[mythtv-users] unexpected behaviour

Sun Nov 4 01:21:19 UTC 2018

On Sat, 2018-11-03 at 13:21 -0400, Daryl McDonald wrote:
> On Sat, Nov 3, 2018, 9:00 AM Daryl McDonald <darylangela at gmail.com
> wrote:
> > On Fri, Nov 2, 2018, 9:05 PM George Bingham <georgeb1962 at gmail.com>
> > wrote:
> > > -- George
> > > 
> > > 
> > > On Fri, Nov 2, 2018 at 4:07 PM Daryl McDonald <
> > > darylangela at gmail.com> wrote:
> > > > On Fri, Nov 2, 2018, 9:36 AM glen <glenb at glenb.us wrote:
> > > > > On Fri, 2018-11-02 at 09:11 -0400, Daryl McDonald wrote:
> > > > > > On Thu, Nov 1, 2018, 10:26 PM Stephen Worthington <
> > > > > > stephen_agent at jsw.gen.nz> wrote:
> > > > > > > On Thu, 1 Nov 2018 11:11:23 -0400, you wrote:
> > > > > > > 
> > > > > > > 
> > > > > > > 
> > > > > > > >Greetings mythizens, I got 0-byte recordings for three
> > > > > > > shows airing between
> > > > > > > 
> > > > > > > >10 &11 pm last night.
> > > > > > > 
> > > > > > > >This was co-incident with me switching over to Kodi, and
> > > > > > > starting my VPN,
> > > > > > > 
> > > > > > > >and streaming a show I had missed, I can wrap my head
> > > > > > > around losing the
> > > > > > > 
> > > > > > > >hdhr (network tuner) recording but the other two were on
> > > > > > > internal tuner
> > > > > > > 
> > > > > > > >cards. Is this normal behaviour?
> > > > > > > 
> > > > > > > >
> > > > > > > 
> > > > > > > >Does any one else using Myth and Kodi on the same box
> > > > > > > have suggestions?
> > > > > > > 
> > > > > > > >
> > > > > > > 
> > > > > > > >TIA  Daryl
> > > > > > > 
> > > > > > > 
> > > > > > > 
> > > > > > > MythTV uses tuners in order, and does not ever try
> > > > > > > another tuner when
> > > > > > > 
> > > > > > > one fails.  So if the first tuner is a network one and
> > > > > > > you have
> > > > > > > 
> > > > > > > somehow screwed up the network access to the tuner, then
> > > > > > > that could
> > > > > > > 
> > > > > > > explain what happened.  When you say the other two
> > > > > > > recordings were on
> > > > > > > 
> > > > > > > internal tuner cards, how are you working out what card
> > > > > > > was used for
> > > > > > > 
> > > > > > > the recordings?  Were the recordings from a different
> > > > > > > source that
> > > > > > > 
> > > > > > > needed to use the internal cards?  When you get a failed
> > > > > > > recording,
> > > > > > > 
> > > > > > > you can find the tuner it attempted to use in the logs,
> > > > > > > or you can go
> > > > > > > 
> > > > > > > to the recording and use the I command twice (and then
> > > > > > > scroll down if
> > > > > > > 
> > > > > > > necessary) to see the tuner.
> > > > > > > 
> > > > > > > 
> > > > > > > 
> > > > > > > How do you use a VPN?  If it is run from the MythTV box
> > > > > > > then it is
> > > > > > > 
> > > > > > > likely that setting up the VPN connection will have
> > > > > > > changed the
> > > > > > > 
> > > > > > > routing on the MythTV box in a way that prevented access
> > > > > > > to the HDHR
> > > > > > > 
> > > > > > > tuner.  The standard way the VPNs work is to divert all
> > > > > > > traffic
> > > > > > > 
> > > > > > > outside the box to the VPN connection.  Often you can set
> > > > > > > them up so
> > > > > > > 
> > > > > > > that local traffic on your network will not go via the
> > > > > > > VPN, but you
> > > > > > > 
> > > > > > > will have to do extra configuration to do that.
> > > > > > > 
> > > > > > > 
> > > > > > > 
> > > > > > > Another consideration is if you have storage group
> > > > > > > locations that are
> > > > > > > 
> > > > > > > stored over network connections to other boxes on your
> > > > > > > network. MythTV
> > > > > > > 
> > > > > > > has problems with network locations not being
> > > > > > > accessible.  If
> > > > > > > 
> > > > > > > activating your VPN caused network storage groups to be
> > > > > > > inaccessible,
> > > > > > > 
> > > > > > > but mythbackend kept trying to access them, that causes
> > > > > > > mythbackend to
> > > > > > > 
> > > > > > > run extremely slowly due to it continually locking up in
> > > > > > > a bit of code
> > > > > > > 
> > > > > > > that is trying the network connection and then failing.
> > > > > > > Each time the
> > > > > > > 
> > > > > > > connection fails, it can move on and do a little more
> > > > > > > work, but as
> > > > > > > 
> > > > > > > soon as it tries the connection again, it locks up
> > > > > > > again.  Only part
> > > > > > > 
> > > > > > > of mythbackend is affected, but that includes the threads
> > > > > > > that do
> > > > > > > 
> > > > > > > recordings, so all recordings fail.  As mythbackend tries
> > > > > > > to access
> > > > > > > 
> > > > > > > all storage groups in that code, it does not matter if
> > > > > > > the networked
> > > > > > > 
> > > > > > > storage group is only used for videos or pictures - it
> > > > > > > will still
> > > > > > > 
> > > > > > > cause access to the recording storage groups to fail.
