[Solved] MPD: No Database; Failed to bind socket: Address already in

Zhme · 2020-01-27 19:57:41

I got my ncmpcpp to work last night for the first time. Today I tried to go through the same battery of fixes to run it again but haven't been able to get it working. At first, I thought it was a configuration issue, but after trying to load mpd with different configurations, I think the issue might be with the way I am using the services and/or socket.

/home/zhme/.config/mpd/mpd.conf

# An example configuration file for MPD.
# Read the user manual for documentation: http://www.musicpd.org/doc/user/


# Files and directories #######################################################
#
# This setting controls the top directory which MPD will search to discover the
# available audio files and add them to the daemon's online database. This 
# setting defaults to the XDG directory, otherwise the music directory will be
# be disabled and audio files will only be accepted over ipc socket (using
# file:// protocol) or streaming files over an accepted protocol.
#
music_directory		"/home/zhme/Music"
#
# This setting sets the MPD internal playlist directory. The purpose of this
# directory is storage for playlists created by MPD. The server will use 
# playlist files not created by the server but only if they are in the MPD
# format. This setting defaults to playlist saving being disabled.
#
playlist_directory		"/home/zhme/.mpd/playlists"
#
# This setting sets the location of the MPD database. This file is used to
# load the database at server start up and store the database while the 
# server is not up. This setting defaults to disabled which will allow
# MPD to accept files over ipc socket (using file:// protocol) or streaming
# files over an accepted protocol.
#
db_file			"/home/zhme/.mpd/database"
# 
# These settings are the locations for the daemon log files for the daemon.
# These logs are great for troubleshooting, depending on your log_level
# settings.
#
# The special value "syslog" makes MPD use the local syslog daemon. This
# setting defaults to logging to syslog.
#
log_file			"/home/zhme/.mpd/log"
#
# This setting sets the location of the file which stores the process ID
# for use of mpd --kill and some init scripts. This setting is disabled by
# default and the pid file will not be stored.
#
pid_file			"/home/zhme/.mpd/pid"
#
# This setting sets the location of the file which contains information about
# most variables to get MPD back into the same general shape it was in before
# it was brought down. This setting is disabled by default and the server 
# state will be reset on server start up.
#
state_file			"/home/zhme/.mpd/state"
#
# The location of the sticker database.  This is a database which
# manages dynamic information attached to songs.
#
sticker_file			"/home/zhme/.mpd/sticker.sql"
#
###############################################################################


# General music daemon options ################################################
#
# This setting specifies the user that MPD will run as. MPD should never run as
# root and you may use this setting to make MPD change its user ID after
# initialization. This setting is disabled by default and MPD is run as the
# current user.
#
user				"zhme"
#
# This setting specifies the group that MPD will run as. If not specified
# primary group of user specified with "user" setting will be used (if set).
# This is useful if MPD needs to be a member of group such as "audio" to
# have permission to use sound card.
#
#group				"nogroup"
#
# This setting sets the address for the daemon to listen on. Careful attention
# should be paid if this is assigned to anything other then the default, any.
# This setting can deny access to control of the daemon. Not effective if
# systemd socket activiation is in use.
#
# For network
#bind_to_address		"any"
#
# And for Unix Socket
#bind_to_address		"~/.mpd/socket"
#
# This setting is the TCP port that is desired for the daemon to get assigned
# to.
#
port				"6600"
#
# This setting controls the type of information which is logged. Available 
# setting arguments are "default", "secure" or "verbose". The "verbose" setting
# argument is recommended for troubleshooting, though can quickly stretch
# available resources on limited hardware storage.
#
log_level			"verbose"
#
# Setting "restore_paused" to "yes" puts MPD into pause mode instead
# of starting playback after startup.
#
restore_paused "yes"
#
# This setting enables MPD to create playlists in a format usable by other
# music players.
#
#save_absolute_paths_in_playlists	"no"
#
# This setting defines a list of tag types that will be extracted during the
# audio file discovery process. The complete list of possible values can be
# found in the user manual.
#metadata_to_use	"artist,album,title,track,name,genre,date,composer,performer,disc"
#
# This example just enables the "comment" tag without disabling all
# the other supported tags:
#metadata_to_use "+comment"
#
# This setting enables automatic update of MPD's database when files in 
# music_directory are changed.
#
#auto_update	"yes"
#
# Limit the depth of the directories being watched, 0 means only watch
# the music directory itself.  There is no limit by default.
#
#auto_update_depth "3"
#
###############################################################################


