I have installed MySQL server on Alibaba Cloud ECS instance, I am updating the /etc/mysql/my.cnf with bind-address = 0.0.0.0, after that, I am unable to restart the MySQL service. The below is the error
mysql.service - MySQL Community Server
Loaded: loaded (/lib/systemd/system/mysql.service; enabled; vendor preset: enabled)
Active: activating (start-post) (Result: exit-code) since Tue 2018-12-25 16:56:32 IST; 7s ago
Process: 6905 ExecStart=/usr/sbin/mysqld (code=exited, status=1/FAILURE)
Process: 6896 ExecStartPre=/usr/share/mysql/mysql-systemd-start pre (code=exited, status=0/SUCCESS)
Main PID: 6905 (code=exited, status=1/FAILURE); : 6906 (mysql-systemd-s)
CGroup: /system.slice/mysql.service
└─control
├─6906 /bin/bash /usr/share/mysql/mysql-systemd-start post
└─6925 sleep 1
Dec 25 16:56:32 iZa2dej95yv6tb65txtwfhZ systemd[1]: Starting MySQL Community Server...
Dec 25 16:56:32 iZa2dej95yv6tb65txtwfhZ mysql-systemd-start[6896]: my_print_defaults: [ERROR] Found option without preceding group in config file /etc/mysql/my.cnf at line
Dec 25 16:56:32 iZa2dej95yv6tb65txtwfhZ mysql-systemd-start[6896]: my_print_defaults: [ERROR] Fatal error in defaults handling. Program aborted!
Dec 25 16:56:32 iZa2dej95yv6tb65txtwfhZ systemd[1]: mysql.service: Main process exited, code=exited, status=1/FAILURE
It seems to be some syntax problem or may be an encoding problem. Please check this
Setting bind address to "0.0.0.0" tells MySQL to listen to all interfaces. It seems like you want to access MySQL remotely if I am not wrong. If so then you can simply comment out the bind-address and restart it will work fine.
Some MySQL packaged versions would have startup | maintenance scripts which will attempt to access MySQL on default address (127.0.0.1). Even it may be the cause or you may have another bind-address parameter unknowingly.
So better to comment it out, restart the MySQL again.
Mysql Package maybe was change, testing to change on /etc/mysql/mysql.conf.d/mysqld.cnf, change or remove bind on /etc/mysql/my.cnf
Related
As part of a bash script I check the recently installed Apache Tomcat status with
sudo systemctl status tomcat
The output is as follows
● tomcat.service
Loaded: loaded (/etc/systemd/system/tomcat.service; enabled; vendor preset: enabled)
Active: active (running) since Mon 2023-01-30 16:25:48 UTC; 3min 9s ago
Process: 175439 ExecStart=/opt/tomcat/bin/startup.sh (code=exited, status=0/SUCCESS)
Main PID: 175447 (java)
Tasks: 30 (limit: 4546)
Memory: 253.0M
CPU: 9.485s
CGroup: /system.slice/tomcat.service
└─175447 /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Djava.util.logging.config.file=/opt/tomcat/conf/logging.properties -Djava.uti>
Jan 30 16:25:48 vps-06354c04 systemd[1]: Starting tomcat.service...
Jan 30 16:25:48 vps-06354c04 startup.sh[175439]: Tomcat started.
Jan 30 16:25:48 vps-06354c04 systemd[1]: Started tomcat.service.
Jan 30 16:25:48 vps-06354c04 systemd[1]: /etc/systemd/system/tomcat.service:1: Assignment outside of section. Ignoring.
Jan 30 16:25:48 vps-06354c04 systemd[1]: /etc/systemd/system/tomcat.service:2: Assignment outside of section. Ignoring.
This is the info I expect to see, but after printing it, systemctl keeps waiting for the user to type a key, breaking the automation I expect to deliver.
How can I avoid this behaviour?
I'm pretty sure the --no-pager option would keep that from happening. I just confirmed that on my own system on a different service. Otherwise, it goes interactive.
I don't recall ever seeing systemctl status asking for input, so perhaps it's the sudo used in this command doing that, in which case you could ask your system administrator to enable passwordless sudo on the account that runs this command.
