WSW region hypervisors unexpected reboot

At 2024-07-12 23:35 UTC, we received an alert about WSW hosts not responding. We checked and coud not ping any of our servers.

At 23:43 We pinged again. A ssh connection to the hypervisors allowed us to see the servers had an uptime of 1 minute. We checked that all services running on the servers restarted correctly and fixed those that were not correctly running. Applications have been redeployed by the monitoring. At 23:55 everything seemed to be back to normal.

We don’t know yet why the servers were rebooted.