Worker Process ‘UiPath Orchestrator’ Requested A Recycle Because The Worker Process Reached End Of Its Allowed Processing Time Limit

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How to fix error "Worker process ‘UiPath Orchestrator’ requested a recycle because the worker process reached the end of its allowed processing time limit" ?

Note: IIS d​​efault value of recycling application pools is 1740 minutes or 29 hrs.

To Disable Automatic Recycling:

  • On Orchestrator Server machine---IIS-->Application pools--->UiPath Orchestrator-->Recycling(Under Edit Application Pool)


Root Cause: This is occurring due to the Recycle schedule on the AppPool user. This can either be disabled or scheduled at a time when no Robots are running.

Why is Recycling required ?

29 hrs or 1740 minutes is the default value set by IIS for application pools. Refer Recycling Settings For An Application Pool .

Recycling means that the worker process that handles requests for that application pool is terminated and a new one is started. This is generally done to avoid unstable states that can lead to application crashes, hangs, or memory leaks

Resolution:

Sometimes, Recycling can interfere with Robots running the Jobs. To avoid this,

  • Choose a time that works best. Select a specific time when no jobs are run by the Robots.