I’ve been exploring how to configure default persistence for my openHAB setup using RRDJ4. Initially, I faced some confusion with the documentation and UI configuration. Here’s my journey and what I learned!
The Challenge:
I wanted to set up RRDJ4 to handle default persistence for all my items while also adding MapDB for specific string items. However, configuring this through the UI seemed to override my default settings, causing persistence issues. The documentation mentioned .persist files, but it wasn’t clear how they interacted with UI configurations.
The Solution:
After some trial and error, I discovered that using the UI for specific items and groups works well. For all items, I needed to manually add a wildcard * in the configuration, even though the UI didn’t allow it directly. This required editing the JSON configuration file manually, which I found a bit tricky at first.
Key Takeaways:
- UI vs. Manual Configuration: The UI is great for specific items but might not handle wildcards for all items. Manual JSON editing was necessary for my setup.
- Documentation Clarity: While the docs are helpful, there’s room for improvement in explaining how UI and .persist file configurations interact.
- Testing: After making changes, it’s crucial to test persistence thoroughly. I restarted openHAB each time to ensure settings were applied correctly.
Final Thoughts:
It was a bit of a learning curve, but I now have RRDJ4 handling default persistence seamlessly, and I’m ready to integrate MapDB next. This experience reinforced the importance of understanding both UI and manual configuration methods in openHAB. If anyone has tips or tricks for combining persistence strategies, I’d love to hear them!
Happy automating! 