Troubleshooting

The following guide can be used to troubleshoot problems with the Streams functionality.

Content

• Streams Notification is not received even though the object has changed
• Warning sign shown in Streams Panel
• Push Notification not working
• Notifications over proxy

Streams Notification is not received even though the object has changed

If you don't see the warning messages, and if clicking the Streams Panel icon doesn't show the new Streams Notification, then this is most probably an issue with the Subscription functionality. See here for the troubleshooting this issue.

Warning sign shown in Streams Panel

This means that the web socket connection is terminated. If it is not resolved automatically after a few minutes open the Debug Console and check the log information in the Sub Category FndWebSocketService. Here are a couple of possible error you might see.

• HTTP/1.1 404 or 503 : This means that the Streams application running on IFS Middleware Sever is not deployed properly. Login to IFS Middleware Server Admin Console and check Deployments.
• HTTP/1.1 401: This means that the Websocket authentication is failing. Check if there are adequate database sessions and processes available for authentication. There should at least be around 50-100 sessions/processes available.

If you see a different error message please contact IFS.

Push Notification not working

Sometimes the Warning sign is not shown in Streams Panel, but push notification is not working as expected. If so check if there are any messages in the Oracle Queue CLIENT_NOTIF_Q, and that it's growing.

• Check if Enqueue and Dequeue is enabled for the Queue from the Oracle Queues window in Solution Manager.
• Check the Database Alert Log in Solution Manager and check for Errors in the Server Errors category with text Client Notification Error. Contact IFS with this information.

Notifications over proxy

When exposing IEE endpoints over a proxy make sure also the /websocket endpoint is forwarded and websocket support is needs to be enabled in the proxy to upgrade a http connection to a websocket connections. This is done in different ways on different proxies, read correspoding documentation for each proxy on how to handle websocket upgrade of http connections.
See also  - How to access IFS Applications from the Internet