#18135: Sleeping Database Connections on Startup with MySQL
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Reporter: Mnewman | Owner: nobody
Type: Bug | Status: new
Component: Uncategorized | Version: 1.4
Severity: Normal | Resolution:
Keywords: MySQL | Triage Stage: Accepted
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
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Changes (by akaariai):
* stage: Unreviewed => Accepted
Comment:
I did a little digging and the reason for the connection is that model
validation needs to know server version, and checking server version opens
a connection which is then not closed. So, this code in
mysql/validation.py:
{{{
try:
db_version = self.connection.get_server_version()
text_version = '.'.join([str(n) for n in db_version[:3]])
except OperationalError:
db_version = None
text_version = ''
}}}
seems to need some way to close the connection. I am not sure if it is
safe to just have a "finally: close connection" in there. Maybe it should
be checked that if there is no existing connection when entering this
function, but there is one when leaving it, then close the created
connection.
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Ticket URL: <https://code.djangoproject.com/ticket/18135#comment:3>
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