There was a partial outage on push function in us-1 region.
When: 01:32 ~ 01:41, Feb 02, 2021 UTC (17:32 ~ 17:41, Feb 01, 2021 PST)
Impact: Customers in us-1 may have experienced push failures during that time.
Possible cause: While we were doing maintenance on our resources, we found an issue during the deployment at 01:32, 02-02-2021 UTC. Then we immediately reverted the change and the system backed to normal at 01:41, 02-02-2021 UTC.
Next step: We are now investigating the root cause, will be able to provide more details with RCA if required.