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MyASPN >> Mail Archive >> zodb
zodb
Re: [ZODB-Dev] ZODB 3.9.3 history call causing problems for storages that still accept version parameters
by Chris Withers other posts by this author
Nov 2 2009 2:04AM messages near this date
Re: [ZODB-Dev] ZODB 3.9.3 history call causing problems for storages that still accept version parameters | Re: [ZODB-Dev] ZODB 3.9.3 history call causing problems for storages that still accept version parameters
Christian Theune wrote:
> > Would anyone object if I wrote a test and fixed this on the 3.9 branch
> > of ZODB? I'm not really sure what to do about the trunk...
>  
>  I think that's the best idea. It's not exactly part of the policy of
>  supporting old protocols but if we want to support and encourage 3rd
>  party storage implementations we should leverage this simple fix for
>  better backwards compatibility.

Hmmm, I'm less sure now. The problematic code is here:

http://zope3.pov.lt/trac/browser/ZODB/branches/3.9/src/ZEO/StorageServer.py#L1379

It looks like ZEOStorage308Adapter is used when the protocol specified 
is less than Z309, which it is in my case. But, the assumption here is 
that the storage being served by StorageServer effectively matches the 
Z309 API. zeoraid's RAIDStorage does not...

However, I can't see what `history` method is called if the protocol > = 
Z309. Christian, I'm guessing you guys have used zeoraid with 3.9 from 
some time now, does this issue not occur if everything is talking Z309? 
If not, why not?

Chris

-- 
Simplistix - Content Management, Batch Processing & Python Consulting
            - http://www.simplistix.co.uk
_______________________________________________
For more information about ZODB, see the ZODB Wiki:
http://www.zope.org/Wikis/ZODB/

ZODB-Dev mailing list  -  ZODB-Dev@[...].org
https://mail.zope.org/mailman/listinfo/zodb-dev
Thread:
Chris Withers
Christian Theune
Chris Withers
Chris Withers
Christian Theune
Chris Withers
Jim Fulton
Chris Withers
Chris Withers
Jim Fulton
Chris Withers
Jim Fulton
Chris Withers
Jim Fulton
Chris Withers

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