When using Odoo as metadata, after adding a new Edge, all edges stop displaying on the backend UI dashboard

[katsuya]

Description

Whenever a new Edge is added, the bug mentioned in the title always occurs. At this time, checking http://localhost:4200/overview shows that the getEdges API outputs the error 'Unable to find edge with id [xxx]'. However, restarting the backend resolves the issue, and all edges, including the newly added one, are displayed on the dashboard.

Here is the bug details:

• When initializing the connection with PostgreSQL, all edges are loaded into the cache.
  InitializeEdgesWorker.java#L39-L52
• The getEdges API calls the getPageDevice method:
  MetadataOdoo.java#L578
• Next, getPageDevice calls convertToEdgeMetadata for each edge:
  MetadataOdoo.java#L596-L603
• Since the newly added Edge is not in the cache, the error throw new OpenemsException("Unable to find edge with id [" + edgeId + "]") occurs.
• The cache is only updated during the initialization of the connection with PostgreSQL, so a restart is required after adding a new edge.

Screenshots

Operating System

macOS

How to reproduce the Error?

Steps to Reproduce:

• Use Odoo as metadata.
• While the backend is running, add a new Edge.
• Launch the backend UI and navigate to /overview.
• None of the edges registered in Odoo are displayed.

[Sn0w3y]

This is not an actual Issue but more of a "Feature" as it is not intended to add more edges in Production without Restarting. If you want you could see in my PR where i tried to fix this "Issue" !

#2505

Greetings

[katsuya]

Thank you for your response. I understand that this should be addressed as a feature rather than a bug. I would like to implement this as a feature, so it would be helpful if you could let me know why #2505 was not merged and what the issues were.

Thank you!

[Sn0w3y]

Hi, i re-opened the PR so we can work on it maybe:

#2827

Please close the Issue so we can see that is is already WIP

[Sn0w3y]

@katsuya could you maybe check my Code in the PR and confirm it working ?