[mythtv-users] Myth autoexpiring brand new shows

Tue Aug 26 04:16:42 UTC 2008

On Mon, Aug 25, 2008 at 5:46 PM, Enigma <enigma at thedonnerparty.com> wrote:

> Longtime Myth user, I have a 3 frontend/ 1 FE-BE/ 1 backend Myth 0.21
> network.  I have ~1.4 TB of storage, on 4 separate mount points:
>
>
>    - MythTV Drive #1:
>     - Directories: burns:/home/share/MYTH/db_backups,
>       burns:/home/share/video, coilette:/home/share/video
>       - Total Space: 1,102,486 MB
>       - Space Used: 1,077,288 MB
>       - Space Free: 25,197 MB
>    - MythTV Drive #2:
>     - Directory: burns:/mnt/disk1
>       - Total Space: 187,785 MB
>       - Space Used: 162,972 MB
>       - Space Free: 24,812 MB
>    - MythTV Drive #3:
>     - Directory: burns:/mnt/disk2
>       - Total Space: 20,399 MB
>       - Space Used: 379 MB
>       - Space Free: 20,019 MB
>    - MythTV Drive #4:
>     - Directory: burns:/mnt/disk3
>       - Total Space: 183,933 MB
>       - Space Used: 153,203 MB
>       - Space Free: 30,730 MB
>    - Total Disk Space:
>       - Total Space: 1,494,604 MB
>       - Space Used: 1,393,844 MB
>       - Space Free: 100,759 MB
>
>
> Drive #3 is configured as a LiveTV drive, the rest are all in the default
> storage group.
>
> Today, I have a very irate and panicky roommate who has just discovered
> that the NASCAR race from last weekend has already been deleted.  Checking
> the system, I notice that all the NASCAR races have been deleted.  Upon
> checking the logs, I discovered that MythTV had autoexpired them, along with
> many other recordings that had very recently been made.  Checking the
> autoexpire list, there are hundreds of items that are available to be
> expired that are much older than the items that were expired.  For an
> example of the logfile when expiring:
>
> 2008-08-25 05:06:24.954 Scheduled 789 items in 14.3 = 0.00 match + 14.31
> place
> 2008-08-25 05:15:50.998 AutoExpire: CalcParams(): Max required Free Space:
> 22.0 GB w/freq: 10 min
> 2008-08-25 05:15:51.579 Expiring 1320 MBytes for 4849 @ Sat Aug 23 14:00:00
> 2008 => Mega Disasters "Dam Break"
> 2008-08-25 05:15:51.670 Reschedule requested for id 0.
> 2008-08-25 05:16:14.024 Scheduled 789 items in 22.3 = 0.00 match + 22.29
> place
> 2008-08-25 05:16:14.032 Reschedule requested for id 0.
> 2008-08-25 05:16:31.271 Scheduled 789 items in 17.2 = 0.00 match + 17.18
> place
> 2008-08-25 05:21:26.398 UPnpMedia: BuildMediaMap - no VideoStartupDir set,
> skipping scan.
> 2008-08-25 05:25:52.104 AutoExpire: CalcParams(): Max required Free Space:
> 22.0 GB w/freq: 10 min
> 2008-08-25 05:25:52.727 Expiring 1455 MBytes for 4849 @ Sat Aug 23 15:00:00
> 2008 => Modern Marvels "Wheat"
> 2008-08-25 05:25:52.864 Reschedule requested for id 0.
> 2008-08-25 05:26:14.276 Scheduled 789 items in 21.4 = 0.00 match + 21.37
> place
> 2008-08-25 05:26:14.311 Reschedule requested for id 0.
> 2008-08-25 05:26:31.055 Scheduled 789 items in 16.7 = 0.00 match + 16.70
> place
> 2008-08-25 05:35:53.233 AutoExpire: CalcParams(): Max required Free Space:
> 22.0 GB w/freq: 10 min
> 2008-08-25 05:45:54.281 AutoExpire: CalcParams(): Max required Free Space:
> 22.0 GB w/freq: 10 min
> 2008-08-25 05:45:54.824 Expiring 1481 MBytes for 4849 @ Sat Aug 23 16:00:00
> 2008 => Modern Marvels "Coin Operated"
> 2008-08-25 05:45:55.004 Reschedule requested for id 0.
> 2008-08-25 05:46:15.576 Scheduled 789 items in 20.5 = 0.00 match + 20.50
> place
> 2008-08-25 05:46:15.584 Reschedule requested for id 0.
> 2008-08-25 05:46:31.863 Scheduled 789 items in 16.2 = 0.00 match + 16.22
> place
> 2008-08-25 05:51:31.447 UPnpMedia: BuildMediaMap - no VideoStartupDir set,
> skipping scan.
> 2008-08-25 05:55:55.336 AutoExpire: CalcParams(): Max required Free Space:
> 22.0 GB w/freq: 10 min
> 2008-08-25 05:55:55.891 Expiring 3135 MBytes for 1051 @ Sat Aug 23 17:00:00
> 2008 => NASCAR Countdown
> 2008-08-25 05:55:55.994 Reschedule requested for id 0.
> 2008-08-25 05:56:20.219 Scheduled 789 items in 24.2 = 0.00 match + 24.16
> place
> 2008-08-25 05:56:20.228 Reschedule requested for id 0.
> 2008-08-25 05:56:36.972 Scheduled 789 items in 16.7 = 0.00 match + 16.67
> place
>
>
> As you can see, Myth is autoexpiring programs that were recorded just 2
> days earlier.
>
>
> So my questions are:
>
> #1 Is there any way to determine why these programs were autoexpired
> earlier than hundreds of other eligible programs? (like 550 GB of Olympics?)
>
> #2 How the hell can I keep it from happening again?
>

I think a good question to answer is why, within the space of 30 minutes, is
enough disk space being taken up on that drive that you are bumping against
the 22GB reserve 4 times (roughly once every ten minutes).  MythTV will show
you what it is considering for auto-expiration and in what order on the
System Status screen in the Frontend.  This can be age, priority, or other
combinations.  But obviously something is consuming the disk space so Myth
does what it is told and makes space available.

Also, if you don't want stuff to expire, don't mark it for expiration.

Kevin
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