Sound notifications go missing

[mommsen]

Hi,

this morning (2017-10-24 06:27:12), tracker FED 144 got stuck. The DAQExpert diagnosed it correctly and issued the audible alarm for 'NoRateWhenExpected' (SadThatItTurnedOutBad.wav) twice at 06:27:12 and 06:28:29. However, in CMS-WOW, this jingle never arrived:

Tue Oct 24 06:27:16 CEST 2017 -> play options file : added-complete.wav    text ''
Tue Oct 24 06:27:16 CEST 2017 : added-complete.wav does not exist, therefore I cannot play it.
Tue Oct 24 06:27:20 CEST 2017 -> play options file : added-complete.wav    text ''
Tue Oct 24 06:27:20 CEST 2017 : added-complete.wav does not exist, therefore I cannot play it.
Tue Oct 24 06:28:30 CEST 2017 : playing U2SingelBell.wav
Tue Oct 24 06:28:30 CEST 2017 -> play options file : U2SingelBell.wav    text ''
Tue Oct 24 06:28:32 CEST 2017 : playing U2SingelBell.wav
Tue Oct 24 06:28:32 CEST 2017 -> play options file : U2SingelBell.wav    text ''
Tue Oct 24 06:28:36 CEST 2017 -> play options file : added-complete.wav    text ''
Tue Oct 24 06:28:36 CEST 2017 : added-complete.wav does not exist, therefore I cannot play it.

Note that the interleaved 'End' audible (U2SingelBell.wav) was received by CMS-WOW. Also the default jingle is not known by WOW. I don't know if this in on purpose or not.

Unfortunately, the missing audio alarm caused ~15 minutes downtime as the shifter became only aware of the problem at 6:43.

[m-gl]

There is a bug in dominating event selection mechanism. Bottom line is that we can quickly fix it by simple configuration file update without deploying new version of NotificationManager. It will require a restart of the application.

In the meantime I will work on the bugfix that we can deploy with next release after I test it.

@mommsen the new configuration is ready, I'm ready to restart the NM. I will do it as soon as you give me GL.