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I'm interesting in lvs servers too :)
But your questions are identical to mine :
Is there a good way to share files ?
What about using local rsync between web servers ?
Coda is under development ( and resource expensive ) , nfs
out-of-question, other distributed file systems projects need more
testing.
About logging, can web servers write to the same file ? But where to put
these global logs ? I think it is not a good idea ( nor possible in a
slow network ) .
the only way i see is to periodically concatenate all logs files and
make analysis on that.
What about lvs and ftp ?
When somebody uploads a new file ( an html file i.e. ) to update his
website it must be present for any web servers in lvs. So we can put
these files in a shared directory ( shared by ftp and web servers ). But
it can be a big load ...
We can have a directory containing web pages for each web server ( but
it losts space ) with a synchronization between ftp dir and web dirs...
It's a bit complicated ...
I need more informations on that, any help welcome :=)
Laurent Monin
lmonin@xxxxxxxxxxxxxxx
On 20 Déc, Emmanuel Anne wrote:
> A message was posted on this mailing list recently but it did not get any
> answer.
>
> The problem looks quite important though.
> I am about to setup 2 lvs web servers. I would have liked to setup a virtual
> file system for them, but there are some problems :
>
> Using nfs is out of the question. Too slow, and if the nfs server crashes,
> bye-bye everyone.
>
> Using quota is quite expensive in memory use, even for the client. The client
> seems to need about 10% of the cache size in memory ! Considering that a
> normal
> cache should be about 100 Mb, it is 10 Mb !!!
> And where to put the coda server ? On the "Liinux director" ? But then, how
> will the throughput react in the network (the director receives the requests,
> forward them, and at the same time servers coda requests... Is it reasonable
> ?).
> If not setting up the coda server in the director, then I have to setup at
> least 2 more servers (one server and its backup)...
>
> And finally there is the problem about the logs. Apparently the best is to
> have
> each web server process its log file on a local disk, and then to make stats
> on
> both log files for the same period... It can become quite complex to handle,
> is
> there not a way to have only one log file for all the servers ???
>
> Please take the time to try to give me answers...
> It would be very helpfull !!!
>
> Emmanuel Anne - ABS
> Tél : 01 53 45 90 93
> email : emanne@xxxxxxxxxxxx
> site web : http://www.absysteme.fr
>
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