I've just run the attached script about thirty times, and it succeeded 5 times and failed the rest. I've cut out a lot of unnecessary stuff, but it's still a bit long I'm afraid. I'll cut it down some more, but since you seemed so eager to see it ;-) I thought I'd send it along as is.
On a bad run, the dependency tuples look like this:
DEBUG:sqlalchemy.orm.unitofwork.UOWTransaction.0x..50:Dependency sort:
Mapper|User|user
Mapper|Component|component
Mapper|ChangeOrigin|change_origin
Mapper|Label|label (cycles: [Mapper|Label|label,
Mapper|ReleaseLine|release_line])
Mapper|Counter|counter
Mapper|Branch|branch
<sqlalchemy.orm.dependency.MapperStub object at 0x00D59590>
And on a good run they look like this:
DEBUG:sqlalchemy.orm.unitofwork.UOWTransaction.0x..10:Dependency sort:
Mapper|User|user
Mapper|Component|component
Mapper|ChangeOrigin|change_origin
Mapper|ReleaseLine|release_line (cycles:
[Mapper|ReleaseLine|release_line, Mapper|Label|label])
Mapper|Counter|counter
Mapper|Branch|branch
<sqlalchemy.orm.dependency.MapperStub object at 0x00D59670>
Thanks a lot for looking at this,
Simon
Michael Bayer wrote:
>
> I can actually read a fair degree from these dumps, i need
> mostly to know what the actual dependencies are (i.e. which
> classes are dependent on what, whats the error). also when
> you do the full debug echoing the UOW should illustrate a
> series of "dependency tuples"
> which will show what pairs of classes the UOW perceives as
> "dependent" on each other.
>
> On Mar 16, 2007, at 6:59 AM, King Simon-NFHD78 wrote:
>
> >
> > Hi,
> >
> > I'm having a problem where the results of session.flush() vary from
> > one run to another of my test suite. The unit of work
> transaction dump
> > is significantly different from one run to the next, similar to the
> > issue in ticket 461. I haven't managed to make a test case small
> > enough to post to the list yet, and I think I need to delve
> a little
> > further into the code to find out why it's failing.
> >
> > (This is with both 0.3.5 and rev2416)
> >
> > The logs from the UOWTransaction on a failing run and a passing run
> > are below. As well as the ordering being different, there
> is at least
> > one class (ReleaseLine) that doesn't appear in the bad run.
> >
> > Unfortunately I don't know how to go about debugging this.
> I think I
> > need to see exactly what is going on in the dependency sort. Do you
> > have any suggestions for suitable places to add some extra logging?
> >
> > This is a failing run:
> > INFO:sqlalchemy.orm.unitofwork.UOWTransaction.0x..30:Task dump:
> >
> > UOWTask(0x184b2b0, Component/component/None) (save/update phase)
> > |
> > |- UOWTask(0x184bb50, User/user/None) (save/update phase)
> > | |- Save User(0x1851870)
> > | | |- Process User(0x1851870).branches
> > | | |- Process User(0x1851870).reviews
> > | | |- Process User(0x1851870).labels
> > | | |- Process Branch(0x17ee310).user
> > | | |- Process Branch(0x184b190).user
> > | |
> > | |- UOWTask(0x184bb70, ChangeOrigin/change_origin/None)
> > (save/update phase)
> > | | | |- Process Branch(0x17ee310).change_origin
> > | | | |- Process Branch(0x184b190).change_origin
> > | | |
> > | | |- UOWTask(0x184b590, Label/label/None)
> (save/update phase)
> > | | | |
> > | | | |- UOWTask(0x184b1b0, Branch/branch/None)
> (save/update
> > phase)
> > | | | | |- Save Branch(0x17ee310)
> > | | | | |- Save Branch(0x184b190)
> > | | | | | |- Process Branch(0x17ee310).review
> > | | | | | |- Process Branch(0x184b190).review
> > | | | | |
> > | | | | |- UOWTask(0x183f470, Review/review/None)
> > (save/update phase)
> >
> > | | | | | |----
> > | | | | |
> > | | | | |
> > | | | | |- UOWTask(0x184bb30,
> > <sqlalchemy.orm.dependency.MapperStub object at 0x0183FDF0>)
> > (save/update phase)
> > | | | | | | |- Process Branch(0x17ee310).label
> > | | | | | | |- Process Branch(0x184b190).label
> > | | | | | |----
> > | | | | |
