Help Center/ Elastic Load Balance/ FAQs/ Service Abnormality/ How Do I Check If Sticky Sessions Failed to Take Effect?
Updated on 2025-08-30 GMT+08:00
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How Do I Check If Sticky Sessions Failed to Take Effect?

  1. Check whether sticky sessions are enabled for the backend server group. If sticky sessions are enabled, go to the next step.
  2. Check the health check result of the backend server. If the health check result is Unhealthy, traffic is routed to other backend servers and sticky sessions become invalid.
  3. If you select the source IP hash algorithm, check whether the IP address of the request changes before the load balancer receives the request.
  4. If sticky sessions are enabled for an HTTP or HTTPS listener, check whether the request carries a cookie. If they are, check whether the cookie value changed (because load balancing at Layer 7 uses cookies to maintain sessions).
Parent topic: Service Abnormality