Hello,
I'm using Sqlite3 module through Twisted's enterpirse.adbapi, I create the
ConnectionPool instance like this:
self.dbpool = ConnectionPool("sqlite3", db_filename,
check_same_thread=False)
You can see the code at
https://repos.goffi.org/sat/file/tip/src/memory/sqlite.py
Sometime, the writing is failing with following exception:
Failure instance: Traceback: <class 'sqlite3.OperationalError'>: database is
locked
So I wonder if the database is correctly used, did anybody experienced
something similar with Twisted and Sqlite ?
Should I just augment timeout as advised at https://stackoverflow.com/a/
8618328? Looks like more a workaround than a clean solution.
Python 2 documentation doesn't talk about check_same_thread argument, but
Python 3 at https://docs.python.org/3.5/library/sqlite3.html#sqlite3.connect
says that writing operation should be serialized by the user (I thought it was
the default as said in https://sqlite.org/threadsafe.html), how should I
achieve that?
Also PRAGMA are not working (specially "PRAGMA foreign_keys = ON"), I guess
because of multi-threading, what is the good way to activate foreign_keys for
all following request?
Thanks in advance
Goffi
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