[mythtv-users] Make mythbackend shutdown quicker when frontends disconnect uncleanly

[Andrew Wilkinson]

Hi,

I have a Raspberry Pi as a remote frontend which is powered on and off with the TV. This means it doesn’t disconnect cleanly, it is just abruptly terminated. I have a read-only SD card, so I’m not worried about the Pi, but it does have the unfortunate side effect of making the backend stay awake for 2.5 hours after the TV is turned off. If the backend turns on to record it shuts down two minutes after the recording finishes.

I’ve included some of the logs from the backend below. You can see the frontend pitv is turned on at 12:08, and the Monitor socket is disconnected at 12:41 when the Pi is turned off. The Playback socket doesn’t disconnect until 14:36. Is there a way to reduce the timeout on this socket so the disconnected frontend is detected more quickly, and the backend will shutdown?

Oct 13 12:08:37 tv mythbackend: mythbackend[1255]: I ProcessRequest mainserver.cpp:1735 (HandleAnnounce) MainServer: adding: pitv(1f0e370) as a client (events: 0)
Oct 13 12:08:37 tv mythbackend: mythbackend[1255]: I ProcessRequest backendcontext.cpp:68 (SetFrontendConnected) BackendContext: Frontend 'pitv' connected.
Oct 13 12:08:37 tv mythbackend: mythbackend[1255]: I ProcessRequest mainserver.cpp:1735 (HandleAnnounce) MainServer: adding: pitv(1e38a70) as a client (events: 1)
Oct 13 12:10:30 tv mythbackend: mythbackend[1255]: I ProcessRequest mainserver.cpp:1735 (HandleAnnounce) MainServer: adding: pitv(1df1920) as a client (events: 0)
Oct 13 12:18:02 tv mythbackend: mythbackend[1255]: I MythSocketThread(87) mainserver.cpp:7656 (connectionClosed) Playback sock(1df1920) 'pitv' disconnected
Oct 13 12:18:12 tv mythbackend: mythbackend[1255]: I ProcessRequest mainserver.cpp:1735 (HandleAnnounce) MainServer: adding: pitv(1ef2d70) as a client (events: 0)
Oct 13 12:41:12 tv mythbackend: mythbackend[1255]: I MythSocketThread(62) mainserver.cpp:7656 (connectionClosed) Monitor sock(1e38a70) 'pitv' disconnected
Oct 13 14:36:36 tv mythbackend: mythbackend[1255]: I MythSocketThread(87) mainserver.cpp:7656 (connectionClosed) Playback sock(1ef2d70) 'pitv' disconnected
Oct 13 14:36:38 tv mythbackend: mythbackend[1255]: I MythSocketThread(52) backendcontext.cpp:102 (SetFrontendDisconnected) BackendContext: Frontend 'pitv' disconnected.
Oct 13 14:36:38 tv mythbackend: mythbackend[1255]: I MythSocketThread(52) mainserver.cpp:7656 (connectionClosed) Playback sock(1f0e370) 'pitv' disconnected
Oct 13 14:36:44 tv mythbackend: mythbackend[1255]: N Scheduler scheduler.cpp:2985 (HandleIdleShutdown) I'm idle now... shutdown will occur in 120 seconds.

Many thanks,
Andrew