[mythtv-commits] Ticket #13121: Sat>IP client support
MythTV
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Thu Apr 29 17:42:22 UTC 2021
#13121: Sat>IP client support
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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
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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>
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