# Symbolic link behavior ######################################################
#
# If this setting is set to "yes", MPD will discover audio files by following 
# symbolic links outside of the configured music_directory.
#
#follow_outside_symlinks	"yes"
#
# If this setting is set to "yes", MPD will discover audio files by following
# symbolic links inside of the configured music_directory.
#
#follow_inside_symlinks		"yes"
#
###############################################################################


# Zeroconf / Avahi Service Discovery ##########################################
#
# If this setting is set to "yes", service information will be published with
# Zeroconf / Avahi.
#
#zeroconf_enabled		"yes"
#
# The argument to this setting will be the Zeroconf / Avahi unique name for
# this MPD server on the network. %h will be replaced with the hostname.
#
#zeroconf_name			"Music Player @ %h"
#
###############################################################################


# Permissions #################################################################
#
# If this setting is set, MPD will require password authorization. The password
# setting can be specified multiple times for different password profiles.
#
#password                        "password@read,add,control,admin"
#
# This setting specifies the permissions a user has who has not yet logged in. 
#
#default_permissions             "read,add,control,admin"
#
###############################################################################


# Database #######################################################################
#

#database {
#       plugin "proxy"
#       host "other.mpd.host"
#       port "6600"
#}

# Input #######################################################################
#

input {
        plugin "curl"
#       proxy "proxy.isp.com:8080"
#       proxy_user "user"
#       proxy_password "password"
}

#
###############################################################################

# Audio Output ################################################################
#
# MPD supports various audio output types, as well as playing through multiple 
# audio outputs at the same time, through multiple audio_output settings 
# blocks. Setting this block is optional, though the server will only attempt
# autodetection for one sound card.
#
# An example of an ALSA output:
#
#audio_output {
#	type		"alsa"
#	name		"My ALSA Device"
##	device		"hw:0,0"	# optional
##	mixer_type      "hardware"	# optional
##	mixer_device	"default"	# optional
##	mixer_control	"PCM"		# optional
##	mixer_index	"0"		# optional
#}
#
# An example of an OSS output:
#
#audio_output {
#	type		"oss"
#	name		"My OSS Device"
##	device		"/dev/dsp"	# optional
##	mixer_type      "hardware"	# optional
##	mixer_device	"/dev/mixer"	# optional
##	mixer_control	"PCM"		# optional
#}
#
# An example of a shout output (for streaming to Icecast):
#
#audio_output {
#	type		"shout"
#	encoder		"vorbis"		# optional
#	name		"My Shout Stream"
#	host		"localhost"
#	port		"8000"
#	mount		"/mpd.ogg"
#	password	"hackme"
#	quality		"5.0"
#	bitrate		"128"
#	format		"44100:16:1"
##	protocol	"icecast2"		# optional
##	user		"source"		# optional
##	description	"My Stream Description"	# optional
##	url		"http://example.com"	# optional
##	genre		"jazz"			# optional
##	public		"no"			# optional
##	timeout		"2"			# optional
##	mixer_type      "software"		# optional
#}
#
# An example of a recorder output:
#
#audio_output {
#	type		"recorder"
#	name		"My recorder"
#	encoder		"vorbis"		# optional, vorbis or lame
#	path		"/var/lib/mpd/recorder/mpd.ogg"
##	quality		"5.0"			# do not define if bitrate is defined
#	bitrate		"128"			# do not define if quality is defined
#	format		"44100:16:1"
#}
#
# An example of a httpd output (built-in HTTP streaming server):
#
#audio_output {
#	type		"httpd"
#	name		"My HTTP Stream"
#	encoder		"vorbis"		# optional, vorbis or lame
#	port		"8000"
#	bind_to_address	"0.0.0.0"		# optional, IPv4 or IPv6
##	quality		"5.0"			# do not define if bitrate is defined
#	bitrate		"128"			# do not define if quality is defined
#	format		"44100:16:1"
#	max_clients	"0"			# optional 0=no limit
#}
#
# An example of a pulseaudio output (streaming to a remote pulseaudio server)
#
audio_output {
	type		"pulse"
	name		"Pulse Out"
##	server		"remote_server"		# optional
##	sink		"remote_server_sink"	# optional
}
#
# An example of a winmm output (Windows multimedia API).
#
#audio_output {
#	type		"winmm"
#	name		"My WinMM output"
##	device		"Digital Audio (S/PDIF) (High Definition Audio Device)" # optional
#		or
##	device		"0"		# optional
##	mixer_type	"hardware"	# optional
#}
#
# An example of an openal output.
#
#audio_output {
#	type		"openal"
#	name		"My OpenAL output"
##	device		"Digital Audio (S/PDIF) (High Definition Audio Device)" # optional
#}
#
# An example of an sndio output.
#
#audio_output {
#	type		"sndio"
#	name		"sndio output"
#	mixer_type	"hardware"
#}
#
# An example of an OS X output:
#
#audio_output {
#	type		"osx"
#	name		"My OS X Device"
##	device		"Built-in Output"	# optional
##	channel_map      "-1,-1,0,1"	# optional
#}
#
## Example "pipe" output:
#
#audio_output {
#	type		"pipe"
#	name		"my pipe"
#	command		"aplay -f cd 2>/dev/null"
## Or if you're want to use AudioCompress
#	command		"AudioCompress -m | aplay -f cd 2>/dev/null"
## Or to send raw PCM stream through PCM:
#	command		"nc example.org 8765"
#	format		"44100:16:2"
#}
#
## An example of a null output (for no audio output):
#
#audio_output {
#	type		"null"
#	name		"My Null Output"
#	mixer_type      "none"			# optional
#}
#
###############################################################################


