Blog / tag
postmortem
1 post.
The night we sent 40,000 push notifications at 03:14
A daylight-saving transition, a cron expression in the wrong timezone, and a retry loop with no idempotency key. A postmortem.
Blog / tag
1 post.
A daylight-saving transition, a cron expression in the wrong timezone, and a retry loop with no idempotency key. A postmortem.