Before the users

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Difficulty 3 of 5

Shoppers in two regions reach the store through DNS, 600 requests/s. At 0:50 the app servers in one eu zone fail, but the eu balancer still looks healthy. Find the outage within 60 s and keep availability above 90 percent. Probe runs cost 0.02 USD per 1,000.

Play level

RegionZoneRegionHTTP/2HTTP/2HTTP/2Users600 req/sDNS1 vCPU · 1 GBLoad balanc…1 vCPU · 1 GBAPI server4 vCPU · 4 GBLoad balanc…1 vCPU · 1 GBAPI server4 vCPU · 4 GB
RegionZoneRegionDNSHTTP/2HTTP/2HTTP/2Users600 req/sDNSLoad bala…API serverLoad bala…API server
The board at the start of the level
A graph for each resourceTap to add or remove the probes

One CPU graph · CPU 40% · disk no graph · the fault is hidden

Goals and limits

Detection time
under 60 s
Availability
at least 90%
Monthly cost
under 100 USD/mo
Parts you can add
Synthetic checks
Part limit
10
Traffic
600 req/s

Concepts

How players did

Player results load from the server.

All levels