dbWait waits for database connection to be established
(db *sql.DB)
| 50 | |
| 51 | // dbWait waits for database connection to be established |
| 52 | func dbWait(db *sql.DB) error { |
| 53 | deadline := time.Now().Add(dbTimeout) |
| 54 | var err error |
| 55 | for tries := 0; time.Now().Before(deadline); tries++ { |
| 56 | err = db.Ping() |
| 57 | if err == nil { |
| 58 | return nil |
| 59 | } |
| 60 | level.Warn(util_log.Logger).Log("msg", "db connection not established, retrying...", "err", err) |
| 61 | time.Sleep(time.Second << uint(tries)) |
| 62 | } |
| 63 | return errors.Wrapf(err, "db connection not established after %s", dbTimeout) |
| 64 | } |
| 65 | |
| 66 | // New creates a new postgres DB |
| 67 | func New(uri, migrationsDir string) (DB, error) { |