Re: [Webware-discuss] Bug in 0.8 Session Handling

[Stuart D. <st...@as...>]

SessionMemoryStore is perhaps misnamed.  There was some discussion on 
this topic a short while ago on the webware-devel list.  

The SessionMemoryStore keeps sessions in memory but when the AppServer 
is shut-down will still save them out to disk, requiring that sessions 
must be capable of being pickled.

There was some discussion of developing a SessionMemoryOnlyStore, or 
perhaps a SessionNonPersistent store that would not be persistant across 
restarts of the AppServer.  However this has not happened yet.

I would recommend just not storing non-pickleable data in session 
objects.  What I have done in my case is to store in the session object, 
enough data to re-construct the non-pickleable data if necessary.  

-Stuart-


Pedro Beck Gomes da Costa wrote:

>Hi!
>
>I started to use 0.8 today (was using CVS version for DEV and 0.7 in
>production).
>As I save COM objects in Session, I configure Webkit to use store my
>sessions in Memory, or I get 'UnpickleableError' errors
>Here is that part of my Application.config:
>"""
>......
>       },
>
> 'SessionStore':         'Memory',  # can be File or Dynamic or Memory
> 'SessionTimeout':              60,  # minutes
> 'MaxDynamicMemorySessions': 10000, # maximum sessions in memory
> 'DynamicSessionTimeout':       15, # minutes, specifies when to move
>sessions from memory to disk
> 'SessionPrefix':             None, # can be set to "hostname" or any other
>string to prefix the session ID
> 'IgnoreInvalidSession':         1,
> 'UseAutomaticPathSessions':     0,
>
>......
>"""
>
>But I get this errors:
>
>Traceback (most recent call last):
>  File ".\WebKit\SessionFileStore.py", line 78, in __setitem__
>    self.encoder()(item, file)
>UnpickleableError: Cannot pickle <type 'PyIDispatch'> objects
>
>
>
>How can I get Errors from SessionFileStore.py, if I should be using
>SessionMemoryStore.py ??
>
>Pedro Costa
>
>
>
>
>
>
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