[mythtv-commits] Ticket #13121: Sat>IP client support

[MythTV]

#13121: Sat>IP client support
--------------------------------+-------------------------------
 Reporter:  cg@…                |          Owner:  Klaas de Waal
     Type:  Patch - Feature     |         Status:  assigned
 Priority:  minor               |      Milestone:  32.0
Component:  MythTV - Recording  |        Version:  Master Head
 Severity:  low                 |     Resolution:
 Keywords:                      |  Ticket locked:  0
--------------------------------+-------------------------------

Comment (by Klaas de Waal):

 Sat>IP fails repeatable with the following sequence:
 - recording in progress, starting at 05:00 and scheduled to end at 06:00
 - nightly database backup starts at 05:30
 - the recording ends as "Bad quality" with a gap starting at 05:32 and
 ending at 06:00
 - the continuity_error_count is 0 so the recording from 05:00 to 05:32 is
 perfect
 After the recording has failed the RTP communication path is completely
 dead. The RTCP communication seems to be still working. A restart of the
 backend is enough to make it working again; the Sat>IP box does not need
 to be reset or rebooted.
 Current hypothesis is:
 - the database backup causes the Sat>IP to fail
 - possible causes can be CPU starvation, disk I/O starvation or database
 locking
 - the actual problem is likely to be in the RTP part.
 As a workaround I recommend to avoid scheduling recordings together with
 database backups or even any other kind of backups or heavy CPU load.

-- 
Ticket URL: <https://code.mythtv.org/trac/ticket/13121#comment:63>
MythTV <http://www.mythtv.org>
MythTV Media Center