EdgeWorker's may fail to execute the first time they are run on an EdgeServer. This step configures an automatic retry in the event of such a failure. 
Important Note 1 - For error handling to execute, the rule must be positioned after the CrowdHandler EdgeWorker rule that you created in Step 2. You can drag the position of the rule to the bottom of the rules list from the property manager editor screen.
Important Note 2 - The described error handling is designed to continuously attempt to retry CrowdHandler edge code in the unlikely event of a failure. If instead, you would like failed requests to retry AND bypass CrowdHandler altogether, you should contact your account team or send an email to [email protected]

https://techdocs.akamai.com/edgeworkers/docs/site-failover
  1. Selezionare "Aggiungi regola".
  2. Selezionare "Modello di regola vuoto".
  3. Nome - CrowdHandler Gestore degli errori.
  4. Configurare come mostrato di seguito e salvare.

Criteri

Aggiungi comportamento - Failover del sito

5.) Continuare al passo 6 - Attivazione