mosquitto - auto start not functioning - manual startup needed

[chris-008]

Hi,

After reboot of my pi, mosquitto won't start even though when checking the status, it says it's active:

pi@orangepizero:~$ sudo systemctl status mosquitto.service
● mosquitto.service - Mosquitto MQTT Broker
Loaded: loaded (/etc/systemd/system/mosquitto.service; enabled; vendor preset: enabled)
Active: active (running) since Sat 2018-07-14 23:51:07 CEST; 15ms ago
Docs: man:mosquitto(8)
man:mosquitto.conf(5)
Main PID: 1330 (mosquitto)
Tasks: 0 (limit: 4915)
CGroup: /system.slice/mosquitto.service
└─1330 /usr/sbin/mosquitto -c /etc/mosquitto/mosquitto.conf

Jul 14 23:51:07 orangepizero systemd[1]: Started Mosquitto MQTT Broker.

It's only after i manually start
sudo mosquitto
that everything starts working.

I checked all auto start after reboot sequences and tried them but nothing helps so far?

Any help is much appreciated!!

[anfractuosity]

Have you had a look at the mosquitto log file? ( cat /var/log/mosquitto.log, if i recall correctly)

[dews]

Try this

sudo systemctl enable mosquitto

[chris-008]

Hi guys,
Can’t seem to find the log file.
Tried the enable option already but doesn’t help.
Thx for your suggestions though

[anfractuosity]

Your conf file will define where the log file is located have a look in /etc/mosquitto/mosquitto.conf
which will tell you.

[toast-uz]

@chris-008 did you find the log file?

[ralight]

@chris-008 If this is still an issue, try running manually with exactly the same command as systemd uses:

/usr/sbin/mosquitto -c /etc/mosquitto/mosquitto.conf

This may highlight the error.

[chris-008]

hi guys, sorry haven't been online much lately during the summer holidays.
Thanks for the info though , will check it soon and give feedback!

[chris-008]

so I found the log file under /var/log/mosquitto/mosquitto.log.
Next error is produced frequently:

1531629123: mosquitto version 1.5 starting
1531629123: Config loaded from /etc/mosquitto/mosquitto.conf.
1531629123: Opening ipv4 listen socket on port 1883.
1531629123: Error: Address already in use

After some googling, I found that it seems because two copies of mosquitto are running?
after checking my installations, I only found one install though:

apt list --installed:
...
mosquitto/stretch,now 1.5-0mosquitto2 armhf [installed]
mosquitto-clients/stretch,now 1.5-0mosquitto2 armhf [installed]
...

After a Pi reboot, the mosquitto service seems to be running:
pi@orangepizero:~$ systemctl status mosquitto.service
● mosquitto.service - Mosquitto MQTT Broker daemon
Loaded: loaded (/etc/systemd/system/mosquitto.service; enabled; vendor preset: enabled)
Active: inactive (dead) since Sat 2018-08-11 23:13:39 CEST; 1min 49s ago
Process: 524 ExecStart=/usr/sbin/mosquitto -c /etc/mosquitto/mosquitto.conf -d (code=exited, status=0/SUCCESS)
Main PID: 524 (code=exited, status=0/SUCCESS)

Aug 11 23:13:39 orangepizero systemd[1]: Started Mosquitto MQTT Broker daemon.

However, it doesn't work. Only after manually starting mosquitto it will work?

[toast-uz]

Thanks. I found the same "Error: Address already in use" reported on #894 .

[chris-008]

Here is a copy of my conf file:

Place your local configuration in /etc/mosquitto/conf.d/

#

A full description of the configuration file is at

/usr/share/doc/mosquitto/examples/mosquitto.conf.example

pid_file /var/run/mosquitto.pid

persistence true
persistence_location /var/lib/mosquitto/

log_dest file /var/log/mosquitto/mosquitto.log

log_type all

allow_anonymous false
password_file /etc/mosquitto/passwd
listener 1883

I tried changing the mosquitto username and passwordfile again,as this in some cases helped, but to no avail.

pi@orangepizero:~$ mosquitto -c /etc/mosquitto/mosquitto.conf
1534028168: Error: Unable to open log file /var/log/mosquitto/mosquitto.log for writing.

So it seems like I don't have write acces to the " /var/log/mosquitto/mosquitto.log" file ?

Referring to #894, I have commented out the listener 1883 and rebooted, but no change.

[Tifaifai]

try this :
$ touch /var/log/mosquitto/mosquitto.log
$ chmod 777 /var/log/mosquitto/mosquitto.log

[chris-008]

thx for the help, the error is gone.
Still not working though.

[chris-008]

after checking the mosquitto service status, I also noticed next line:

Active: inactive (dead) since Sun 2018-08-12 02:02:00 CEST; 6s ago

I assume this indicates that Mosquitto is not running?
I tried systemctl start mosquitto and enable the service, but no change.

I read that it could be systemd related.

Here are the results of the mosquitto service file, anything weird in it?

[Unit]
Description=Mosquitto MQTT Broker daemon
ConditionPathExists=/etc/mosquitto/mosquitto.conf
Requires=network.target

[Service]
Type=simple
ExecStartPre=/bin/sh -c '/usr/bin/test -d /var/run/mosquitto || /bin/mkdir /var/run/mosquitto || /bin/chown mosquitto:mosquitto /var/run/mosquitto || /bin/rm -f /var/run/mosquitto/mosquitto.pid’
ExecStart=/usr/sbin/mosquitto -c /etc/mosquitto/mosquitto.conf -d
ExecReload=/bin/kill -HUP $MAINPID
PIDFile=/var/run/mosquitto/mosquitto.pid
Restart=on-failure

[Install]
WantedBy=multi-user.target

[chris-008]

Yess...Got it working!!!

Went through quite a lot of websites about this matter, seems to be a known (systemd) problem.
So this worked for me:
Have the mosquitto.service file configured as follows:

then comment the listener 1883 line in the mosquitto conf file :

hope this helps!

[sanhardik]

@chris-008
Thanks for the code.
However, I see that all the logs go to the syslog file rather than the log destination mentioned in the mosquitto conf file.
log_dest file /var/log/mosquitto/mosquitto.log