[mythtv-users] Recurring, Intermittent Error with Myth where tuners/listings go away ?

[Paul]

Hello.  I'm running mythbuntu 10.10, myth 0..23-fixes and I am getting 
some random, intermittent issues recently.  Having lost my frontend a 
while back to a water spill I'm currently mainly using my backend via 
mythweb and downloading files to my laptop to watch.  My backend also 
runs email, a wiki and monitoring via cacti.  Every so often it seems 
that parts of the backend process fall over.

The main symptoms are that the cacti trace for tuners in use goes to 
zero (i.e the tuners disapear).  at the same time the 'Upcoming 
recordings'page of mythweb shows no upcoming recordings and I get this 
error if I try to open the status page of MythWeb;

*Warning* at /usr/share/mythtv/mythweb/modules/status/handler.php, line 35:
file_get_contents(http://192.168.0.13:6544): failed to open stream: HTTP 
request failed!

------------------------------------------------------------------------
------------------------------------------------------------------------

*Warning* at 
/usr/share/mythtv/mythweb/modules/_shared/tmpl/default/header.php, line 16:
Cannot modify header information - headers already sent by (output 
started at /usr/share/mythtv/mythweb/includes/errors.php:148)

I've looked in /var/log/mythtv/mythbackend.log but can't see anything 
that pops out.  This is all usually fixed by restarting the backend.

I've recently tried to fix this by deleting all capture cards (two 
hauppauge Nova-T usb sticks) and recreating them, and deleting all 
channels and doing a full rescan, but too no avail.
Result of mythfrontend --version

*Please include all output in bug reports.
MythTV Version   : 24158
MythTV Branch    : branches/release-0-23-fixes
Network Protocol : 56
Library API      : 0.23.20100314-1
QT Version       : 4.6.2
Options compiled in:
  linux debug using_oss using_alsa using_pulse using_jack 
using_pulseoutput using_backend using_dvb using_firewire using_frontend 
using_glx_proc_addr_arb using_hdhomerun using_hdpvr using_iptv 
using_ivtv using_joystick_menu using_libudev using_lirc using_mheg 
using_opengl_video using_opengl_vsync using_qtdbus using_qtwebkit 
using_v4l using_x11 using_xrandr using_xv using_xvmc using_xvmc_vld 
using_xvmcw using_bindings_perl using_bindings_python using_opengl 
using_vdpau using_ffmpeg_threads using_libavc_5_3 using_live using_mheg
*

Any ideas greatly appreciated....

Paul.


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