[Zope] Zope Session error (has: Unidentified Zope error)

[kepes.krisztian]

Hi Dieter !

Dieter Maurer wrote:

>kepes.krisztian wrote at 2004-10-4 09:24 +0200:
>  
>
>>...
>>2004-07-20T16:32:35 ERROR(200) ZODB Couldn't load state for 0000000000000e80
>>Traceback (most recent call last):
>> File "c:\zope\lib\python\ZODB\Connection.py", line 562, in setstate
>>   self._set_ghost_state(obj, p)
>> File "c:\zope\lib\python\ZODB\Connection.py", line 607, in 
>>_set_ghost_state
>>   setstate(state)
>> File "c:\zope\lib\python\Products\Transience\Transience.py", line 881, 
>>in __setstate__
>>   new_slices = getTimeslices(
>>AttributeError: _period
>>    
>>
>
>I know this problem when I have an inconsistency between
>our own "Transience" implementation or the stock
>"Transience" implementation on which it builds.
>  
>
Sorry, but I didn't understand, what you wrote about.
I do that:
I install zope 2.7.1 in window xp, and I use it.
And I install 2.7.x (?) in debian linux (compile), and I use it.
Every installer is came from zope.org.

I use these products: External Editor, KinterbasdbDA, and my owned
product. No one of these products are used by session.

So: session.
When I log in to server, I put 8 items to session, and I read them in
every request.
I don't store anything else in session, I use my websessionstore table
to exchange datas.

This code in 2.6.3 is working good. And it is working good with my
localhost (Mozilla, IE, etc).

The problem is get when I want to show the page to my boss, and his IE
is crashing my zope with these session errors.
But I'm the man who not like the non-repeatable errors. If a component
or program drop an errors, I never trust in it again.

If I get this problem with boss-IE, possible (may be) I get this error
with another IE (the program users are many).
So how to I trust in Zope 2.7.x ?

Yesterday I try to downgrade, but the 2.6.4 have a problem with
kinterbasdbda, and I cannot do that.

>Almost surely, this is not the reason for you.
>  
>
Not  the reason, or not reasonable for me ? :-)
(Yes, these errors are not reasonable for me !)


>But maybe, you, too, have either a code or code/data inconsistency?
>  
>
What do you think when you write this ?

>Did you make a clean install of "Transience"?
>  
>
I use zope's windows  installer. In debian I compile with setup.
(In debian I don't see this problem, only in my developer machine (win).
But if is exists in win, may be exists in debian !).

>Do your session data lives in a RAM storage (default) or
>in a FileStorage?
>
>  
>
Yes, I use RAM storage. How to I use file storage ?
Please help me: how to I install, or where I found this product ?

>  
>
>>...
>>When I try to change server to 2.7.3.b, it is drop another errors:
>>
>>
>>
>>2004-10-01T17:30:30 ERROR(200) ZODB Couldn't load state for 0x0e44
>>Traceback (most recent call last):
>> File "c:\zope\lib\python\ZODB\Connection.py", line 600, in setstate
>>   self._set_ghost_state(obj, p)
>> File "c:\zope\lib\python\ZODB\Connection.py", line 645, in 
>>_set_ghost_state
>>   setstate(state)
>> File "c:\zope\lib\python\Products\Transience\Transience.py", line 977, 
>>in __setstate__
>>   oldlength = state['_length']
>>KeyError: '_length'
>>    
>>
>
>Apparently, your session data lives in a long living
>storage (not RAMStorage) and the session pickles there
>lack some information which is not relevant.
>  
>
2..7.3b is a trying. It is drop this error, when I try to find something
in the zope man. intf. So not that the main problem.

>Shut your Zope down and discard all existing session data.
>
>  
>
Ahhh... But it is not too good.
Many user working with zope system. If anyone make this error, all user
are pushed out, because RAM st. is cleared, so they are must be login
again to continue work...


Thanx:
KK