Illustrative Mathematics incident

Kendall Hunt instance DNS issue

Major Resolved View vendor source →

Illustrative Mathematics experienced a major incident on October 25, 2021 affecting KH instance (uptime monitoring), lasting 2h 9m. The incident has been resolved; the full update timeline is below.

Started
Oct 25, 2021, 01:11 AM UTC
Resolved
Oct 25, 2021, 03:21 AM UTC
Duration
2h 9m
Detected by Pingoru
Oct 25, 2021, 01:11 AM UTC

Affected components

KH instance (uptime monitoring)

Update timeline

  1. investigating Oct 25, 2021, 01:11 AM UTC

    There appears to be a DNS issue with https://im.kendallhunt.com/. The server is online, and users who have recently visited the site are able to access it. But, visitors who haven't been recently are unable to access the site.

  2. identified Oct 25, 2021, 01:28 AM UTC

    The DNS issue is due to a power outage at Kendall Hunt.

  3. resolved Oct 25, 2021, 03:21 AM UTC

    Power appears to be restored, and the site is back online for all users.