Maintenance Windows for Sauce Labs
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Dates:
Thursday, June 3 2021, 08:52 - 21:40 UTC
What happened:
Mac browser and iOS Simulator testing was unavailable in our EU-Central-1 data center.
Why it happened:
Two independent events on a provider's fiber network took down two redundant network backhauls that provide connectivity between our Mac infrastructure and the rest of the Sauce Labs EU network. The first event was a planned fiber maintenance. The second event was a fiber outage. While both backhaul circuits are on separate physical paths, these events occurred simultaneously and both circuits were down at the same time.
How we fixed it:
The incident was resolved when one of the circuits was restored. The second circuit was subsequently restored.
What we are doing to prevent it from happening again:
Sauce Labs is actively investigating additional carrier redundancy options at this location to reduce the likelihood of this rare event occurring again.