Canceling a workflow

You can cancel a workflow run that is in progress. When you cancel a workflow run, GitHub cancels all jobs and steps that are a part of that workflow.

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Um diese Schritte auszuführen, ist Schreibzugriff auf das Repository erforderlich.

Canceling a workflow run

  1. Navigieren Sie auf GitHub zur Hauptseite des Repositorys.

  2. Klicke unter dem Namen deines Repositorys auf Aktionen.

    Screenshot: Registerkarten für das Repository „github/docs“. Die Registerkarte „Aktionen“ ist mit einem orangefarbenen Rahmen hervorgehoben.

  3. Klicke in der linken Seitenleiste auf den Workflow, den Du sehen willst.

    Screenshot der linken Randleiste der Registerkarte „Aktionen“. Ein Workflow, „CodeQL“, ist dunkelorange umrandet.

  4. From the list of workflow runs, click the name of the queued or in progress run that you want to cancel.

  5. In the upper-right corner of the workflow, click Cancel workflow.

    Screenshot showing the summary for a workflow that is currently running. The "Cancel workflow" button is highlighted with a dark orange outline.

Steps GitHub takes to cancel a workflow run

When canceling workflow run, you may be running other software that uses resources that are related to the workflow run. To help you free up resources related to the workflow run, it may help to understand the steps GitHub performs to cancel a workflow run.

  1. To cancel the workflow run, the server re-evaluates if conditions for all currently running jobs. If the condition evaluates to true, the job will not get canceled. For example, the condition if: always() would evaluate to true and the job continues to run. When there is no condition, that is the equivalent of the condition if: success(), which only runs if the previous step finished successfully.
  2. For jobs that need to be canceled, the server sends a cancellation message to all the runner machines with jobs that need to be canceled.
  3. For jobs that continue to run, the server re-evaluates if conditions for the unfinished steps. If the condition evaluates to true, the step continues to run. You can use the cancelled expression to apply a status check of cancelled(). For more information see Auswerten von Ausdrücken in Workflows und Aktionen.
  4. For steps that need to be canceled, the runner machine sends SIGINT/Ctrl-C to the step's entry process (node for javascript action, docker for container action, and bash/cmd/pwd when using run in a step). If the process doesn't exit within 7500 ms, the runner will send SIGTERM/Ctrl-Break to the process, then wait for 2500 ms for the process to exit. If the process is still running, the runner kills the process tree.
  5. After the 5 minutes cancellation timeout period, the server will force terminate all jobs and steps that don't finish running or fail to complete the cancellation process.