OCI OCE API returning 503 ServiceUnavailable while listing instances via SDK

[senthil262006]

Description:
We are running an OCI inventory script using the Oracle Python SDK to list all services across compartments and regions.

During execution, we consistently receive a 503 ServiceUnavailable error when calling the OCE (Oracle Content and Experience) API.

Error Details:

Service: Oracle Content and Experience Cloud
Operation: list_oce_instances
Status Code: 503
Error Code: ServiceUnavailable
Endpoint: https://cp.oce.eu-amsterdam-1.ocp.oraclecloud.com/20190912/oceInstances (also observed in me-dubai-1)

Sample Error Message:

ServiceUnavailable (503)
operation_name: list_oce_instances
message: Service Unavailable
client_version: Oracle-PythonSDK/2.154.3

Impact:

Unable to retrieve OCE resource inventory
Script execution shows repeated errors across all compartments
Other OCI services are working correctly

Environment Details:

OCI Python SDK Version: 2.154.3
Authentication: Config file / API key
Regions tested:
eu-amsterdam-1
me-dubai-1
Compartments: Multiple (issue reproducible across all)

Steps to Reproduce:

Execute OCI Python SDK call:

oce_client.list_oce_instances(compartment_id)
Observe 503 ServiceUnavailable response

Expected Behavior:

API should return either:
List of OCE instances, OR
Empty response if no resources exist

Actual Behavior:

API returns 503 ServiceUnavailable consistently

Additional Notes:

Issue occurs across multiple regions and compartments
Other OCI service APIs function normally
Temporary workaround implemented by excluding OCE service from inventory script

Request:

Please confirm if there is an outage or limitation with OCE API
Verify if OCE service is enabled/accessible for this tenancy
Provide guidance or fix to retrieve OCE instances without errors

[adizohar]

OCE is deprecated, please check https://docs.oracle.com/en/cloud/paas/content-cloud/ocm-eos/index.html

[adizohar]

if you are using showoci, you can use -exclude OCE, but if you developed your own script, please remove the API to OCE

[senthil262006]

The issue was resolved after adding the below condition at the beginning of the __load_paas_oce function to skip OCE processing when excluded:
def __load_paas_oce(self, oce_client, compartments):

if hasattr(self.flags, "exclude") and (
    "oce_instance" in self.flags.exclude or
    "oce" in self.flags.exclude or
    self.EXCLUDE_OCE in self.flags.exclude
):
    return []

header = "OCE Native"

if not oce_client:
    return []

oces = []

for compartment in compartments:
    try:
        response = oci.pagination.list_call_get_all_results(
            oce_client.list_oce_instances,
            compartment_id=compartment.id
        )
        oces += response.data

    except Exception:
        return []

return oces

Sample output:

Native, Data and AI ...
--> OCVS Native - VMWare <-- .................................................................................................................................... (0) - 00:00:22
--> OIC Native <-- .................................................................................................................................... (2) - 00:00:21
--> OAC Native <-- .................................................................................................................................... (0) - 00:00:22
--> Visual Builder <-- .................................................................................................................................... (0) - 00:00:21
--> DevOps Project <-- .................................................................................................................................... (0) - 00:00:21
--> Open Search Cluster <-- .................................................................................................................................... (0) - 00:00:21
--> Data Catalog <-- .................................................................................................................................... (0) - 00:00:22
--> Data Flow <-- .................................................................................................................................... (0) - 00:00:25
--> Data Science <-- .................................................................................................................................... (0) - 00:00:24
--> Data Assistant <-- .................................................................................................................................... (0) - 00:00:21
--> Big Data Service <-- .................................................................................................................................... (0) - 00:00:22
--> Data Integration <-- .................................................................................................................................... (1) - 00:01:17
--> Generative AI <-- (-) - excluded
--> Generative AI Agents KBs <-- (-) - excluded
--> Generative AI Agents <-- (-) - excluded
Section Elapsed Time 00:05:19

[adizohar]

You could use -exclude OCE as well.

[adizohar]

If issue resolved, please close the ticket