Default PHP Version

Incident Report for Pantheon Operations

Postmortem

On 11 August, 2020 at around 6am PDT an issue is observed on ~1% sites having default PHP version of 5.3 and that neither had pantheon.yaml file nor upstream.pantheon.yaml file. The issue was caused due to a new change which surfaced an underlying bug in specific sites causing them to default to PHP 7.2 instead of PHP 5.3.

The change was reverted at around 8am PDT and by 2am PDT on 12 August, 2020 all affected sites were fixed.

We will be fixing the bug and taking measures to ensure this does not happen again.

Posted Aug 24, 2020 - 16:33 PDT

Resolved

This incident has been resolved.

Posted Aug 11, 2020 - 14:02 PDT

Update

We are continuing to monitor the implemented fix. No new cases have been reported since the last update.

Posted Aug 11, 2020 - 13:25 PDT

Update

We are continuing to monitor the implemented fix. No new cases have been reported since the last update.

Posted Aug 11, 2020 - 12:19 PDT

Update

We are continuing to monitor this issue. No new cases have been reported since the last update.

Posted Aug 11, 2020 - 11:21 PDT

Update

We are continuing to monitor this issue. No new cases have been reported since the last update.

Posted Aug 11, 2020 - 10:20 PDT

Update

We are continuing to monitor for any further issues.

Posted Aug 11, 2020 - 09:08 PDT

Monitoring

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

Posted Aug 11, 2020 - 08:36 PDT

Identified

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

Posted Aug 11, 2020 - 08:22 PDT

Update

We are continuing to investigate this issue.

Posted Aug 11, 2020 - 08:13 PDT

Investigating

We are currently investigating an issue affecting sites previously running PHP 5.x without a pantheon.yml file. These have defaulted to PHP 7.2 and we are working to correct this. As a workaround, add a pantheon.yml file as described in our docs here: https://pantheon.io/docs/php-versions#configure-php-version

Posted Aug 11, 2020 - 07:39 PDT

This incident affected: Customer Sites.