[R470] Query on DeliveryRetryPolicy property impact on redfish event subscription

[podurianusha06-cloud]

There are two deliveryretrypolicy property like SuspendRetries and TerminateAfterRetries in event subscriptions.

what is the impact of deliveryretrypolicy (SuspendRetries and TerminateAfterRetries ) on redfish event subscription/ event service

We are able to set the property (SuspendRetries and TerminateAfterRetries) but dont see any impact on event subscription or event service if we are able to get events forever whenever new event or alert comes

What is the exact mechanism of these properties? Will it stop displaying the test entries or deletion of subscriptions? Needed a clarification on what exactly happens when we set them.

Wait time is calculated as (DeliveryRetryIntervalSeconds * DeliveryRetryAttempts + 10s buffer)

Suspend_retries.txt
Suspend_retries_redfish_commnad.txt
terminate_retries.txt
terminate_retries_listener.txt

[texroemer]

Hi @podurianusha06-cloud

When a subscription is created, property DeliveryRetryPolicy default value will be set to SuspendRetries. Now once the DeliveryRetryAttempts count has been hit (default value for this property under EventService is set to 3) for continuous failed attempts to access the destination, the subscription Status / State should change from Enabled to Disabled.

Example:

[root@localhost ~]#  curl -k -X GET 'https://192.168.0.120/redfish/v1/EventService/Subscriptions/17?$select=Status' -u 'root:calvin' -H 'Content-Type: application/json' | jq
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100   283  100   283    0     0    839      0 --:--:-- --:--:-- --:--:--   837
{
  "@odata.id": "/redfish/v1/EventService/Subscriptions/17",
  "@odata.type": "#EventDestination.v1_15_1.EventDestination",
  "@odata.etag": "W/\"gen-4\"",
  "Status": {
    "Health": "OK",
    "HealthRollup": "OK",
    "State": "Disabled"
  },
  "@odata.context": "/redfish/v1/$metadata#EventDestination.EventDestination"
}

Can you confirm after continuous failed attempts you see the subscription State change to Disabled? Also you should see events in the LC logs for these failed attempts to the destination.

Example:

2026-04-14 10:59:01 LC083 The Redfish Event service cannot deliver notifications to https://192.168.0.130 because of network communication issues.

With active subscription and you change property DeliveryRetryPolicy value to TerminateAfterRetries, once the subscription detects continuous failed attempts to the destination, the subscription will get auto deleted. If you run GET on URI "/redfish/v1/EventService/Subscriptions/", it should return resource not found message,

Thanks
Tex