DART stops parsing data to DB

[niedk1]

Describe the bug
DART will periodically stop parsing data to the DB (we suspect), when we try to do a database query using TLM extractor it will show no results past a certain date/time after this issue manifests. Typically no error messages are shown in the DOS prompt window. Sometimes restarting DART will correct the problem but it will eventually manifest again, additionally if it's restarted the data is all delayed. For example while testing this yesterday we ran the software for about 7 hours and had the issue manifest at 10 PM last night. After restarting DART today, the data is slowly being ingested into the database but is about 12 hours behind now. (We can only query data from this morning at this point) In the past we've also had error messages randomly (Maybe related)?: "WARN: Ignored Failed Config" , "ERROR: Could not load System Config" and "DART - ERROR: Unexpected process died... respawning". Since installation we've never been able to get the DART functionality to work for more than a week or so, all data trending has been done by processing the tlm and cmd bin files manually which is not ideal. When we've had this issue manifest, the only way we've been able to correct it is to delete the SQL dart and darttest DB and rebuild it from scratch. Additionally, when trying to import bin files manually using the dart_importer, we get errors.

To Reproduce

1. Start COSMOS
2. Start Data Acquisition
3. After some period of time issue manifests, sometimes with error message and sometimes without.

Expected behavior
Ability to retrieve data from the DART database.

Screenshots
Dart Importer error:

Environment (please complete the following information):

• OS: Windows Server 2019
• COSMOS Version 4.5.2

[ryanmelt]

Hello - COSMOS 4 is no longer supported. We just released OpenC3 COSMOS 6.2.1 and I would recommend checking that out. DART has been replaced with a similar API called the StreamingApi that no longer stores data into a SQL database, but into a much simpler file based database.