[mythtv-commits] Ticket #4254: Wrong backend selected to stream LiveTV

[MythTV]

#4254: Wrong backend selected to stream LiveTV
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 Reporter:  keller  |       Owner:  ijr    
     Type:  defect  |      Status:  new    
 Priority:  minor   |   Milestone:  unknown
Component:  mythtv  |     Version:  head   
 Severity:  medium  |     Mlocked:  0      
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 Here's the situation.  Please tell me if my logic is wrong on this.  This
 is all running almost-newest SVN.

 Two backends:
 Master - RAID 5 Storage.  Default and LiveTV Storage Groups point to the
 local directories.  Both directories are shared via NFS.
 Slave - Tuners, no local storage.  Master shares mounted via NFS.  Default
 and LiveTV Storage Groups point to the NFS mounts.

 Master Backend Override is on.  ALL file reads should come from the
 Master.

 My frontend is connected to the master backend.  When I go to watch
 LiveTV, the slave begins recording to the correct directory (NFS share
 that points to Master).  The frontend, however, begins streaming from the
 slave backend.  The file is available on the Master backend, but it
 streams from the slave instead.  This causes triple TV traffic on the
 network:

 One trip from slave to master storage via NFS
 Second trip from master storage to slave via NFS
 Third trip from slave to frontend via mythtv protocol

 If Master Backend Override is enabled, shouldn't the master backend check
 to see if the LiveTV file is local, and then stream it to the frontend?

 Also note that once the program is not being recorded, it can be streamed
 from the Master backend correctly.  This also goes for previously-recorded
 programs.  It's JUST LiveTV that displays this behavior.

 Please let me know if my logic is off.  If this should be a patch, let me
 know and I'll see what I can cook up.

 -Keller

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Ticket URL: <http://svn.mythtv.org/trac/ticket/4254>
MythTV <http://svn.mythtv.org/trac>
MythTV