordered row set of RowData
-type ResultData []RowData
-type NamedResultData struct {
-	Columns []string
-	Data    ResultData
-}
-
-var EmptyResultData = ResultData{}
-
 func (this *RowMap) GetString(key string) string {
 	return (*this)[key].String
 }
 
-// GetStringD returns a string from the map, or a default value if the key does not exist
-func (this *RowMap) GetStringD(key string, def string) string {
-	if cell, ok := (*this)[key]; ok {
-		return cell.String
-	}
-	return def
-}
-
 func (this *RowMap) GetInt64(key string) int64 {
 	res, _ := strconv.ParseInt(this.GetString(key), 10, 64)
 	return res
@@ -130,40 +105,16 @@ func (this *RowMap) GetInt(key string) int {
 	return res
 }
 
-func (this *RowMap) GetIntD(key string, def int) int {
-	res, err := strconv.Atoi(this.GetString(key))
-	if err != nil {
-		return def
-	}
-	return res
-}
-
 func (this *RowMap) GetUint(key string) uint {
 	res, _ := strconv.ParseUint(this.GetString(key), 10, 0)
 	return uint(res)
 }
 
-func (this *RowMap) GetUintD(key string, def uint) uint {
-	res, err := strconv.ParseUint(this.GetString(key), 10, 0)
-	if err != nil {
-		return def
-	}
-	return uint(res)
-}
-
 func (this *RowMap) GetUint64(key string) uint64 {
 	res, _ := strconv.ParseUint(this.GetString(key), 10, 64)
 	return res
 }
 
-func (this *RowMap) GetUint64D(key string, def uint64) uint64 {
-	res, err := strconv.ParseUint(this.GetString(key), 10, 64)
-	if err != nil {
-		return def
-	}
-	return res
-}
-
 func (this *RowMap) GetUint32(key string) uint32 {
 	res, _ := strconv.ParseUint(this.GetString(key), 10, 32)
 	return uint32(res)
@@ -181,7 +132,7 @@ func (this *RowMap) GetTime(key string) time.Time {
 }
 
 // knownDBs is a DB cache by uri
-var knownDBs map[string]*sql.DB = make(map[string]*sql.DB)
+var knownDBs = make(map[string]*sql.DB)
 var knownDBsMutex = &sync.Mutex{}
 
 // GetGenericDB returns a DB instance based on uri.
@@ -203,12 +154,6 @@ func GetGenericDB(driverName, dataSourceName string) (*sql.DB, bool, error) {
 	return knownDBs[dataSourceName], exists, nil
 }
 
-// GetDB returns a MySQL DB instance based on uri.
-// bool result indicates whether the DB was returned from cache; err
-func GetDB(mysql_uri string) (*sql.DB, bool, error) {
-	return GetGenericDB("mysql", mysql_uri)
-}
-
 // GetSQLiteDB returns a SQLite DB instance based on DB file name.
 // bool result indicates whether the DB was returned from cache; err
 func GetSQLiteDB(dbFile string) (*sql.DB, bool, error) {

go/vt/vtorc/collection/collection.go

@@ -97,13 +97,6 @@ func init() {
 	namedCollection = make(map[string](*Collection))
 }
 
-// StopMonitoring stops monitoring all the collections
-func StopMonitoring() {
-	for _, q := range namedCollection {
-		q.StopAutoExpiration()
-	}
-}
-
 // CreateOrReturnCollection allows for creation of a new collection or
 // returning a pointer to an existing one given the name. This allows access
 // to the data structure from the api interface (http/api.go) and also when writing (inst).

