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Can multiple runbooks run simultaneously in an azure automation account?

Can multiple runbooks run simultaneously in an azure automation account? If yes, how many?

I have checked the microsoft documentation but I couldn't find anything relevant. From my experience, i have seen a runbook can be completed while another is in running status. enter image description here

But I see that the runbooks are queued. Is there a limit for simultaneous runs? If yes, can it be increased?

Solution

  • Can multiple runbooks run simultaneously in an azure automation account? If yes, how many?

    Yes, more specifically, it should be runbook jobs instead of runbooks, starting a runbook in Azure Automation creates a job, which is a single execution instance of the runbook.

    And runbooks in Azure Automation can run on either an Azure sandbox or a Hybrid Runbook Worker, they have different limits, if you start your runbook in the portal, it uses Azure sandbox.

    For Azure sandbox:

    enter image description here

    For Hybrid Runbook Worker:

    enter image description here

    Reference - https://learn.microsoft.com/en-us/azure/azure-resource-manager/management/azure-subscription-service-limits#automation-limits

    But I see that the runbooks are queued.

    The status Queued does not mean the runbooks are waiting for the running jobs to complete, Azure Automation assigns a worker to run each job during runbook execution, they are just waiting for the worker.

    Reference - https://learn.microsoft.com/en-us/azure/automation/automation-runbook-execution#job-statuses

    enter image description here

    Is there a limit for simultaneous runs?

    Yes, as mentioned above, there is a limit 200 for simultaneous runs per automation account for Azure sandbox.

    If yes, can it be increased?

    No, it cannot be increased.