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fix: 写库重试 3→5 次、退避拉长至 1/3/7/15/30s
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sceptical-finch(riin-recent-sync 10-10 16:04)失败复盘:17track 物流回写
(宿主机本地进程,不走 advisory 锁)与 sync 写库在 panel 触发器链
(panel.orders/dims/dims_daily)上交叉持锁,冲突窗口持续约 3 分钟,
原 3 次重试(1/3/7s)全部耗尽。加深重试使其可跨过分钟级外部冲突窗口。
This commit is contained in:
yeuimu
2026-10-10 09:08:01 +00:00
parent 5eacfefb6c
commit e5175a0504
1 changed files with 3 additions and 2 deletions
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flows/shared/db.py
+3 -2
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@@ -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。 # 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 DB_WRITE_LOCK_KEY = 1768851058
LOCK_TIMEOUT = "15s" # 等锁超时 → LockNotAvailable → 交给重试兜底 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_RETRIES = 5 # 死锁/等锁超时的整事务重试次数(外部写者如 17track
WRITE_RETRY_BACKOFF = [1, 3, 7] # 重试退避(秒) # 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) WRITE_RETRYABLE_ERRORS = (pg_errors.DeadlockDetected, pg_errors.LockNotAvailable)