[Zope-ZEO] ZEO Readme

[Nuno Simoes]

Jim Fulton wrote:

> Nuno Simoes wrote:

[...]

> >         - It seems to be impossible to use the declaration of two FileStorages
> > in one *.py file. You have to write to *.py files, one for each *.fs,
> > like this:
> >
> > [store.py]
> > import ZODB.FileStorage
> > News=ZODB.FileStorage.FileStorage('/usr/local/zope/Zope-2.2.2-linux2-x86-server/var/News.fs',read_only=1)
> >
> > [data.py]
> > import ZODB.FileStorage
> > Dados=ZODB.FileStorage.FileStorage('/usr/local/zope/Zope-2.2.2-linux2-x86-server/var/Data.fs')
> >
> > $./start_zeo -SDados=./data:Dados -SNews=./store:News
> 
> No, you can put them in the same module, as in:
> 
>   [data.py]
>   import ZODB.FileStorage
>   Dados=ZODB.FileStorage.FileStorage(
>   '/usr/local/zope/Zope-2.2.2-linux2-x86-server/var/Data.fs'
>   )
>   News=ZODB.FileStorage.FileStorage(
>   '/usr/local/zope/Zope-2.2.2-linux2-x86-server/var/News.fs',
>   read_only=1)
> 
>   $./start_zeo -SDados=./data:Dados -SNews=./data:News
> 
> Note that there was a bug in ZEO 0.2.3 (and earlier).
> This was fixed in 0.4.0.

	I'm using ZEO 0.4.1 + Zope 2.2.2 .

	No, your "data.py" doesn't seems to work. It gives me this errors:

[Storage Server]
[root@maomorta Zope-2.2.2-linux2-x86-server]# Traceback (innermost
last):
  File "./lib/python/ZEO/start.py", line 315, in ?
    if __name__=='__main__': main(sys.argv)
  File "./lib/python/ZEO/start.py", line 312, in main
    asyncore.loop()
  File
"/usr/local/zope/Zope-2.2.2-linux2-x86-server/ZServer/medusa/asyncore.py",
line 138, in loop
    poll_fun (timeout, map)
  File
"/usr/local/zope/Zope-2.2.2-linux2-x86-server/ZServer/medusa/asyncore.py",
line 79, in poll
    obj.handle_error()
  File
"/usr/local/zope/Zope-2.2.2-linux2-x86-server/ZServer/medusa/asyncore.py",
line 357, in handle_error
    self.close()
  File "./lib/python/ZEO/StorageServer.py", line 238, in close
    self.tpc_abort(t.id)
  File "./lib/python/ZEO/StorageServer.py", line 451, in tpc_abort
    r=self.__storage.tpc_abort(t)
  File
"/usr/local/zope/Zope-2.2.2-linux2-x86-server/lib/python/ZODB/BaseStorage.py",
line 157, in tpc_abort
    self._abort()
  File
"/usr/local/zope/Zope-2.2.2-linux2-x86-server/lib/python/ZODB/FileStorage.py",
line 788, in _abort
    if self._nextpos: self._file.truncate(self._nextpos)
AttributeError: _nextpos


[Client]
[root@maomorta Zope-2.2.2-linux2-x86-client]# ./start
[root@maomorta Zope-2.2.2-linux2-x86-client]# Traceback (innermost
last):
  File "/usr/local/zope/Zope-2.2.2-linux2-x86-client/z2.py", line 554,
in ?
    exec "import "+MODULE in {}
  File "<string>", line 1, in ?
  File
"/usr/local/zope/Zope-2.2.2-linux2-x86-client/lib/python/Zope/__init__.py",
line 144, in ?
    OFS.Application.initialize(c)
  File
"/usr/local/zope/Zope-2.2.2-linux2-x86-client/lib/python/OFS/Application.py",
line 363, in initialize
    get_transaction().commit()
  File
"/usr/local/zope/Zope-2.2.2-linux2-x86-client/lib/python/ZODB/Transaction.py",
line 250, in commit
    j.tpc_begin(self)
  File
"/usr/local/zope/Zope-2.2.2-linux2-x86-client/lib/python/ZODB/Connection.py",
line 524, in tpc_begin
    self._storage.tpc_begin(transaction)
  File
"/usr/local/zope/Zope-2.2.2-linux2-x86-client/lib/python/ZEO/ClientStorage.py",
line 458, in tpc_begin
    try: r=self._call(self.__begin, id, user, desc, ext)
  File
"/usr/local/zope/Zope-2.2.2-linux2-x86-client/lib/python/ZEO/zrpc.py",
line 194, in __call__
    if type(r) is TupleType: raise r[0], r[1]
AttributeError: 'None' object has no attribute 'seek'



> > [custom_zodb.py]
> > import ZEO.ClientStorage
> > Storage=ZEO.ClientStorage.ClientStorage(('192.168.0.128',2000),name="ZEO
> > Storage", storage='News')
> 
> I'm not sure what you are trying to say here.

	This is the custom_zodb.py of my ZEO client.

Nuno Simões,
Ruido Visual,

P.s. - Sorry about the extensive cut&paste.