[mythtv-commits] Ticket #12612: New installs die after a few days fixes/0.27 (v0.27 (v0.27.5-71-ga62fc0d)

[MythTV]

#12612: New installs die after a few days fixes/0.27 (v0.27 (v0.27.5-71-ga62fc0d)
----------------------------------+--------------------------------
 Reporter:  singogli@…            |          Owner:
     Type:  Bug Report - General  |         Status:  infoneeded_new
 Priority:  minor                 |      Milestone:  unknown
Component:  MythTV - General      |        Version:  0.27.5
 Severity:  medium                |     Resolution:
 Keywords:                        |  Ticket locked:  0
----------------------------------+--------------------------------
Changes (by mdean):

 * priority:  critical => minor
 * status:  new => infoneeded_new


Old description:

> New installs die after a few days ruuning fixes/0.27 (v0.27
> (v0.27.5-71-ga62fc0d) with all updates per ticket #12611. System built on
> January 18th works correctly until January 21st.  Symptom is- after
> scheduling and recording over days suddenly Media Library-Watch
> Recordings  shows no recordings available.  Backend log shows backend is
> continuing to record previously scheduled programs.  Only backend error
> message around that time is:
>
> Jan 21 13:47:00 mythbuntu64-2 mythbackend: mythbackend[2315]: E
> MythSocketThread(73) mythsocket.cpp:745 (WriteStringListReal)
> MythSocket(2603380:-1): WriteStringList: Error, called with unconnected
> socket
>
> Frontend errors around that time are:
>
> Jan 21 13:45:38 mythbuntu64-2 mythfrontend.real: mythfrontend[2359]: E
> ProgramInfoLoader remoteutil.cpp:184 (RemoteGetRecordingList)
> RemoteGetRecordingList() list size appears to be incorrect.
>
> Jan 21 13:45:39 mythbuntu64-2 mythfrontend.real: mythfrontend[2359]: W
> CoreContext playbackbox.cpp:1800 (UpdateUILists) PlaybackBox: SortedList
> is Empty
>
> Memory usage seems high:
>
> USER       PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND
> steve     2359  2.9  6.0 5797776 491308 ?      Sl   13:45  12:31
> /usr/bin/mythfrontend.real --syslog local7
> mythtv    4171 24.2  0.9 1131292 75680 ?       SNl  20:05   9:43
> /usr/bin/mythcommflag -j 102 --noprogress --verbose general --loglevel
> info --quiet --syslog local7
> root      1362  0.0  0.8 336112 73416 tty7     Ssl+ 13:43   0:09
> /usr/bin/X -core :0 -seat seat0 -auth /var/run/lightdm/root/:0 -nolisten
> tcp vt7 -novtswitch
> mythtv    2315  4.8  0.8 4379796 68420 ?       Ssl  13:44  20:28
> /usr/bin/mythbackend --syslog local7 --user mythtv --daemon
> mysql     1187  0.2  0.6 1879336 50588 ?       Ssl  13:43   0:51
> /usr/sbin/mysqld
>
> Livetv continues to work fine.
>
> A remote frontend running an earlier version connects to this backend and
> also shows an empty media library.
>
> This symptom has occurred on multiple install attempts on different
> hardware with various tuners.

New description:

 New installs die after a few days ruuning fixes/0.27 (v0.27
 (v0.27.5-71-ga62fc0d) with all updates per ticket #12611. System built on
 January 18th works correctly until January 21st.  Symptom is- after
 scheduling and recording over days suddenly Media Library-Watch Recordings
 shows no recordings available.  Backend log shows backend is continuing to
 record previously scheduled programs.  Only backend error message around
 that time is:
 {{{
 Jan 21 13:47:00 mythbuntu64-2 mythbackend: mythbackend[2315]: E
 MythSocketThread(73) mythsocket.cpp:745 (WriteStringListReal)
 MythSocket(2603380:-1): WriteStringList: Error, called with unconnected
 socket
 }}}
 Frontend errors around that time are:
 {{{
 Jan 21 13:45:38 mythbuntu64-2 mythfrontend.real: mythfrontend[2359]: E
 ProgramInfoLoader remoteutil.cpp:184 (RemoteGetRecordingList)
 RemoteGetRecordingList() list size appears to be incorrect.

 Jan 21 13:45:39 mythbuntu64-2 mythfrontend.real: mythfrontend[2359]: W
 CoreContext playbackbox.cpp:1800 (UpdateUILists) PlaybackBox: SortedList
 is Empty
 }}}
 Memory usage seems high:
 {{{
 USER       PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND
 steve     2359  2.9  6.0 5797776 491308 ?      Sl   13:45  12:31
 /usr/bin/mythfrontend.real --syslog local7
 mythtv    4171 24.2  0.9 1131292 75680 ?       SNl  20:05   9:43
 /usr/bin/mythcommflag -j 102 --noprogress --verbose general --loglevel
 info --quiet --syslog local7
 root      1362  0.0  0.8 336112 73416 tty7     Ssl+ 13:43   0:09
 /usr/bin/X -core :0 -seat seat0 -auth /var/run/lightdm/root/:0 -nolisten
 tcp vt7 -novtswitch
 mythtv    2315  4.8  0.8 4379796 68420 ?       Ssl  13:44  20:28
 /usr/bin/mythbackend --syslog local7 --user mythtv --daemon
 mysql     1187  0.2  0.6 1879336 50588 ?       Ssl  13:43   0:51
 /usr/sbin/mysqld
 }}}
 Livetv continues to work fine.

 A remote frontend running an earlier version connects to this backend and
 also shows an empty media library.

 This symptom has occurred on multiple install attempts on different
 hardware with various tuners.

--

Comment:

 [Reset ticket defaults and fixed formatting]

 Almost definitely one or more null characters in data for one or more
 channels or in program data for one or more recordings.  See http://www
 .gossamer-threads.com/lists/mythtv/users/562355#562355 and http://www
 .gossamer-threads.com/lists/mythtv/users/562373#562373 and http://www
 .gossamer-threads.com/lists/mythtv/users/562405#562405 .

 While this is uncommon, to prevent issues due to bad (or just plain nasty)
 data from broadcasters and listings suppliers, we'd need to scrub any
 channel data discovered in channel scans or "Fetch channels from listings
 provider" downloads, as well as data from EIT and data downloaded from
 listings providers and remove--at minimum--any null bytes.

 Please inspect your data in your database and see if you can identify any
 null bytes.  Also, please attach full log files showing the errors you get
 when entering Watch Recordings.  See
 https://www.mythtv.org/wiki/Posting_Logs

--
Ticket URL: <https://code.mythtv.org/trac/ticket/12612#comment:1>
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