[mythtv-users] How to force frontends to play only from master backend?

Harry Coin hcoin at quietfountain.com
Sun Mar 15 16:11:11 UTC 2009


Using 0.21 I need help to cause frontends to play from the 
'masterbackend' only, even though diskless other slave backends that 
received and stored the shows are running on the same little net.

I have some older, slower diskless PC's acting as slave backends.  These 
were just supposed to catch the video and put it on the common nfs 
share, never host playbacks.   There is a master backend that has an NFS 
share that all the frontends and backends can access.  The masterbackend 
is fast, has quick disks and has a fast network connection.

But, I've proven that the frontends actually don't actually pull from 
the master backend either stream or nfs, but contact the slave backend 
that recorded the video, cause that little underpowered thing to pull 
the video from the nfs share, then stream it out to the frontend.    So, 
bad performance, choppy playback, dropped frames on recording and so on.

So, I really need to turn off any kind of playback activity / streaming 
from all the diskless slave backends - but to have them still be running 
to host the tuner cards and record shows.   Help please!

Last, I'd appreciate some guidance about whether the frontends would do 
better to use NFS to playback from the server, or cause the server to 
stream -- and tell me how to direct the frontends to implement that 
decision.

Thanks much!

Harry



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