# Normalization automatic volume adjustments ##################################
#
# This setting specifies the type of ReplayGain to use. This setting can have
# the argument "off", "album", "track" or "auto". "auto" is a special mode that
# chooses between "track" and "album" depending on the current state of
# random playback. If random playback is enabled then "track" mode is used.
# See <http://www.replaygain.org> for more details about ReplayGain.
# This setting is off by default.
#
#replaygain			"album"
#
# This setting sets the pre-amp used for files that have ReplayGain tags. By
# default this setting is disabled.
#
#replaygain_preamp		"0"
#
# This setting sets the pre-amp used for files that do NOT have ReplayGain tags.
# By default this setting is disabled.
#
#replaygain_missing_preamp	"0"
#
# This setting enables or disables ReplayGain limiting.
# MPD calculates actual amplification based on the ReplayGain tags
# and replaygain_preamp / replaygain_missing_preamp setting.
# If replaygain_limit is enabled MPD will never amplify audio signal
# above its original level. If replaygain_limit is disabled such amplification
# might occur. By default this setting is enabled.
#
#replaygain_limit		"yes"
#
# This setting enables on-the-fly normalization volume adjustment. This will
# result in the volume of all playing audio to be adjusted so the output has 
# equal "loudness". This setting is disabled by default.
#
#volume_normalization		"no"
#
###############################################################################

# Character Encoding ##########################################################
#
# If file or directory names do not display correctly for your locale then you 
# may need to modify this setting.
#
#filesystem_charset		"UTF-8"
#
###############################################################################

output from 'mpd --verbose --stdout --no-daemon'

config_file: loading file /home/zhme/.config/mpd/mpd.conf
exception: Default TCP listener setup failed, but this is okay because we have a $XDG_RUNTIME_DIR listener: Failed to bind to '[::]:6600'
exception: Failed to bind socket: Address already in use
libsamplerate: libsamplerate converter 'Fastest Sinc Interpolator'
vorbis: Xiph.Org libVorbis 1.3.6
opus: libopus 1.3.1
sndfile: libsndfile-1.0.28
hybrid_dsd: The Hybrid DSD decoder is disabled because it was not explicitly enabled
exception: Decoder plugin 'wildmidi' is unavailable: configuration file does not exist: /etc/timidity/timidity.cfg
simple_db: reading DB
exception: Input plugin 'tidal' is unavailable: No Tidal application token configured
exception: Input plugin 'qobuz' is unavailable: No Qobuz app_id configured
curl: version 7.68.0
curl: with OpenSSL/1.1.1d
avahi: Initializing interface
exception: RTIOThread could not get realtime scheduling, continuing anyway: sched_setscheduler failed: Operation not permitted
avahi: Client changed to state 101
avahi: Client is CONNECTING
state_file: Loading state file /home/zhme/.mpd/state
decoder_thread: probing plugin flac
playlist: queue song 2:"Coldplay - Fix You.mp3"
decoder: audio_format=44100:16:2, seekable=true
exception: OutputThread could not get realtime scheduling, continuing anyway: sched_setscheduler failed: Operation not permitted
output: opened "Pulse Out" (pulse) audio_format=44100:16:2
state_file: Saving state file /home/zhme/.mpd/state
avahi: Shutting down interface
player: played "Pink Floyd - The Dark Side Of The Moon 1973 - Brain Damage.flac"
output: closed "Pulse Out" (pulse)

I tried to stop and disable the mpd service so that I could run mpd without conflicting services but upon inspection of systemctl it appears that I haven't removed it correctly.

