[SQLObject] This transaction has already gone through ROLLBACK

[Sophana K <sop...@gm...>]

Hello

I'm using transactions in sqlobjects since years in my web application.
But since some months, I receive these exceptions:

in update
    hubNoCache.doInTransaction(updateSubscr,self.id)
  File "/usr/lib/python2.5/site-packages/SQLObject-0.10.2-py2.5.egg/sqlobject/dbconnection.py",
line 856, in doInTransaction
    conn = old_conn.transaction()
  File "/usr/lib/python2.5/site-packages/SQLObject-0.10.2-py2.5.egg/sqlobject/dbconnection.py",
line 754, in __getattr__
    self.assertActive()
  File "/usr/lib/python2.5/site-packages/SQLObject-0.10.2-py2.5.egg/sqlobject/dbconnection.py",
line 678, in assertActive
    assert not self._obsolete, "This transaction has already gone
through ROLLBACK; begin another transaction"
AssertionError: This transaction has already gone through ROLLBACK;
begin another transaction

It looks like its related with the mysql server being overloaded. But
I still don't understand why.
I've been looking at the source and don't understand how this can
happen. I never call rollback in my source, and always make
transactions through doInTransaction.

In the traceback I don't understand why there are missing step between
conn = old_conn.transaction() and self.assertActive(). It should go
through the Transaction constructor.

Please help.