On Apr 7, 2011, at 12:46 AM, Randy Syring wrote:
> I am running Ubuntu 10.04, python 2.6.5, SA 0.6.6, latest pyodbc
> release. I have tried FreeTDS that ships with the distro (0.82) as
> well as current CVS. I can make a connection and issue a basic SQL
> statement. However, when I try to run my unit tests, I get the
> following error:
>
> *** glibc detected *** /path/to/venv/bin/python: free(): invalid next
> size (fast): 0x0000000002527bf0 ***
nothing ive seen before with freetds (and I use freetds a lot) - so your steps
would be to isolate the problem into something reproducible, then ask on the
FreeTDS or possibly pyodbc lists, possibly first converting it into a straight
pyodbc script so there are at least fewer layers of abstraction at play.
>
> The SQL issued just before that error is:
>
> 2011-04-07 00:26:39,257 INFO sqlalchemy.engine.base.Engine.0x...0350
> INSERT INTO corporate_sessions (createdts, updatedts, id, hits,
> relatedip, user_id) VALUES (?, ?, ?, ?, ?, ?)
> 2011-04-07 00:26:39,257 INFO sqlalchemy.engine.base.Engine.0x...0350
> (datetime.datetime(2011, 4, 7, 0, 26, 39, 257073), None,
> u'e1457896AdZgRjqg8CD8', 0, '10.66.3.230', 1)
>
> and then the process just hangs and I have to kill the process.
>
> My unit tests run successfully against sqlite, postgresql, and MSSQL
> on Windows. I have successfully ran the following test script on with
> the same libraries and virtualenv:
>
> import datetime
> import sqlalchemy as sa
> eng = sa.create_engine("mssql://user:pass@server/temp?
> Port=1435&TDS_Version=8.0",echo=True)
> res = eng.execute('select 1+1 as foo')
> for row in res:
> print 'answer=',row['foo']
>
> #eng.execute('DROP TABLE satest')
> #eng.execute('CREATE TABLE satest(id INT, name VARCHAR(300), ts
> datetime)')
>
> res = eng.execute('INSERT INTO satest(id, name, ts) VALUES (?, ?, ?)',
> (10, u'foobar', datetime.datetime(2011, 4, 7, 0, 26,
> 39, 257073)))
>
> One last thing, when I first tested this, I got an error related to
> using an ORM instance when it had already been deleted (or something
> like that, I can't remember exactly). But I haven't seen that error
> for a long time and don't remember doing anything in particular to
> change it.
>
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