(Hopefully) remove statsQueue races
parent
22c66203a0
commit
9e9caee639
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@ -599,7 +599,7 @@ func (s *Server) handlePublishWithoutResponse(r *http.Request, v *visitor) (*mes
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}
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}
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v.IncrementMessages()
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v.IncrementMessages()
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if s.userManager != nil && v.user != nil {
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if s.userManager != nil && v.user != nil {
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s.userManager.EnqueueStats(v.user) // FIXME this makes no sense for tier-less users
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s.userManager.EnqueueStats(v.user.ID, v.Stats()) // FIXME this makes no sense for tier-less users
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}
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}
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s.mu.Lock()
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s.mu.Lock()
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s.messages++
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s.messages++
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@ -232,17 +232,20 @@ func (v *visitor) IncrementMessages() {
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v.mu.Lock()
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v.mu.Lock()
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defer v.mu.Unlock()
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defer v.mu.Unlock()
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v.messages++
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v.messages++
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if v.user != nil {
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v.user.Stats.Messages = v.messages
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}
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}
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}
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func (v *visitor) IncrementEmails() {
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func (v *visitor) IncrementEmails() {
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v.mu.Lock()
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v.mu.Lock()
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defer v.mu.Unlock()
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defer v.mu.Unlock()
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v.emails++
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v.emails++
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if v.user != nil {
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}
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v.user.Stats.Emails = v.emails
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func (v *visitor) Stats() *user.Stats {
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v.mu.Lock()
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defer v.mu.Unlock()
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return &user.Stats{
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Messages: v.messages,
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Emails: v.emails,
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}
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}
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}
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}
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@ -254,10 +257,6 @@ func (v *visitor) ResetStats() {
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if v.messagesLimiter != nil {
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if v.messagesLimiter != nil {
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v.messagesLimiter.Reset()
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v.messagesLimiter.Reset()
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}
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}
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if v.user != nil {
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v.user.Stats.Messages = 0
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v.user.Stats.Emails = 0
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}
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}
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}
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// SetUser sets the visitors user to the given value
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// SetUser sets the visitors user to the given value
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@ -293,7 +293,7 @@ const (
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type Manager struct {
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type Manager struct {
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db *sql.DB
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db *sql.DB
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defaultAccess Permission // Default permission if no ACL matches
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defaultAccess Permission // Default permission if no ACL matches
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statsQueue map[string]*User // Username -> User, for "unimportant" user updates
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statsQueue map[string]*Stats // "Queue" to asynchronously write user stats to the database (UserID -> Stats)
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mu sync.Mutex
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mu sync.Mutex
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}
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}
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@ -319,7 +319,7 @@ func newManager(filename, startupQueries string, defaultAccess Permission, stats
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manager := &Manager{
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manager := &Manager{
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db: db,
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db: db,
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defaultAccess: defaultAccess,
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defaultAccess: defaultAccess,
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statsQueue: make(map[string]*User),
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statsQueue: make(map[string]*Stats),
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}
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}
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go manager.userStatsQueueWriter(statsWriterInterval)
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go manager.userStatsQueueWriter(statsWriterInterval)
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return manager, nil
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return manager, nil
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@ -464,16 +464,16 @@ func (a *Manager) ResetStats() error {
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if _, err := a.db.Exec(updateUserStatsResetAllQuery); err != nil {
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if _, err := a.db.Exec(updateUserStatsResetAllQuery); err != nil {
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return err
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return err
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}
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}
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a.statsQueue = make(map[string]*User)
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a.statsQueue = make(map[string]*Stats)
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return nil
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return nil
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}
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}
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// EnqueueStats adds the user to a queue which writes out user stats (messages, emails, ..) in
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// EnqueueStats adds the user to a queue which writes out user stats (messages, emails, ..) in
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// batches at a regular interval
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// batches at a regular interval
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func (a *Manager) EnqueueStats(user *User) {
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func (a *Manager) EnqueueStats(userID string, stats *Stats) {
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a.mu.Lock()
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a.mu.Lock()
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defer a.mu.Unlock()
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defer a.mu.Unlock()
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a.statsQueue[user.ID] = user
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a.statsQueue[userID] = stats
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}
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}
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func (a *Manager) userStatsQueueWriter(interval time.Duration) {
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func (a *Manager) userStatsQueueWriter(interval time.Duration) {
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@ -493,7 +493,7 @@ func (a *Manager) writeUserStatsQueue() error {
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return nil
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return nil
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}
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}
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statsQueue := a.statsQueue
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statsQueue := a.statsQueue
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a.statsQueue = make(map[string]*User)
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a.statsQueue = make(map[string]*Stats)
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a.mu.Unlock()
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a.mu.Unlock()
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tx, err := a.db.Begin()
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tx, err := a.db.Begin()
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if err != nil {
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if err != nil {
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@ -501,9 +501,9 @@ func (a *Manager) writeUserStatsQueue() error {
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}
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}
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defer tx.Rollback()
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defer tx.Rollback()
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log.Debug("User Manager: Writing user stats queue for %d user(s)", len(statsQueue))
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log.Debug("User Manager: Writing user stats queue for %d user(s)", len(statsQueue))
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for userID, u := range statsQueue {
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for userID, update := range statsQueue {
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log.Trace("User Manager: Updating stats for user %s: messages=%d, emails=%d", userID, u.Stats.Messages, u.Stats.Emails)
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log.Trace("User Manager: Updating stats for user %s: messages=%d, emails=%d", userID, update.Messages, update.Emails)
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if _, err := tx.Exec(updateUserStatsQuery, u.Stats.Messages, u.Stats.Emails, userID); err != nil {
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if _, err := tx.Exec(updateUserStatsQuery, update.Messages, update.Emails, userID); err != nil {
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return err
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return err
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}
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}
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}
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}
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@ -554,10 +554,10 @@ func TestManager_EnqueueStats(t *testing.T) {
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require.Nil(t, err)
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require.Nil(t, err)
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require.Equal(t, int64(0), u.Stats.Messages)
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require.Equal(t, int64(0), u.Stats.Messages)
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require.Equal(t, int64(0), u.Stats.Emails)
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require.Equal(t, int64(0), u.Stats.Emails)
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a.EnqueueStats(u.ID, &Stats{
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u.Stats.Messages = 11
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Messages: 11,
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u.Stats.Emails = 2
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Emails: 2,
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a.EnqueueStats(u)
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})
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// Still no change, because it's queued asynchronously
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// Still no change, because it's queued asynchronously
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u, err = a.User("ben")
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u, err = a.User("ben")
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