Outage in Heroku

Customers are seeing elevated H20s "App Boot Timeout" on the Common Runtime, EU region.

Resolved Minor
August 18, 2023 - Started almost 2 years ago - Lasted about 4 hours
Official incident page

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Outage Details

We are still actively investigating this issue and will post more updates soon.
Components affected
Heroku Apps
Latest Updates ( sorted recent to last )
UPDATE almost 2 years ago - at 08/18/2023 11:28PM

We are still actively investigating this issue and will post more updates soon.

UPDATE almost 2 years ago - at 08/18/2023 09:38PM

Our engineers have identified the issue and are working to restore the dyno boot process in the EU region.

ISSUE almost 2 years ago - at 08/18/2023 08:40PM

Some Common Runtime customers with apps in the EU region may experience “H20 - App Boot Timeout” errors when using basic dynos, preventing new dynos from starting. They may also see an error message "One or more of these arguments were missing: uid, gid, gateway, somaxconn, event_fd, out_fd". Our engineers are investigating the issue and we will continue to post updates.

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