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2 hours aligns with the postmortem, 12 hours does not. The monitoring is based on a sampling of instances running in each service and region. Outages are verif
by jread 10y ago
2 hours aligns with the postmortem, 12 hours does not. The monitoring is based on a sampling of instances running in each service and region. Outages are verified from multiple network paths. While not comprehensive, over the years this has been generally accurate because most outage events have been network or power related, thus impacting most or all instances in the affected data center. There have been some isolated hardware failures, but they are rare.
- brazzledazzle 10y agoI may be mistaken, but 2 hours only aligns with their post mortem for 80% of the impacted instances. By their own account there were instances impacted until 8AM and a small number after that even. Your monitoring sounds really comprehensive. That's a very cool way to advertise the service it's built on. Do you monitor service providers for outages that reduce capacity or increase latencies but otherwise the service is "up"?