PDI cannot wake up. It was active last night

[EmbelleL]

I need help waking up m PDI. I used it last night but today(Nov 4) I cannot wake it up.

Is there something going on behind the scenes today (Nov 4, 2026) preventing some PDIs from becoming active? It's been offline all day.

Need some assistance.

Thank you.

[Tarun Rekandar]

Hi @EmbelleL,
From an infrastructure perspective, recurring 502 Bad Gateway and PDI Offline errors on a PDI can occur because PDIs operate in a shared and temporary environment.

ServiceNow hosts a large number of free PDIs on shared infrastructure. If another instance on the same underlying node consumes excessive resources—for example, due to a runaway script or memory-related issue—it may affect the availability of the node or container. As a result, the Application Delivery Controller (snow_adc) may temporarily lose connectivity with your instance, which can lead to a 502 Bad Gateway and PDI offline error.

Because of this, it is important not to treat a PDI as permanent infrastructure. A good development practice is to keep your application code independent of the instance by regularly pushing your scoped applications to a remote Git repository using ServiceNow Studio Source Control.

With your code safely stored in source control, you can release an unstable or unavailable PDI, provision a new instance, and retrieve your application code quickly. This approach avoids spending unnecessary time troubleshooting infrastructure issues that may be related to the temporary PDI environment.

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Regards,
Tarun