Merge pull request 'fix: 写库重试 3→5 次、退避拉长至 1/3/7/15/30s' (#9) from inkreach/harden-db-write-retry into main

Reviewed-on: #9
2026-10-15 07:00:22 +00:00
parent 489dacca49 e5175a0504
commit e4885803df
1 changed files with 3 additions and 2 deletions
@@ -25,8 +25,9 @@ LOOKUP_BATCH = 10000
 # 单锁无环,写事务之间从结构上不可能死锁。1768851058 = "inkr" 的 ASCII 整数表示。
 DB_WRITE_LOCK_KEY = 1768851058
 LOCK_TIMEOUT = "15s"                          # 等锁超时 → LockNotAvailable → 交给重试兜底
-WRITE_RETRIES = 3                             # 死锁/等锁超时的整事务重试次数
-WRITE_RETRY_BACKOFF = [1, 3, 7]               # 重试退避(秒)
+WRITE_RETRIES = 5                             # 死锁/等锁超时的整事务重试次数(外部写者如 17track
+                                              # 物流回写不走 advisory 锁,冲突窗口可达分钟级,重试需够深)
+WRITE_RETRY_BACKOFF = [1, 3, 7, 15, 30]       # 重试退避(秒;末位预留,最后一次失败直接抛出)
 WRITE_RETRYABLE_ERRORS = (pg_errors.DeadlockDetected, pg_errors.LockNotAvailable)