[ZODB-Dev] Items committed in one thread not seen in another thread?

[Christian Robottom Reis]

On Wed, Mar 09, 2005 at 05:17:41PM +0000, Gwyn Evans wrote:
>   _storage = FileStorage.FileStorage('crmRetryDb.fs')
>   database = DB(_storage)   # Common to multiple threads
> 
> but the two threads have their individual 'root' instances, each
> obtained as below -
> 
>   dbConn = database.open() # Thread-specific
>   root = dbConn.root()
> 
> The persistance is done as below, where d = a dictionary -
> 
>   self.dbRoot[recId] = d
>   get_transaction().commit()
> 
> If I stop and restart the app, so I'd not starting with an empty DB,
> the second thread will find the entries that were persisted in the
> previous session, but new ones aren't seen (until a further restart,
> and so on!)

A thread has a local view of its object, and modifications made in other
threads are not visible "automatically": you need to call sync() on the
connection, or abort()/commit() a transaction.

Take care,
--
Christian Robottom Reis | http://async.com.br/~kiko/ | [+55 16] 3361 2331