[mythtv-users] Mythbackend problem

[Brian Wood]

On Wednesday, June 30, 2010 04:26:50 pm Toby Mills wrote:
> Mythbuntu 10.04 + daily builds on i386, 500Mb RAM
> 
> 1 x Skystar DVB card + 1 x PVR150
> 
> 
> 
> I am having a problem with Mythbackend.
> It randomly stops responding, the process is still running and consuming
> only about 12% of CPU and it continues to record fine, however none of the
> frontends can connect and mythweb times out.
> 
> There is nothing of any note in the logs (see below), the issue occurs
> almost daily at a random time and does not appear to be linked to the
> number of recordings or things being played back. Sometimes it happens
> when recording one program, sometimes while nobody is watching anything,
> other times it happens when watching and recording 6 things at once.
> 
> It occurred today at 8:03am (see logs below)
> 
> The only way to resolve is to stop and restart mythbackend and then clients
> can connect again immediately.
> 
> I've searched the depths of google looking for a solution and have tried
> everything I have found so far (MySQL tweaks, turn of UPNP, turning off
> cron jobs, upgrading myth versions).
> 
> If anyone has any suggestions on how I can trace this problem it would be
> much appreciated.
> 
> 
> 
> I don't think it is a frontend issue as it can occur when no frontends are
> connected, likewise this rules out a network issue.

I'd look at the NIC in the backend and its drivers. What NIC hardware is the B/E using?

There are many things that can cause things like this, but that's where I'd start.