> > | | | | |----
> > | | | |
> > | | | |
> > | | | |- UOWTask(0x184bfb0, Counter/counter/None) (save/
> > update
> > phase)
> > | | | | |- Save Counter(0x184b0f0)
> > | | | | |----
> > | | | |
> > | | | |----
> > | | |
> > | | |----
> > | |
> > | |----
> > |
> > |
> > |- UOWTask(0x184bb50, User/user/None) (delete phase)
> > | |
> > | |- UOWTask(0x184bb70,
> ChangeOrigin/change_origin/None) (delete
> > phase)
> > | | |
> > | | |- UOWTask(0x184b590, Label/label/None) (delete phase)
> > | | | |
> > | | | |- UOWTask(0x184b1b0, Branch/branch/None) (delete
> > phase)
> > | | | | |
> > | | | | |- UOWTask(0x183f470, Review/review/None) (delete
> > phase)
> > | | | | | |----
> > | | | | |
> > | | | | |
> > | | | | |- UOWTask(0x184bb30,
> > <sqlalchemy.orm.dependency.MapperStub object at 0x0183FDF0>) (delete
> > phase)
> > | | | | | |----
> > | | | | |
> > | | | | |----
> > | | | |
> > | | | |
> > | | | |- UOWTask(0x184bfb0, Counter/counter/None) (delete
> > phase)
> > | | | | |----
> > | | | |
> > | | | |----
> > | | |
> > | | |----
> > | |
> > | |----
> > |
> > |----
> >
> > And on a good run looks like this:
> >
> > INFO:sqlalchemy.orm.unitofwork.UOWTransaction.0x..f0:Task dump:
> >
> > UOWTask(0x17f2610, User/user/None) (save/update phase)
> > |- Save User(0x17fe9f0)
> > | |- Process User(0x17fe9f0).labels
> > | |- Process Branch(0x17caa10).user
> > | |- Process Branch(0x17f2470).user
> > | |- Process User(0x17fe9f0).reviews
> > | |- Process User(0x17fe9f0).branches
> > |
> > |- UOWTask(0x17f2a50, ChangeOrigin/change_origin/None)
> (save/update
> > phase)
> > | | |- Process Branch(0x17caa10).change_origin
> > | | |- Process Branch(0x17f2470).change_origin
> > | |
> > | |- UOWTask(0x17f29f0, Component/component/None) (save/update
> > phase)
> > | | |
> > | | |- UOWTask(0x17f2ad0, ReleaseLine/release_line/None)
> > (save/update phase)
> > | | | | |- Process Branch(0x17caa10).release_line
> > | | | | |- Process Branch(0x17f2470).release_line
> > | | | | |- Process Counter(0x17fed10).release_line
> > | | | |
> > | | | |- UOWTask(0x17f2430, Counter/counter/None) (save/
> > update
> > phase)
> > | | | | |- Save Counter(0x17fed10)
> > | | | | |----
> > | | | |
> > | | | |
> > | | | |- UOWTask(0x17f2450, Branch/branch/None)
> (save/update
> > phase)
> > | | | | |- Save Branch(0x17caa10)
> > | | | | |- Save Branch(0x17f2470)
> > | | | | | |- Process Branch(0x17caa10).review
> > | | | | | |- Process Branch(0x17f2470).review
> > | | | | |
> > | | | | |- UOWTask(0x17faf70, Review/review/None)
> > (save/update phase)
> >
> > | | | | | |----
> > | | | | |
> > | | | | |
> > | | | | |- UOWTask(0x17f2810,
> > <sqlalchemy.orm.dependency.MapperStub object at 0x017DF590>)
> > (save/update phase)
> > | | | | | | |- Process Branch(0x17caa10).label
> > | | | | | | |- Process Branch(0x17f2470).label
> > | | | | | |----
> > | | | | |
> > | | | | |----
> > | | | |
> > | | | |----
> > | | |
> > | | |----
> > | |
> > | |----
> > |
> > |
> > |- UOWTask(0x17f2a50, ChangeOrigin/change_origin/None) (delete
> > phase)
> > | |
> > | |- UOWTask(0x17f29f0, Component/component/None)
> (delete phase)
> > | | |
> > | | |- UOWTask(0x17f2ad0, ReleaseLine/release_line/None)
> > (delete
> > phase)
> > | | | |
> > | | | |- UOWTask(0x17f2430, Counter/counter/None) (delete
> > phase)
> > | | | | |----
> > | | | |
> > | | | |
> > | | | |- UOWTask(0x17f2450, Branch/branch/None) (delete
> > phase)
> > | | | | |
> > | | | | |- UOWTask(0x17faf70, Review/review/None) (delete
> > phase)
> > | | | | | |----
> > | | | | |
> > | | | | |
> > | | | | |- UOWTask(0x17f2810,
> > <sqlalchemy.orm.dependency.MapperStub object at 0x017DF590>) (delete
> > phase)
> > | | | | | |----
> > | | | | |
> > | | | | |----
> > | | | |
> > | | | |----
> > | | |
> > | | |----
> > | |
> > | |----
> > |
> > |----
> >
> > >
>
>
> >
>
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single_test.py
Description: single_test.py
