[mythtv-commits] Ticket #12988: Auto-expire doesn't delete then loops and retries every time (endless log loop)

[MythTV]

#12988: Auto-expire doesn't delete then loops and retries every time (endless log
loop)
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     Reporter:  stevenable@…          |      Owner:  wagnerrp
         Type:  Bug Report - General  |     Status:  new
     Priority:  minor                 |  Milestone:  unknown
    Component:  MythTV - Housekeeper  |    Version:  0.27.6
     Severity:  low                   |   Keywords:  autoexpire, log loop
Ticket locked:  0                     |
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 When mythbackend fails to remove an autoexpired recording, it logs the
 condition but then tries again every time (approx 15min).  Either it
 should remove the entry from the database or flag it as attempted/failed.

 I took a look at my mythbackend log and found many copies containing the
 following (only showing a few lines):
 {{{
 Feb  5 12:49:00 host mythbackend: mythbackend[3302]: N Expire
 autoexpire.cpp:641 (SendDeleteMessages)
 Expiring 2606 MB for 1021 at 2016-07-22T22:33:18Z => "NBC Nightly News
 With Lester Holt"
 Feb  5 12:49:00 host mythbackend: mythbackend[3302]: N Expire
 autoexpire.cpp:641 (SendDeleteMessages)
 Expiring 2811 MB for 1061 at 2016-09-23T21:59:45Z => "News 6 at 6:00p"
 Feb  5 12:49:00 host mythbackend: mythbackend[3302]: N Expire
 autoexpire.cpp:641 (SendDeleteMessages)
 Expiring 2808 MB for 1061 at 2016-09-23T22:30:00Z => "CBS Evening News
 With Scott Pelley"
 Feb  5 12:49:00 host mythbackend: mythbackend[3302]: E CoreContext
 programinfo.cpp:2358 (GetPlaybackURL)
 ProgramInfo(1061_20160722223034.mpg): GetPlaybackURL:
 '1061_20160722223034.mpg' should be local, but it can not be found.
 Feb  5 12:49:00 host mythbackend: mythbackend[3302]: E CoreContext
 mainserver.cpp:2698 (DoHandleDeleteRecording) ERROR when trying to delete
 file:
 GetPlaybackURL/UNABLE/TO/FIND/LOCAL/FILE/ON/host/1061_20160722223034.mpg.
 File doesn't exist.  Database metadata will not be removed.
 Feb  5 12:49:00 host mythbackend: mythbackend[3302]: E CoreContext
 programinfo.cpp:2358 (GetPlaybackURL)
 ProgramInfo(1021_20160722223318.mpg): GetPlaybackURL:
 '1021_20160722223318.mpg' should be local, but it can not be found.
 }}}

 From the dates you can see these recordings go back to 2016 and as best I
 can tell, this has been logging and failing since that time.  The issue
 appears to be that by failing to remove database metadata, it shows up for
 autoexpire to consider again every 15 minutes.  I don't know how the
 original shows got deleted without backend knowing; that isn't my concern
 here.  Rather just seems that if the file does not exist, then removing
 metadata is desired.  (I don't know the conditions under which retaining
 it is desired so care should be taken.)

 This is certainly a minor problem, not causing issues other than slowly
 filling up my disk; and with a long enough list it may affect overall
 processing (not sure if it has throttle to skip if busy).  I also
 apologize if this is duplicate; i searched but didn't find any other
 tickets that referenced this. I might try and investigate it myself if i
 have time but figured I'd submit it.

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Ticket URL: <https://code.mythtv.org/trac/ticket/12988>
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