RewindexOutage eventsJul 13, 2021
AWS outage, Jul 13, 2021
5 vendors posted 5 incidents between 12:00 and 13:00 UTC, against about 1 incidents from 1 vendors in the same hours on an ordinary week. 2 vendors named AWS in 2 incidents (2 of them blamed it). Vendors reported an AWS outage; AWS’s own incident for this date is not in the archive.
Observed, not verified. A line means a vendor’s incident named another vendor, or started in the same window. It is not a proven cause.
Times are UTC; lags are from when the first vendor named AWS.
- first vendor named AWS 12:12
How it spread
Vendors that named AWS, grouped by when they posted, and vendors that blamed one of the vendors AWS took down. Solid lines: the vendor named the other. Dashed: same window, not named.
Swipe sideways to see the whole diagram.
Mermaid source
flowchart LR
root["AWS<br/>own incident not archived"]:::inferred
h1["Within an hour<br/>2 vendors, 2 blamed AWS<br/>Confluent, Render"]:::blames
root --> h1Vendors that named AWS
In their own words. “Blames” means a causal phrase sits next to the name (“due to”, “upstream provider”…).
Within an hour
2 vendors
- Major incident
+0 min
Blames AWS
ConfluentPartial outage in AWS eu-central-1 due to connectivity issues affecting one availability zone (euc1-az3)
…Partial outage in AWS eu-central-1 due to connectivity issues affecting one availability zone (euc1-az3) This incident has been resolved.…
- Incident, no impact listed
+18 min
Blames AWS
RenderSome services in the Frankfurt region are experiencing elevated 502s
…furt region are experiencing elevated 502s Some services experienced 502s due relating to AWS connectivity issues. https://status.aws.amazon.com/#EU_block…
Same window, did not name anyone
3 incidents started during the event without naming AWS or another vendor. Some are part of it, some are a normal day’s background (about 1 in these hours).
Show all 3
- +8 minMinor incident
- +9 minMinor incident
- +14 minMajor incident
Detected automatically from 5 status pages opening incidents in the peak hour (normally at most 4). Mentions are matched by name in each incident’s title and updates, then classified as cause, location or integration; quoted text is the vendor’s. Vendors that share one status page are shown once.