[mythtv-users] PVR-350 NFS, Local Recording and Remote Live-TV

Dan Littlejohn dan.littlejohn at gmail.com
Tue Apr 5 16:09:31 UTC 2005


How big did you set the buffer for the slave tv and is there space for
it on the nfs?

How did you set up the user accounts?  Is the slave recording as root
or a mythuser on the nfs share?

Dan

On Apr 5, 2005 10:47 AM, dfleming at swings.2y.net <dfleming at swings.2y.net> wrote:
> The MythTV scenario is this:
> 
> System1 - Master with PVR-250 and large disk.
> 
> System2 - Slave, completely diskless with PVR-350.  Recordings are
> stored centrally on Master via NFS.  PVR-350 is also used for TV-out.
> 
> I need help isolating my problem.  If I attempt to watch Live-TV on
> System2, the slave, while it is recording it becomes unstable.
> 
> Just to clarify, System2 is recording, Live-TV is selected so System1,
> the Master, streams the video and it is rendered on the TV connected to
> System2.
> 
> Initially things are fine.  The problem gets progressively worse if I
> pause live-TV.  Once live-TV is roughly 3 minutes behind the system
> begins to stutter; hanging for a second or two, then video is played for
> 5-10 seconds.
> 
> I'm not sure how to pin this issue down -- whether the problem is with
> MythTV, my hardware or my network.
> 
> My diskless slave is a Via c3 500mhz system.  If it is not recording
> watching live-TV works perfectly.  However in this scenario the Master
> is not streaming anything to it.  All the work is being done by the
> slave; encoding and decoding.
> 
> The only time the slave system gets unhappy is when it is recording and
> video is streamed to it.  The slave can be recording and I can watch
> that recording in progress no problem.  It only seems to occur if the
> slave is recording and I try and watch live-tv.
> 
> Here is some other information if it helps.  The Master is a 2.8Ghz
> Celeron; this is also the system Mysql runs on.  My network is 100
> megabit Ethernet with an 8 port switch.
> 
> I intentionally setup the problem and ran top on the Master, no
> processes seemed to be hogging up resources.  (Shoot, I guess I should
> have ran top on the slave.  I didn't think about it until just now.)
> 
> Any ideas?
> 
> Thanks,
> 
> ---Dan
> 
> 
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