[mythtv-users] strange NFS problem
jack10000 at home.nl
Sat Feb 14 12:01:46 EST 2004
Op za 14-02-2004, om 17:28 schreef Chris Pinkham:
> > Thanks Keith & Jason
> > It was indeed the commercial flagging.Turned it of and...no problem.
> > Guess when using a network its more of a problem then with a local
> > harddisk.
> > Jack
> Shouldn't be an issue unless you've got network problems/issues to begin
> with. I have run my Myth system on NFS from day one and submitted part
> of the code that allowed the frontend to play the file directly from NFS
> if available rather than streaming from the backend.
> I have 2 backends with 4 tuners (1 software, 3 hardware) going and haven't
> had any problems related to NFS ever. My NFS server is a measly
> dual Pentium Pro 200 system with only about 10MB/sec transfer rate on
> the hard drives but still fast enough to saturate the 100Mbit ethernet.
> The fileserver also runs the MySQL database (albeit slow sometimes when
> going into the program finder and listing all programs). :)
> Using NFS on the frontend instead of just the backend can actually cut
> down on network traffic if you mount your video directory on your
> frontend servers. When you use NFS for just the backend, the frontend
> streams the video from the backend and the backend is reading from your
> NFS server. So the traffic goes over the net twice. If your frontend
> can mount the NFS directory also then the frontend will just get the video
> straight from the NFS server which in turn takes a little strain off your
> backend server. It's not that big of a load to stream the video, but it
> can play havoc with your file cache on the server since you're streaming
> a file that's bigger than memory so the cache is constantly getting flushed.
> Anyway, NFS shouldn't be an issue, lots of people are using it including
> several Myth developers.
My network works fine. I Only use it to store recordings.
But it's only 10 Mb. After recording a show theres still some activity
related to comercial flagging. (I now now :-))
During that time I'm not able to start a new recording because my
network is way to loaded.
In the near future I'll upgrade it to 100 Mb. Them there will be plenty
And you are right NFS shouldn't be an issue..
More information about the mythtv-users