> > > > > > > 
> > > > > > > _______________________________________________
> > > > > > > 
> > > > > > > mythtv-users mailing list
> > > > > > > 
> > > > > > > mythtv-users at mythtv.org
> > > > > > > 
> > > > > > > http://lists.mythtv.org/mailman/listinfo/mythtv-users
> > > > > > > 
> > > > > > > http://wiki.mythtv.org/Mailing_List_etiquette
> > > > > > > 
> > > > > > > MythTV Forums: https://forum.mythtv.org
> > > > > > 
> > > > > > My only network component is the HDHR, everything else in
> > > > > > in the combined FE/BE, internal cards have UDEV rules and
> > > > > > are used first, before the HDHR. Storage is three 1TB
> > > > > > drives, internal, one of which I just replaced (impending
> > > > > > failure) and curiously when I used Kodi it unmounted
> > > > > > storage2 of it's own volition at the time of the failure. I
> > > > > > doubt that all three failed recordings were going to the
> > > > > > one drive, as they were simotanious, just something else to
> > > > > > scratch the head with. VPN is on the myth/kodi box only and
> > > > > > engaged when needed through the unity bar.
> > > > > > 
> > > > > > _______________________________________________mythtv-users 
> > > > > > mailing listmythtv-users at mythtv.org
> > > > > > http://lists.mythtv.org/mailman/listinfo/mythtv-users
> > > > > > http://wiki.mythtv.org/Mailing_List_etiquette
> > > > > > MythTV Forums: https://forum.mythtv.org
> > > > > 
> > > > > why don't you test each tuner independent of myth. stop the
> > > > > backend and test the tuners to see they are receiving signal.
> > > > > with hdhomerun you can use the hdhomerun_config_gui util. and
> > > > > there are methods for the ones directly attached. if those
> > > > > work properly, take a look at your mythtv-setup and make sure
> > > > > the tuner setup is what you think and the storage directories
> > > > > are correct. then start the backend and test. on the storage
> > > > > verify the permissions are good for your storage directories.
> > > > > run mythtv-setup under user that is running backend
> > > > > 
> > > > > _______________________________________________
> > > > > 
> > > > > mythtv-users mailing list
> > > > > 
> > > > > mythtv-users at mythtv.org
> > > > > 
> > > > > http://lists.mythtv.org/mailman/listinfo/mythtv-users
> > > > > 
> > > > > http://wiki.mythtv.org/Mailing_List_etiquette
> > > > > 
> > > > > MythTV Forums: https://forum.mythtv.org
> > > 
> > > I have a similar issue from time to time. I have one card that
> > > has two tuners on it, but can do up to 3 recordings if two of
> > > them share a multiplex. This often  happens starting at 7:00
> > > where there will be three shows all starting at the same time.
> > > Often one of them would not tune within the tuning time out
> > > period and I am guessing that since it starts each recording
> > > nearly at the same time that there must be additional time
> > > allowed or something. Anyway, I now have one of the recordings
> > > set to start a minute early and since I made that change, it
> > > hasn't missed out on any recordings.
> > > Not sure if that's happening to you or not, but since it took
> > > place when you have multiple recordings starting at the same
> > > time, maybe stagger them a bit by starting one of them a minute
> > > early.
> > > HTH,
> > > George
> > > 
> > >  
> > > > this was a one time episode, all is working as expected now, I
> > > > think I will check the permissions though. 
> > > > 
> > > > _______________________________________________
> > > > 
> > > > mythtv-users mailing list
> > > > 
> > > > mythtv-users at mythtv.org
> > > > 
> > > > http://lists.mythtv.org/mailman/listinfo/mythtv-users
> > > > 
> > > > http://wiki.mythtv.org/Mailing_List_etiquette
> > > > 
> > > > MythTV Forums: https://forum.mythtv.org
> > > > 
> > > 
> > > _______________________________________________
> > > 
> > > mythtv-users mailing list
> > > 
> > > mythtv-users at mythtv.org
> > > 
> > > http://lists.mythtv.org/mailman/listinfo/mythtv-users
> > > 
> > > http://wiki.mythtv.org/Mailing_List_etiquette
> > > 
> > > MythTV Forums: https://forum.mythtv.org
> > 
> > Interesting to know George, but for years now I have recorded by SD
> > time, 3 or even 4 episodes at the same time without incident
> > 
> > I may have spoke to soon, it looks like my problems may be related
> > to the storage drive replacement. The last two news recordings have
> > been unwatchable, intermitten freeze-ups until inability to play at
> > all, while, a football recording made the same night a couple hours
> > later plays great. I'm going to use disks to check it out and am
> > open to suggestions for confirming if the new drive is a lemon or
> > not.   TIA  Daryl
> 
> Maybe its just a coincidence, because the file system on the new
> drive checks OK and smartmontools doesn't find any fault.? 
> 
> _______________________________________________mythtv-users mailing 
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are you using xfs ? if not change to xfs and test. 
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