systemctl status mpd.service

● mpd.service - Music Player Daemon
     Loaded: loaded (/usr/lib/systemd/system/mpd.service; disabled; vendor preset: disabled)
     Active: active (running) since Mon 2020-01-27 01:37:36 CST; 14min ago
TriggeredBy: ● mpd.socket
       Docs: man:mpd(1)
             man:mpd.conf(5)
   Main PID: 7637 (mpd)
      Tasks: 3 (limit: 9394)
     Memory: 7.6M
     CGroup: /system.slice/mpd.service
             └─7637 /usr/bin/mpd --no-daemon

Jan 27 01:51:47 top mpd[7637]: client: [434] opened from 127.0.0.1:60172
Jan 27 01:51:47 top mpd[7637]: client: [434] closed
Jan 27 01:51:49 top mpd[7637]: client: [435] opened from 127.0.0.1:60174
Jan 27 01:51:49 top mpd[7637]: client: [435] closed
Jan 27 01:51:51 top mpd[7637]: client: [436] opened from 127.0.0.1:60176
Jan 27 01:51:51 top mpd[7637]: client: [436] closed
Jan 27 01:51:53 top mpd[7637]: client: [437] opened from 127.0.0.1:60178
Jan 27 01:51:53 top mpd[7637]: client: [437] closed
Jan 27 01:51:55 top mpd[7637]: client: [438] opened from 127.0.0.1:60180
Jan 27 01:51:55 top mpd[7637]: client: [438] closed

Another thing that I find strange is the mpd user running a process. Having changed the config file to run as my user.
ps aux | grep mpd

zhme        8228  1.5  1.9 1305944 155656 ?      Ssl  01:42   0:11 /usr/lib/electron6/electron --no-sandbox /usr/lib/code/code.js .config/mpd/mpd.conf
mpd        10173  0.9  0.4 285112 37796 ?        Ssl  01:54   0:00 /usr/bin/mpd --no-daemon
zhme       10215  0.0  0.0   7224  2376 pts/0    S+   01:55   0:00 grep mpd

Any help would be greatly appreciated.

P.S. I have read through a good many forum posts, but if one of them has the information that I need and I overlooked it I would be happy to be pointed in the right direction!

EDIT:

ls -la ~/.config/mpd/

total 28
drwxr-xr-x  3 zhme zhme  4096 Jan 26 11:01 .
drwxr-xr-x 23 zhme zhme  4096 Jan 27 01:50 ..
-rw-r--r--  1 zhme zhme     0 Jan 26 11:01 database
-rw-r--r--  1 zhme zhme 12426 Jan 27 01:07 mpd.conf
drwxr-xr-x  2 zhme zhme  4096 Jan 26 10:36 playlists

Last edited by Zhme (2020-01-27 20:30:00)

V1del · 2020-01-27 20:15:59

You should use the user service of MPD for that and not the system service: https://wiki.archlinux.org/index.php/Mu … th_systemd (as in use

systemctl --user start mpd.service

and disable/stop the system service before hand.

Last edited by V1del (2020-01-27 20:16:35)

Zhme · 2020-01-27 20:29:34

Thank you V1del! It appears as though, even having a few years of experience being directed back to docs and manpages, that I still need to read more carefully!

Stopped/disabled mpd.services

sudo systemctl stop mpd.service && sudo systemctl disable mpd.service

Then started and enabled as user

systemctl start mpd.service && systemctl enable mpd.service

This fixed the problem right away. Solved.

/facepalm

Slithery · 2020-01-27 20:37:11

Zhme wrote:

Then started and enabled as user
systemctl start mpd.service && systemctl enable mpd.service

If you didn't use the --user flag then no, you didn't.

Zhme · 2020-01-27 23:35:18

Slithery wrote:

Zhme wrote:
Then started and enabled as user
systemctl start mpd.service && systemctl enable mpd.service
If you didn't use the --user flag then no, you didn't.

Whoops. Didn't copy from bash_history, just typed it out for posterity xD

Thank you Slithery, it should have said

systemctl --user start mpd.service && systemctl --user enable mpd.service

Arch Linux

#1 2020-01-27 19:57:41

[Solved] MPD: No Database; Failed to bind socket: Address already in

#2 2020-01-27 20:15:59

Re: [Solved] MPD: No Database; Failed to bind socket: Address already in

#3 2020-01-27 20:29:34

Re: [Solved] MPD: No Database; Failed to bind socket: Address already in

#4 2020-01-27 20:37:11

Re: [Solved] MPD: No Database; Failed to bind socket: Address already in

#5 2020-01-27 23:35:18

Re: [Solved] MPD: No Database; Failed to bind socket: Address already in

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