[mythtv-commits] Ticket #10430: 0.25 Can't Handle Multiple Simultaneous Recordings
MythTV
noreply at mythtv.org
Sat Mar 10 16:24:29 UTC 2012
#10430: 0.25 Can't Handle Multiple Simultaneous Recordings
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Reporter: Scott <snharris99@…> | Type: Bug Report -
Status: new | General
Milestone: unknown | Priority: blocker
Version: Master Head | Component: MythTV - General
Keywords: | Severity: high
| Ticket locked: 0
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When trying to record more than one program at once via HdHomeRun units,
the recordings become increasingly unwatchable with each additional
simultaneous recording. For example, one recording is perfect, two
recordings can be watched but the corruption is annoying, three and four
recordings are unwatchable and the recording may even fail or not be
playable at all.
The recordings have frequent periods of extreme artifacting and the audio
becomes a metallic "buzz". Once two simultaneous recordings is surpassed,
recordings may even start to fail completely or playback will not work.
This behavior is consistent (happens every single time) in all 0.25 setups
I have tried; a single FE/BE laptop test environment with a fresh install
of Mythbuntu 11.10 using Mythbuntu 0.25 repos. Also in a production setup
(2 BEs, 4 FEs) on Mythbuntu 10.04 upgraded to from 0.24 to 0.25 via
Mythbuntu 0.25 repos.
The behavior is not present when trying similar tests with 0.24.x on any
of these setups. On the production setup I can record up to 8 recordings
at once with 4 commercial detection jobs going and the recordings are
nearly flawless.
Specs for the laptop:
Dual core Pentium
4GB memory
single SSD hard drive for OS, DB, recordings, etc
Spec for production BE:
Core2 Dual
6GB memory
1 individual SATA drive for OS
5 individual SATA drives for recordings
1 individual SSD drive for DB
Myth scheduler set to "combination"
The production setup has since be rolled back to 0.24.x due to the
inability to record more than one show at a time, however current version
of mythbackend for the laptop is attached.
I am not sure what logs or logging options (or with the changes to logging
in 0.25, how to grab them) would help, but I am quite happy to run with
any options requested and post any output requested to help.
--
Ticket URL: <http://code.mythtv.org/trac/ticket/10430>
MythTV <http://code.mythtv.org/trac>
MythTV Media Center
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