[OpenAFS-win32-devel] Re: cache consistency

Juan Carlos Schroeder jcsc@adinet.com.uy
Wed, 8 Sep 2004 01:27:06 -0300


Question already answered.

Thanks and sorry,
Juan Carlos

"Juan Carlos Schroeder" <jcsc@adinet.com.uy> escribió en el mensaje
news:chj2de$gcr$1@sea.gmane.org...
> Hi:
>
> I wanted to ask some questions about caching in AFS.
> I've used a Windows clients (1.3.66) with a RH8 Linux (1.2.11) server to
> test "write" operations performed by MS Word clients. The connection
betwwen
> clients and servers is a very low bandwidth connection (64Kbps).
> Using this applications in the clients, I've found that "write" operations
> are "synchronous" on the server, and each time I save the document, the
> applications hangs waiting the updates to be propagated to servers. That
> makes the usage very annoying each time I perform a "save" operation
because
> the AFS protocol seems to be very inefficient (in KB/s transferred in
saving
> the document) in these updates, because with a 250KB document the save
> operation lasts up to 2 minutes.
>
> The questions are:
> 1) I wanted to ask if I wanted to ask if the "consistency" model for
writes
> is to update synchronously servers each time a "write" operation is
> performed.
> I've not used Linux clients, so I wanted to ask if this is the same for
> them.
>
> 2) In case of being "true" the answer for the first question I wanted to
ask
> if there is any configuration settings for the cache or anything to
optimize
> the performance of the protocol for my particular needs. These are mostly
> creation, edition and update of small documents (most of them less than
> 200Kb, and the rest not more than 500 KB).
>
> Thanks in advance,
> Juan Carlos