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https://github.com/christianselig/apollo-backend
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another experiment for scheduling
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parent
9b5829f549
commit
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1 changed files with 58 additions and 1 deletions
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@ -95,7 +95,7 @@ func SchedulerCmd(ctx context.Context) *cobra.Command {
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go func() {
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for {
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enqueueAccounts(ctx, logger, statsd, db, redis, luaSha, notifQueue)
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time.Sleep(100 * time.Millisecond)
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time.Sleep(5 * time.Second)
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}
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}()
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//_, _ = s.Every(100).Milliseconds().SingletonMode().Do(func() { enqueueAccounts(ctx, logger, statsd, db, redis, luaSha, notifQueue) })
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@ -394,6 +394,63 @@ func enqueueStuckAccounts(ctx context.Context, logger *zap.Logger, statsd *stats
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}
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func enqueueAccounts(ctx context.Context, logger *zap.Logger, statsd *statsd.Client, pool *pgxpool.Pool, redisConn *redis.Client, luaSha string, queue rmq.Queue) {
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ids := []int64{}
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now := time.Now()
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rows, err := pool.Query(ctx, "SELECT id FROM accounts")
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if err != nil {
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logger.Error("failed to fetch accounts", zap.Error(err))
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return
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}
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defer rows.Close()
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var id int64
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for i := 0; rows.Next(); i++ {
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_ = rows.Scan(&id)
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ids = append(ids, id)
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}
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logger.Debug("enqueueing account batch", zap.Int("count", len(ids)), zap.Time("start", now))
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// Split ids in batches
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enqueued := 0
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skipped := 0
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for i := 0; i < len(ids); i += batchSize {
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j := i + batchSize
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if j > len(ids) {
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j = len(ids)
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}
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batch := Int64Slice(ids[i:j])
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logger.Debug("enqueueing batch", zap.Int("len", len(batch)))
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res, err := redisConn.EvalSha(ctx, luaSha, []string{"locks:accounts"}, batch).Result()
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if err != nil {
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logger.Error("failed to check for locked accounts", zap.Error(err))
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}
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vals := res.([]interface{})
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skipped += len(batch) - len(vals)
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enqueued += len(vals)
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if len(vals) == 0 {
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continue
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}
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batchIds := make([]string, len(vals))
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for k, v := range vals {
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batchIds[k] = strconv.FormatInt(v.(int64), 10)
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}
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if err = queue.Publish(batchIds...); err != nil {
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logger.Error("failed to enqueue account batch", zap.Error(err))
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}
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}
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logger.Debug("done enqueueing account batch", zap.Int("count", enqueued), zap.Int("skipped", skipped), zap.Time("start", now))
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}
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func enqueueAccounts2(ctx context.Context, logger *zap.Logger, statsd *statsd.Client, pool *pgxpool.Pool, redisConn *redis.Client, luaSha string, queue rmq.Queue) {
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now := time.Now()
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next := now.Add(domain.NotificationCheckInterval)
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