"no market data matches the query parameters" error

Technical Help
#1

Hi

We are tyring to use the collect_market_data function different times along the day.
In the first place we create our tick database with the create_tick_db function. Then we also check that the database is correctly created (using list_databases function).
In some random times, suddently, we get a "No market data matches the query parameters" error.

2021-08-19 13:29:01 quantrocket.countdown: ERROR Error running /opt/conda/bin/quantrocket satellite exec codeload.scripts.get_realtime_bars.main --params universe:occamuniverse repeat_during:5m is_add_auction_fields:True
2021-08-19 13:29:01 quantrocket.countdown: ERROR msg: 'error running function: (''400 Client Error: BAD REQUEST for url: http://houston/realtime/occamuniverse20210819t132802db.csv'',
2021-08-19 13:29:01 quantrocket.countdown: ERROR {''status'': ''error'', ''msg'': ''no market data matches the query parameters''})'

What can be the problem?

#2

There’s no general answer I can give as to why a particular database doesn’t have data. It obviously depends on the database parameters and what the data provider is sending back. You’ll have to dig in deeper if you’re expecting data and not receiving it.