[Zope] FileSystem Storage

[Jason Spisak]

Pavlos:

> I would suggest that splitting should be done at the transaction level not
> the individual object level. 

Is that because this other stuff would mean a comlpete re-write of Zope
interface to the ZODB?

>Initially one might keep the whole system as
> is,

You mean a single ZODB file?

> and run a seperate process that monitors data.fs and caches a map of
> transaction ids to byte offsets. 
>A client can place a request to that
> process passing as parameters a transaction id (and a few other things)
> and the server process returning the data segment of Data.fs that occured
> after that transaction. If packing has occured the server can notify the
> client about it, and then it is up to the client to deal with 'its own'
> Data.fs. The client upon receiving the data can either append them to the
> Data.fs or store them individually. A script then can use those
> segments to reconstruct a snapshot Data.fs for a specified time.
> 

Very interesting proposal.

> What you are suggesting is more interesting but I think also more
> difficult.

Isn't that always the way?

Jason Spisak
CIO
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