A general solution for automating user input in shell scripts is to use expect, but for a simple case where you only need to send a single value one time, you can often get by with using echo and piping the value to the command (e.g., echo 'foo' | sudo systemctl status tomcat), although you should never do this to pass sensitive information such as passwords because that will potentially be accessible to other users on that system.
I tried a lot but CH did not work. Please help me/
I installen ClickHouse on CentOs7 according to the https://clickhouse.tech/docs/ru/getting-started/install/
I entered
sudo systemctl status clickhouse-server
and did not see any result
I entered sudo clickhouse-client -h 127.0.0.1 --user default
sudo: unable to execute /bin/clickhouse-client: Operation not permitted
I entered sudo systemctl status clickhouse-server
clickhouse-server.service - ClickHouse Server (analytic DBMS for big data)
Loaded: loaded (/usr/lib/systemd/system/clickhouse-server.service; enabled; vendor preset: disabled)
Active: activating (auto-restart) (Result: exit-code) since Thu 2020-12-24 18:56:34 UTC; 5s ago
Process: 7871 ExecStart=/usr/bin/clickhouse-server --config=/etc/clickhouse-server/config.xml --pid-file=/run/clickhouse-server/clickhouse-server.pid (code=exited, status=203/EXEC)
Main PID: 7871 (code=exited, status=203/EXEC)
CGroup: /machine.slice/libpod-5371acee9c1a12529197f3a6dadcbd14393f20d7e91c2e347e9147508002aee7.scope/system.slice/clickhouse-server.service
Dec 24 18:56:34 ok-parser systemd[1]: Unit clickhouse-server.service entered failed state.
Log file /var/log/clickhouse-server/clickhouse-server.log is empty
I have faced a very similar or exactly the same issue recently.
It seems to be a ClickHouse issue: ClickHouse server fails to start after upgrading from 22.3.6.5-lts to 22.4.5.9-stable · Issue #37099 · ClickHouse/ClickHouse.
Here is the solution comment:
den-crane commented May 12, 2022, 9:48 PM GMT+3
#svbrunov you need to do
rm /etc/systemd/system/clickhouse-server.service
systemctl daemon-reload
service clickhouse-server restart
OS level: CentOS Linux release 7.4.1708
Prometheus level: 2.4.2
prometheus.service:
[Unit]
Description=Prometheus
[Service]
User=prometheus
ExecStart=/usr/local/prometheus/prometheus
[Install]
WantedBy=default.target
When I use systemctl start prometheus to start the prometheus service, it always exit the main process by itself. And the systemctl's log shows like this:
● prometheus.service - Prometheus
Loaded: loaded (/etc/systemd/system/prometheus.service; disabled; vendor preset: disabled)
Active: failed (Result: exit-code) since Tue 2018-09-25 10:43:56 CST; 6s ago
Process: 5174 ExecStart=/usr/local/prometheus/prometheus (code=exited, status=1/FAILURE)
Main PID: 5174 (code=exited, status=1/FAILURE)
Sep 25 10:43:56 devtestserver systemd[1]: Started Prometheus.
Sep 25 10:43:56 devtestserver systemd[1]: Starting Prometheus...
Sep 25 10:43:56 devtestserver prometheus[5174]: level=info ts=2018-09-25T02:43:56.736457704Z caller=main.go:238 msg="Starting Prometheus" version="(version=2.4.2, branch=HE...13b1190a0)"
Sep 25 10:43:56 devtestserver systemd[1]: prometheus.service: main process exited, code=exited, status=1/FAILURE
Sep 25 10:43:56 devtestserver systemd[1]: Unit prometheus.service entered failed state.
Sep 25 10:43:56 devtestserver systemd[1]: prometheus.service failed.
Hint: Some lines were ellipsized, use -l to show in full.
I have no ideas with this problem. I use the same config for the node_exporter, but node_exporter can start as normal. Please help. Thanks a lot.
You have not added configuration file i.e. prometheus.yml
Considering Service part of your prometheus.service file,
ExecStart=/usr/local/prometheus/prometheus \
--config.file /prometheus-2.26.0.linux-amd64/prometheus.yml
here, my .yml file is in /prometheus-2.26.0.linux-amd64/ location.
your might be different. Befre running check your both paths i.e. your executable file is on the path given in "ExecStart" and yml file is in --config.file
then reload your system by
systemctl daemon-reload
systemctl start prometheus
systemctl enable prometheus
then check the status using,
systemctl status prometheus
It should be active(running).