go/vt/vtorc/config/config.go

@@ -36,18 +36,14 @@ var configurationLoaded = make(chan bool)
 const (
 	HealthPollSeconds                     = 1
 	ActiveNodeExpireSeconds               = 5
-	MaintenanceOwner                      = "vtorc"
 	AuditPageSize                         = 20
-	MaintenancePurgeDays                  = 7
-	MaintenanceExpireMinutes              = 10
 	DebugMetricsIntervalSeconds           = 10
 	StaleInstanceCoordinatesExpireSeconds = 60
 	DiscoveryMaxConcurrency               = 300 // Number of goroutines doing hosts discovery
 	DiscoveryQueueCapacity                = 100000
 	DiscoveryQueueMaxStatisticsSize       = 120
 	DiscoveryCollectionRetentionSeconds   = 120
 	UnseenInstanceForgetHours             = 240 // Number of hours after which an unseen instance is forgotten
-	CandidateInstanceExpireMinutes        = 60  // Minutes after which a suggestion to use an instance as a candidate replica (to be preferably promoted on primary failover) is expired.
 	FailureDetectionPeriodBlockMinutes    = 60  // The time for which an instance's failure discovery is kept "active", so as to avoid concurrent "discoveries" of the instance's failure; this preceeds any recovery process, if any.
 )
 

go/vt/vtorc/db/db.go

@@ -153,14 +153,11 @@ func execInternal(db *sql.DB, query string, args ...any) (sql.Result, error) {
 
 // ExecVTOrc will execute given query on the vtorc backend database.
 func ExecVTOrc(query string, args ...any) (sql.Result, error) {
-	var err error
-	query = translateStatement(query)
 	db, err := OpenVTOrc()
 	if err != nil {
 		return nil, err
 	}
-	res, err := sqlutils.ExecNoPrepare(db, query, args...)
-	return res, err
+	return execInternal(db, query, args...)
 }
 
 // QueryVTOrcRowsMap

go/vt/vtorc/inst/analysis.go

@@ -18,7 +18,6 @@ package inst
 
 import (
 	"encoding/json"
-	"strings"
 	"time"
 
 	topodatapb "vitess.io/vitess/go/vt/proto/topodata"
@@ -156,18 +155,6 @@ func (replicationAnalysis *ReplicationAnalysis) MarshalJSON() ([]byte, error) {
 	return json.Marshal(i)
 }
 
-// AnalysisString returns a human friendly description of all analysis issues
-func (replicationAnalysis *ReplicationAnalysis) AnalysisString() string {
-	result := []string{}
-	if replicationAnalysis.Analysis != NoProblem {
-		result = append(result, string(replicationAnalysis.Analysis))
-	}
-	for _, structureAnalysis := range replicationAnalysis.StructureAnalysis {
-		result = append(result, string(structureAnalysis))
-	}
-	return strings.Join(result, ", ")
-}
-
 // Get a string description of the analyzed instance type (primary? co-primary? intermediate-primary?)
 func (replicationAnalysis *ReplicationAnalysis) GetAnalysisInstanceType() AnalysisInstanceType {
 	if replicationAnalysis.IsCoPrimary {

go/vt/vtorc/inst/audit_dao.go

@@ -22,7 +22,6 @@ import (
 	"os"
 	"time"
 
-	"vitess.io/vitess/go/vt/external/golib/sqlutils"
 	"vitess.io/vitess/go/vt/log"
 
 	"github.com/rcrowley/go-metrics"
@@ -109,50 +108,6 @@ func AuditOperation(auditType string, tabletAlias string, message string) error
 	return nil
 }
 
-// ReadRecentAudit returns a list of audit entries order chronologically descending, using page number.
-func ReadRecentAudit(tabletAlias string, page int) ([]Audit, error) {
-	res := []Audit{}
-	args := sqlutils.Args()
-	whereCondition := ``
-	if tabletAlias != "" {
-		whereCondition = `where alias=?`
-		args = append(args, tabletAlias)
-	}
-	query := fmt.Sprintf(`
-		select
-			audit_id,
-			audit_timestamp,
-			audit_type,
-			alias,
-			message
-		from
-			audit
-		%s
-		order by
-			audit_timestamp desc
-		limit ?
-		offset ?
-		`, whereCondition)
-	args = append(args, config.AuditPageSize, page*config.AuditPageSize)
-	err := db.QueryVTOrc(query, args, func(m sqlutils.RowMap) error {
-		audit := Audit{}
-		audit.AuditID = m.GetInt64("audit_id")
-		audit.AuditTimestamp = m.GetString("audit_timestamp")
-		audit.AuditType = m.GetString("audit_type")
-		audit.AuditTabletAlias = m.GetString("alias")
-		audit.Message = m.GetString("message")
-
-		res = append(res, audit)
-		return nil
-	})
-
-	if err != nil {
-		log.Error(err)
-	}
-	return res, err
-
-}
-
 // ExpireAudit removes old rows from the audit table
 func ExpireAudit() error {
 	return ExpireTableData("audit", "audit_timestamp")

go/vt/vtorc/inst/audit_dao_test.go

@@ -17,12 +17,14 @@ limitations under the License.
 package inst
 
 import (
+	"fmt"
 	"os"
 	"testing"
 	"time"
 
