Thought Industries incident

Elevated load times

Resolved after 1 hour 40 minutes, affecting US - Academy Platform and EU - Academy Platform, on October 24, 2024.

postmortem Oct 24, 2024, 03:56 PM UTC

Between 8:15 AM EDT and 11:00 AM EDT the platform experienced significantly elevated response time in both the EU and US. The root cause of this outage was determined to be a routine security upgrade of an external dependency, leading to high CPU on our application servers. Despite auto-scaling due to increased load, we did not see a satisfactory reduction in response time as expected. Reverting the dependency upgrade led to an immediate return to expected response times.

Started
Oct 24, 2024, 01:16 PM UTC
Resolved
Oct 24, 2024, 02:56 PM UTC
Duration
1h 40m
Detected by Pingoru
Oct 24, 2024, 01:16 PM UTC

Affected components

US - Academy PlatformEU - Academy Platform

Update timeline

  1. investigating Oct 24, 2024, 01:16 PM UTC

    We are investigating elevated load times in the US.

  2. identified Oct 24, 2024, 01:27 PM UTC

    The issue has been identified and a fix is being implemented.

  3. identified Oct 24, 2024, 01:50 PM UTC

    We are continuing to work on a fix for this issue.

  4. identified Oct 24, 2024, 02:29 PM UTC

    We are continuing to work on a fix for this issue.

  5. identified Oct 24, 2024, 02:44 PM UTC

    We are continuing to work on a fix for this issue.

  6. monitoring Oct 24, 2024, 02:54 PM UTC

    A fix has been implemented and we are monitoring the results.

  7. resolved Oct 24, 2024, 02:56 PM UTC

    This incident has been resolved.

  8. postmortem Oct 24, 2024, 03:56 PM UTC

    Between 8:15 AM EDT and 11:00 AM EDT the platform experienced significantly elevated response time in both the EU and US. The root cause of this outage was determined to be a routine security upgrade of an external dependency, leading to high CPU on our application servers. Despite auto-scaling due to increased load, we did not see a satisfactory reduction in response time as expected. Reverting the dependency upgrade led to an immediate return to expected response times.

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