Incident Date: August 27, 2020
Incident Number: PR-1273
On August 27, 2020, at 2:34 PM ET, the Tucows Hosted Email platform experienced service interruptions impacting IMAP, POP and Webmail in cluster B.
The engineering team identified the issue with an unknown bug on a stable kernel version causing file system lockups.
At 3:56 PM ET, The Engineering team successfully restored the services by manually failing-over and upgrading the impacted device's file system.
At 5:36 PM ET, A second service interruption was observed and lasted for 12 minutes due to the same kernel systems bug.
On August 28, 2020 at 1:00 AM ET, Tucows performed emergency maintenance in order to further stabilize the email systems in cluster B.
Tucows is in contact with external vendors to investigate the cause and develop a plan to roll out a permanent solution to address the identified systems bug.
Tucows Engineering Team