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# MySQLdb._exceptions.OperationalError: (1040, 'Too many connections')
## Tags
* assigned: bonfacem, fredm, aruni
* type: bug
* keywords: mysql, database
## Tasks
* [x] Figure out root cause
* [x] Send patch
## Description
See the strack trace present in this page:
=> https://ci.genenetwork.org/jobs/genenetwork2/214
### Debug notes
The function decorated with `@app.before_requests` is called before every request, even ones retrieving static files like CSS and JS files. This executes the `sqlalchemy.create_engine(...)' statement many times for each page.
I started by checking whether the request is to a *static* or *js* endpoint, and if it is, we do not bother trying to create the engine in that case.
This does not resolve the issue per-se, but it does reduce a lot of the noise when logging.
## Closing for now
We have not been able to reproduce this issue for the last few months. I am closing it for now, but we may reopen it if it recurs.
* closed
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