The issue is that sqlite database is locked every time it is accessed.
So if you have a-lot of concurrent requests, some of those will fail
due to it being locked by other threads.

The solution is to use a database that does not rely on locking such
as postgresql or mysql.

-Thadeus





On Thu, Mar 4, 2010 at 2:57 PM, vince <lapcc...@gmail.com> wrote:
> here's some more errorlog just fyi.
>
> actually it's easy to reproduce when opening page with lots of image
> needs to be download via web2py
>
> Traceback (most recent call last):
>  File "/home/web2py/gluon/main.py", line 488, in wsgibase
>    session._try_store_in_db(request, response)
>  File "/home/web2py/gluon/globals.py", line 358, in _try_store_in_db
>    record_id = table.insert(**dd)
>  File "/home/web2py/gluon/sql.py", line 1879, in insert
>    self._db._execute(query)
>  File "/home/web2py/applications/skyyer/models/db.py", line 76, in
> <lambda>
>    db['_execute']=lambda *a,**b:
> timer(db,lambda:db._cursor.execute(*a,**b))
>  File "/home/web2py/applications/skyyer/models/db.py", line 73, in
> timer
>    f()
>  File "/home/web2py/applications/skyyer/models/db.py", line 76, in
> <lambda>
>    db['_execute']=lambda *a,**b:
> timer(db,lambda:db._cursor.execute(*a,**b))
> OperationalError: database is locked
>
>
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