[mythtv-users] Live TV problem

[Jean-Yves Avenard]

On 15 December 2014 at 05:04, Saul <jaglover at gmail.com> wrote:
> On Sat, 13 Dec 2014 20:36:03 -0800
> Mike Carron <jmcarron at starstream.net> wrote:
>
>> I'm having a problem with random stalls in live tv. The MBE is
>> running Mythbuntu 14.04.1/0.27.4 and the FE is running Mythbuntu
>> 12.04.5/0.27.4. There is adequate storage and both livetv storage and
>> the mythconverg database are on separate SSDs.
>>
>> This is the backend log at the time of a stall:
>>
>>     Dec 13 17:52:54 12000mvd-mbe mythbackend: mythbackend[7520]: N
>>     Expire autoexpire.cpp:641 (SendDeleteMessages) Expiring 0 MB for
>>     1731 at 2014-12-14T01:51:38Z => "2014 Heisman Trophy Presentation"
>>
>>     Dec 13 17:54:53 12000mvd-mbe mythbackend: mythbackend[7520]: W
>>     ProcessRequest ringbuffer.cpp:1100 (WaitForReadsAllowed)
>>     RingBuf(/var/lib/mythtv/livetv/1731_20141214015139.mpg): Taking
>> too long to be allowed to read..
>
> I have same problem, please see
> https://code.mythtv.org/trac/ticket/12295

without backend log, your report is incomplete.

Here, you have the backend tacking a very long time to write to disk.
As such, the frontend or backend can't read that recording (it hasn't
been written to disk yet) and so things are stalling.

Too slow computer or failing / broken hard disk is the most likely
cause of the problem