Hello, I’m using the MongoDB plugin on Railway, on the Hobby plan, and I noticed the storage usage is increasing by about 1MB per day, even without any visible inserts or updates in the collections.

I have been testing for 3 days, without adding new data, and the instance stays idle around 90% of the time. Although it’s active, it’s not connected to the backend yet, as I’m evaluating a possible migration from MongoDB Atlas to Railway.

I would like to understand what might be causing this storage growth (e.g., internal logs, WiredTiger overhead, etc). Is this behavior expected even with the instance being practically inactive?