Sensors check-in periodically, but network connectivity issues may cause them to check-in with the same data more than once.
MongoDB does not allow the
unique property on secondary indexes for timeseries collections (MongoDB 5.0). Timeseries Limitations
In addition, calculations need to be done on the data (preferably using aggregations) that involve counting the number of entries, which will be inaccurate if there are duplicates. Not to mention it bloats the database and is just messy.
Is there any way to prevent duplicate entries in a MongoDB Timeseries collection?