Mopidy: Sorting in ncmpcpp working very slow and unstable (may be only with Spotify backend)

Created on 24 Feb 2016 · 18Comments · Source: mopidy/mopidy

steps to reproduce:
0) open ncmpcpp
1) add few hundreds songs from spotify to main playlist
2) sort main playlist (Ctrl+S)

Mopidy responds slower and after some time throws the exception:

ERROR    Unhandled exception in MpdFrontend (urn:uuid:9b5696c9-0261-4eea-8132-f43b1017f286):
Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/pykka/actor.py", line 200, in _actor_loop
    response = self._handle_receive(message)
  File "/usr/lib/python2.7/site-packages/pykka/actor.py", line 294, in _handle_receive
    return callee(*message['args'], **message['kwargs'])
  File "/usr/lib/python2.7/site-packages/mopidy/mpd/actor.py", line 84, in on_event
    self.send_idle(_CORE_EVENTS_TO_IDLE_SUBSYSTEMS[event])
  File "/usr/lib/python2.7/site-packages/mopidy/mpd/actor.py", line 88, in send_idle
    listener.send(session.MpdSession, subsystem)
  File "/usr/lib/python2.7/site-packages/mopidy/listener.py", line 27, in send
    'kwargs': kwargs,
  File "/usr/lib/python2.7/site-packages/pykka/actor.py", line 437, in tell
    raise _ActorDeadError('%s not found' % self)
ActorDeadError: MpdSession (urn:uuid:4c427b21-ab0b-426d-b795-efb9afb46db0) not found

UPD: forgot to mention what i am using release 2.0.0

C-bug

Source

actionless

Most helpful comment

I got the same error without spotify tracks.
(https://gist.github.com/makkanx/28c5ac01eac3e62039c8f2792e8f267e)
I have the complete logfile incase needed.
This playlist has 1465 tracks.

makkanx on 27 Feb 2019

👍2

All 18 comments

What is mb?

kingosticks on 24 Feb 2016

may be

actionless on 24 Feb 2016

ActorDeadError is just telling us that something killed that thread previously. Do you happen to have any errors or the like earlier in the logs?

adamcik on 25 Feb 2016

@adamcik: I can easily reproduce this. It doesn't say anything earlier in the log.

trygveaa on 25 Feb 2016

I can't seem to easily reproduce this.

adamcik on 27 Jul 2016

since DBus in spotify is fixed already i am not more using mopidy so feel free to close this

actionless on 28 Jul 2016

Closing as there's nothing to go on here and the original poster has moved on.

jodal on 7 Aug 2016

I can still reproduce this consistently, however only on one of my machines. It also happens randomly from time to time on that machine.

Do you have any suggestions on how to debug this?

trygveaa on 31 Aug 2016

Any news on this issue? I keep getting it many times every day.

makkanx on 27 Feb 2019

If you can easily and reliably reproduce it then a debug log showing the exact chain of events that causes this. And your mopidy deps output. And can you determine if it is only when the playlist contains Spotify tracks, that was never made clear in the original report.

kingosticks on 27 Feb 2019

And can you determine if it is only when the playlist contains Spotify tracks, that was never made clear in the original report.

yeah, it was only with Spotify, never with local tracks

actionless on 27 Feb 2019

I'm running with save-debug-log right now. My current playlist has both local and spotify tracks and a total of 1568 tracks.

makkanx on 27 Feb 2019

Here is a link to debug log, deps and config.
(https://gist.github.com/makkanx/244277b5c4cd67d8a587a99399a6be07)
Let me know if you need more of the logfile.
I will try with a large playlist without any spotify tracks.

makkanx on 27 Feb 2019

I got the same error without spotify tracks.
(https://gist.github.com/makkanx/28c5ac01eac3e62039c8f2792e8f267e)
I have the complete logfile incase needed.
This playlist has 1465 tracks.

makkanx on 27 Feb 2019

👍2

The OP was confident this was only with Spotify tracks so is this actually the same issue?

Is your issue still something to do with sorting? I don't see any reordering MPD commands in those logs. There's not much of anything going on. Did nothing happen before the snippet you provided? It might be better to provide the entire log. And to disable all extensions except local.

kingosticks on 15 Mar 2019

Mine happens even if I don't sort.

makkanx on 15 Mar 2019

OK so doesn't sound like same issue as the OP. And not necessarily the same as #1750. Can you provide steps for us to reproduce and a full debug log in a new issue. Reusing this one will just be confusing.

kingosticks on 15 Mar 2019

It is difficult to reproduce but it happens quite often if I have Spotify songs. Right now I'm running with only m3u, files and mpd enabled to see if it happens then.

makkanx on 15 Mar 2019

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