This should solve your problem. Let me know if it helped : )
There is an extra "i" at the end of WantedBy=default.target.
To get more details about services failing to start, try sudo journalctl -ex
My guess is it's either the extra "i" or Prometheus might not be able to parse your scrape rules or alerts files. It comes with "promtool" to check your configuration files and is installed in the same directory as prometheus. Your first step should be to try "promtool check config /path/to/prometheus.yml"
I encountered the same issue with Ubuntu 16.04. Turned out to be a permissions issue.
You should check that you user owns the directories in which you installed the binaries and the files inside these directories.
Where is the config file located? systemd is executed by / by default. prometheus reads the setting of ./prometheus.yml by default. Perhaps you need to add the following config option to the unit file of systemd.
[Unit]
Description=Prometheus
[Service]
User=prometheus
ExecStart=/usr/local/prometheus/prometheus --config.file /path/to/your/config
[Install]
WantedBy=default.target
This problem is caused because the data storage directory does not have permission. The default Prometheus data directory is /data.
chown -R prometheus:prometheus /data
copy and paste this in your command line:
sudo tee /etc/systemd/system/prometheus.service<<EOF
[Unit]
Description=Prometheus
Documentation=https://prometheus.io/docs/introduction/overview/
Wants=network-online.target
After=network-online.target
[Service]
Type=simple
User=prometheus
Group=prometheus
ExecReload=/bin/kill -HUP \$MAINPID
ExecStart=/usr/local/bin/prometheus \
--config.file=/etc/prometheus/prometheus.yml \
--storage.tsdb.path=/var/lib/prometheus \
--web.console.templates=/etc/prometheus/consoles \
--web.console.libraries=/etc/prometheus/console_libraries \
--web.listen-address=0.0.0.0:9090 \
--web.external-url=
SyslogIdentifier=prometheus
Restart=always
[Install]
WantedBy=multi-user.target
EOF
I encountered similar issue in redhat/Centos.I solved it by temporarily running "sudo setenforce 0". You can also edit the /etc/selinux/config file and set the SELINUX to disabled
I have a small cluster with three nodes on my home server for learning purpose.
It was working fine after it was initially set up.
I haven't used it for a month and today when I try to use it, I found Cloudera Manager GUI cannot be accessed, I checked the network between the 3 nodes are good, they can ping to each other.
On master node where CM is installed, I tried service cloudera-scm-server start, it shows me [OK] in green; when I check the status it shows the following info:
[root#pocnnr1n1 ~]# service cloudera-scm-server status -l
● cloudera-scm-server.service - LSB: Cloudera SCM Server
Loaded: loaded (/etc/rc.d/init.d/cloudera-scm-server; bad; vendor preset: disabled)
Active: active (exited) since Fri 2017-09-15 20:58:24 EDT; 18min ago
Docs: man:systemd-sysv-generator(8)
Process: 107428 ExecStop=/etc/rc.d/init.d/cloudera-scm-server stop (code=exited, status=1/FAILURE)
Process: 107467 ExecStart=/etc/rc.d/init.d/cloudera-scm-server start (code=exited, status=0/SUCCESS)
Sep 15 20:58:19 pocnnr1n1.raymond.com systemd[1]: Starting LSB: Cloudera SCM Server...
Sep 15 20:58:19 pocnnr1n1.raymond.com su[107494]: (to cloudera-scm) root on none
Sep 15 20:58:24 pocnnr1n1.raymond.com cloudera-scm-server[107467]: Starting cloudera-scm-server: [ OK ]
Sep 15 20:58:24 pocnnr1n1.raymond.com systemd[1]: Started LSB: Cloudera SCM Server.
So, is the Cloudera Manager service started or stopped?
When I try to access CM through GUI, it shows below in chrome:
This site can’t be reached
192.168.211.251 refused to connect. Search Google for 192 168 211 251 7180 ERR_CONNECTION_REFUSED
Can anyone help me to fix it? Thank you very much.
