Symptoms

Received below error when trying to place an order via API or CP:

Could not invoke endpoint url 'https://order-management:8081/rest/order-management/3c0d0ab8-4466-422b-845c-2471e3af534a/orders' of application instance with UUID '15000493-c7a5-481d-94fd-f47e2a6b6e51'. RESTEASY004655: Unable to invoke request: java.net.UnknownHostException: order-management: Name or service not known: order-management: Name or service not known

Cause

order-management pod is not available or accessible from MN node.

Resolution

Please check if order-management pod is running:

[root@ooamn ~]# kubectl get pod | grep order-management
order-management-d4f44d686-mt9fr             1/1     Running   2426 (76m ago)   106d

If it is running, please make sure connection from MN node is available by testing using telnet:

[root@ooamn ~]# telnet order-management 8081
Trying 10.107.1.32...
Connected to order-management.
Escape character is '^]'.

If kubectl command produce output that is similar as below snippet, it means that your kubernetes cluster is not reachable. Please check and rectifty any issue with kubernetes cluster networking:

[root@ooamn ~]# kubectl get pod
Unable to connect to the server: dial tcp 192.168.0.1:6443: i/o timeout

If kubectl command doesn't show any output, you need to deploy order-management pod as per the official documentation here: Deploying Order Management

If you need further assistance of error that is not mentioned above, please contact Cloudblue Technical Support.