 	"github.com/stretchr/testify/require"
 
+	"vitess.io/vitess/go/vt/external/golib/sqlutils"
 	topodatapb "vitess.io/vitess/go/vt/proto/topodata"
 	"vitess.io/vitess/go/vt/topo/topoproto"
 	"vitess.io/vitess/go/vt/vtorc/config"
@@ -75,7 +77,7 @@ func TestAuditOperation(t *testing.T) {
 	auditType := "test-audit-operation"
 	message := "test-message"
 
-	t.Run("Audit to backend", func(t *testing.T) {
+	t.Run("audit to backend", func(t *testing.T) {
 		config.Config.AuditLogFile = ""
 		config.Config.AuditToSyslog = false
 		config.Config.AuditToBackendDB = true
@@ -85,7 +87,7 @@ func TestAuditOperation(t *testing.T) {
 		require.NoError(t, err)
 
 		// Check that we can read the recent audits
-		audits, err := ReadRecentAudit(tab100Alias, 0)
+		audits, err := readRecentAudit(tab100Alias, 0)
 		require.NoError(t, err)
 		require.Len(t, audits, 1)
 		require.EqualValues(t, 1, audits[0].AuditID)
@@ -94,7 +96,7 @@ func TestAuditOperation(t *testing.T) {
 		require.EqualValues(t, tab100Alias, audits[0].AuditTabletAlias)
 
 		// Check the same for no-filtering
-		audits, err = ReadRecentAudit("", 0)
+		audits, err = readRecentAudit("", 0)
 		require.NoError(t, err)
 		require.Len(t, audits, 1)
 		require.EqualValues(t, 1, audits[0].AuditID)
@@ -103,7 +105,7 @@ func TestAuditOperation(t *testing.T) {
 		require.EqualValues(t, tab100Alias, audits[0].AuditTabletAlias)
 	})
 
-	t.Run("Audit to File", func(t *testing.T) {
+	t.Run("audit to File", func(t *testing.T) {
 		config.Config.AuditToBackendDB = false
 		config.Config.AuditToSyslog = false
 
@@ -124,3 +126,51 @@ func TestAuditOperation(t *testing.T) {
 		require.Contains(t, string(fileContent), "\ttest-audit-operation\tzone-1-0000000100\t[ks:0]\ttest-message")
 	})
 }
+
+// audit presents a single audit entry (namely in the database)
+type audit struct {
+	AuditID          int64
+	AuditTimestamp   string
+	AuditType        string
+	AuditTabletAlias string
+	Message          string
+}
+
+// readRecentAudit returns a list of audit entries order chronologically descending, using page number.
+func readRecentAudit(tabletAlias string, page int) ([]audit, error) {
+	res := []audit{}
+	var args []any
+	whereCondition := ``
+	if tabletAlias != "" {
+		whereCondition = `where alias=?`
+		args = append(args, tabletAlias)
+	}
+	query := fmt.Sprintf(`
+		select
+			audit_id,
+			audit_timestamp,
+			audit_type,
+			alias,
+			message
+		from
+			audit
+		%s
+		order by
+			audit_timestamp desc
+		limit ?
+		offset ?
+		`, whereCondition)
+	args = append(args, config.AuditPageSize, page*config.AuditPageSize)
+	err := db.QueryVTOrc(query, args, func(m sqlutils.RowMap) error {
+		a := audit{}
+		a.AuditID = m.GetInt64("audit_id")
+		a.AuditTimestamp = m.GetString("audit_timestamp")
+		a.AuditType = m.GetString("audit_type")
+		a.AuditTabletAlias = m.GetString("alias")
+		a.Message = m.GetString("message")
+
+		res = append(res, a)
+		return nil
+	})
+	return res, err
+}