自从我在Ubuntu 16.04上更新了Mosquitto v2.0.3以来,用户无法连接到代理。
当我尝试运行/usr/sbin/mosquitto -c /etc/mosquitto/mosquitto.conf
它时,抛出了以下消息。
2020-12-22|12:37:02: Error: Unable to write pid file.
我看到有些人也遇到了同样的问题,因此我pid_file /var/run/mosquitto/mosquitto.pid
在mosquitto配置中添加了该问题,但问题并没有消失。
我有这样的/lib/systemd/system/mosquitto.service
:
[Unit]
Description=Mosquitto MQTT Broker
Documentation=man:mosquitto.conf(5) man:mosquitto(8)
After=network.target
Wants=network.target
[Service]
Type=notify
NotifyAccess=main
ExecStart=/usr/sbin/mosquitto -c /etc/mosquitto/mosquitto.conf
ExecReload=/bin/kill -HUP $MAINPID
Restart=on-failure
ExecStartPre=/bin/mkdir -m 740 -p /var/log/mosquitto
ExecStartPre=/bin/chown mosquitto: /var/log/mosquitto
ExecStartPre=/bin/mkdir -m 740 -p /var/run/mosquitto
ExecStartPre=/bin/chown mosquitto: /var/run/mosquitto
[Install]
WantedBy=multi-user.target
mosquitto.conf文件配置为:
# 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/mosquitto.pid
persistence true
persistence_location /var/lib/mosquitto/
log_dest file /var/log/mosquitto/mosquitto.log
include_dir /etc/mosquitto/conf.d
listener 1883
log_type error
log_type notice
log_type information
log_type debug
log_type all
log_dest topic
log_type warning
allow_anonymous false
connection_messages true
max_keepalive 10
log_timestamp true
log_timestamp_format %Y-%m-%d|%H:%M:%S
password_file /etc/mosquitto/pwfile
####################################################
# MOSQUITTO LISTENER WITH SLL
####################################################
listener 8883
protocol mqtt
allow_anonymous false
#PARA BROKER EN PC
cafile /etc/mosquitto/certs/ca.crt
keyfile /etc/mosquitto/certs/server.key
certfile /etc/mosquitto/certs/server.crt
#PARA BROKER EN RASPBERRY PI 3
#cafile /etc/mosquitto/certs/ca_pi.crt
#keyfile /etc/mosquitto/certs/server_pi.key
#certfile /etc/mosquitto/certs/server_pi.crt
tls_version tlsv1.2
当我从终端运行systemctl status mosquitto时,它显示了以下消息...
● mosquitto.service - Mosquitto MQTT Broker
Loaded: loaded (/etc/systemd/system/mosquitto.service; enabled; vendor preset: enabled)
Active: activating (auto-restart) (Result: exit-code) since mar 2020-12-22 13:06:13 -04; 5s ago
Docs: man:mosquitto(8)
man:mosquitto.conf(5)
Process: 22889 ExecStart=/usr/sbin/mosquitto -c /etc/mosquitto/mosquitto.conf (code=exited, status=1/FAILURE)
Main PID: 22889 (code=exited, status=1/FAILURE)
dic 22 13:06:13 carmenmoncada systemd[1]:
我不知道发生了什么,有人可以帮我吗?在此先感谢你。
伙计们,我已经找到了解决问题的方法。
我也设法使其正常工作。我已经手动创建了一个目录/var/run/mosquitto
,该目录拥有用户mosquitto的所有权,然后自动创建了文件夹和文件。
sudo mkdir -m 777 mosquitto
在mosquitto.conf中,我设置了
pid_file /var/run/mosquitto/mosquitto.pid
这是由于Mosquitto 2.0+使用root用户/特权用户的方式发生了变化。有关本期ubuntu软件包的一些说明。
“世界”,“可写”不是一个很好的做法。您至少应尝试755,并确保该目录归您的“ mosquitto”用户ID所拥有。