Fixing clock drift

Clock drift across your hosted CircleCI installation's instances can cause a wide range of issues, from failed health checks, to failed jobs.

Typically, error messages will indicate something about certificates "not yet being valid," and jobs will display curious runtimes ("finished five minutes from now").

Here's how to re-sync clocks across your instances:

  1. SSH into the Services box
  2. Install ntp if you haven't already: sudo apt-get install ntp
  3. Restart ntp (may need to be run as root): service ntp stop; ntpdate -s time.nist.gov; service ntp start
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