This indicates the Cloudera Manager startup runs into an error. What you should do is to check the log file of your Cloudera Manager, which should be located at /var/log/cloudera-scm-server directory. Since this is a POC cluster, I assume that when you set it up, you did not use the external database like MySQL. Instead, you probably used the embedded postgresql database. If that's the case, please make sure the embedded database process is running while you start up the Cloudera Manager Server. To check the status of embedded db, you can do
service cloudera-scm-server-db status
The error when I attempted to start mariadb and failed was because there are dead processes, could be related to previous failed attempt, I killed those failed processes, and restart the mariadb with success, after that, cloudera-scm-server starts successfully.
Thank you. I hope this help for later viewers.
I'm writing a bash-script but I often face this issue.
When I try to start or stop a service I often get:
start request repeated too quickly
How can I solve this problem?
It's for example when I try to restart docker or openshift-origin master.
sudo service origin-master restart
● origin-master.service - Origin Master Service
Loaded: loaded (/usr/lib/systemd/system/origin-master.service; enabled; vendor preset: disabled)
Active: failed (Result: start-limit) since Wed 2016-02-17 08:22:11 UTC; 44s ago
Docs: https://github.com/openshift/origin
Process: 2296 ExecStart=/usr/bin/openshift start master --config=${CONFIG_FILE} $OPTIONS (code=exited, status=255)
Main PID: 2296 (code=exited, status=255)
Feb 17 08:22:10 ip-172-xx-xx-xx.eu-central-1.compute.internal systemd[1]: origin-master.service: main process exited, code=exited, status=255/n/a
Feb 17 08:22:10 ip-172-xx-xx-xx.eu-central-1.compute.internal systemd[1]: Failed to start Origin Master Service.
Feb 17 08:22:10 ip-172-xx-xx-xx.eu-central-1.compute.internal systemd[1]: Unit origin-master.service entered failed state.
Feb 17 08:22:10 ip-172-xx-xx-xx.eu-central-1.compute.internal systemd[1]: origin-master.service failed.
Feb 17 08:22:11 ip-172-xx-xx-xx.eu-central-1.compute.internal systemd[1]: origin-master.service holdoff time over, scheduling restart.
Feb 17 08:22:11 ip-172-xx-xx-xx.eu-central-1.compute.internal systemd[1]: start request repeated too quickly for origin-master.service
Feb 17 08:22:11 ip-172-xx-xx-xx.eu-central-1.compute.internal systemd[1]: Failed to start Origin Master Service.
Feb 17 08:22:11 ip-172-xx-xx-xx.eu-central-1.compute.internal systemd[1]: Unit origin-master.service entered failed state.
Feb 17 08:22:11 ip-172-xx-xx-xx.eu-central-1.compute.internal systemd[1]: origin-master.service failed.
My script is just doing:
if [ $1 = "-u" ]
then
sudo service origin-master restart
fi
A manual restart is possible before I've executed the script. But after it it remains giving the error
This is a "feature" of systemctl. There is a parameter in the file that limits the restart frequency in seconds. Lower this while testing.
Edit the file
/etc/systemd/system/multi-user.target.wants/<your service here>
my example:
Restart=on-failure
StartLimitBurst=2
# Restart, but not more than once every 10 minutes
#StartLimitInterval=600
# Restart, but not more than once every 30s (for testing purposes)
StartLimitInterval=30
I suggest you familiarize yourself with systemd. That's what you're using under the hood when you run service. As #chepner says, the service is failing (as you can see from the second line of the log), and it's being restarted too quickly, triggering the error.
Try running journalctl -u origin-master.service to figure out why the error is happening.
Also, systemd cat origin-master.service will show you the Service Unit file that describes your service - there might be errors.
I had this problem on Ubuntu 20.4. And by adding execute permission to the ExecStart file the problem was solved.
sudo chmod +x /path/to/execfile
I have faced same issue and solved this problem like that:
if /var/log/mysql folder not exists:
sudo mkdir /var/log/mysql
and then give permission this folder:
sudo chown -R mysql:mysql /var/log/mysql
sudo systemctl stop mysql
sudo systemctl start mysql
in my case, there was a typing mistake in this file -> /etc/systemd/system/multi-user.target.wants/<your service here> so after tweaking necessary parameters, if you are still facing the same error, don't forget to check the file
In my case , is my /etc/docker/daemon.json file format error, when i make this true, run systemctl start docker the server start success.
Please try running the command :
td-agent --dry-run
This will give you the root cause.