mariadb 10.1.x galera cluster setting.
first node 192.168.159.132
/etc/mysql/my.cnf
[galera]
# Mandatory settings
wsrep_on=ON
wsrep_provider=/usr/lib/galera/libgalera_smm.so
wsrep_cluster_address=gcomm://192.168.159.132,192.168.159.135,192.168.159.136
binlog_format=row
default_storage_engine=InnoDB
innodb_autoinc_lock_mode=2
first node 192.168.159.132
$ sudo service mysql bootstrap
* Bootstrapping the cluster mysqld
Starting mysql (via systemctl): mysql.service
Job for mariadb.service failed because the control process exited with error code. See "systemctl status mariadb.service" and "journalctl -xe" for details.
$ systemctl status mariadb.service
[ERROR] WSREP: gcs/src/gcs_core.cpp:gcs_core_open():208: Failed to open backend connection: -110 (Connection timed out)
[ERROR] WSREP: gcs/src/gcs.cpp:gcs_open():1379: Failed to open channel 'my_wsrep_cluster' at 'gcomm://192.168.32.251,192.168.32.252,192.168.32...ection timed out)
[ERROR] WSREP: gcs connect failed: Connection timed out
[ERROR] WSREP: wsrep::connect(gcomm://192.168.32.251,192.168.32.252,192.168.32.253) failed: 7
[ERROR] Aborting
systemd[1]: mariadb.service: Main process exited, code=exited, status=1/FAILURE
systemd[1]: Failed to start MariaDB database server.
systemd[1]: mariadb.service: Unit entered failed state.
systemd[1]: mariadb.service: Failed with result 'exit-code'.
Why "Galera Cluster" not Start?
How To checking "Connection Time Out"?
There is a Error in your config. After gcom you only use one : like:
wsrep_cluster_address=gcomm://192.168.159.132,192.168.159.135,192.168.159.136
their is an error:
use format as below:
wsrep_cluster_address="gcomm://first_ip,second_ip,third_ip"
The galera configuration looks fine. But you have to provide an extra argument while bootstrapping the first node. Try this:
mysqld --wsrep-new-cluster
For the first node wsrep_cluster_address can be empty. For next nodes you have to provide at least one ip address that is already a part of cluster. But it's a good practice to provide the list of all the nodes that you are going to use. It wont give you any error for mentioning a node in cluster-address which is not present in the cluster yet. So you can use, wsrep_cluster_address=gcomm://192.168.159.132,192.168.159.135,192.168.159.136 for every node.
You are getting "connection timed out" because the node is trying to connect to the other nodes listed in wsrep_cluster_address, which aren't online as this is the very first node in the cluster. So, during bootstrap you should start the first node with empty wsrep_cluster_address :.wsrep_cluster_address='gcomm://'.
Related
I have a galera cluster with 3 nodes in QA environement.. There was a abrupt shut down of the nodes and I restarted and bootstrapped the first nodewhich is working fine. The second node when I try to start gives the error , "rsyncd[30958]: unknown module 'rsync_sst-undo_dir' tried from XXX" .
In mysql log :
[Warning] WSREP: 0.0 : State transfer to 1.0 (x) failed: -255 (Unknown error 255) [ERROR] WSREP: /home/buildbot/buildbot/build/gcs/src/gcs_group.cpp:gcs_group_handle_join_msg():1207: Will never receive state. Need to abort.
Not sure what causes this error,
rsyncd[30958]: unknown module 'rsync_sst-undo_dir' tried from XXX systemd[1]: mariadb.service: main process exited, code=killed, status=6/ABRT unknown module 'rsync_sst-undo_dir' "
Any pointers would be very helpful .
Thanks
Any pointers would be very helpful .
I have installed a third party framework fate, and mysql has been installed inside this framework, at the following path: /data/projects/fate/common/mysql/mysql-8.0.28.
I have copied /data/projects/fate/common/mysql/mysql-8.0.28/conf/my.conf to /etc/my.cnf and the content is:
[mysqld]
port=3306
basedir=/data/projects/fate/common/mysql/mysql-8.0.28
datadir=/data/projects/fate/data/mysql
socket=/data/projects/fate/common/mysql/mysql-8.0.28/run/mysql.sock
max_connections=10000
max_connect_errors=10
character-set-server=utf8
default-storage-engine=INNODB
default_authentication_plugin=mysql_native_password
mysqlx=0
[mysql]
default-character-set=utf8
[client]
port=3306
default-character-set=utf8
socket=/data/projects/fate/common/mysql/mysql-8.0.28/run/mysql.sock
[mysqld_safe]
log-error=/data/projects/fate/common/mysql/mysql-8.0.28/logs/mysqld.log
pid-file=/data/projects/fate/common/mysql/mysql-8.0.28/run/mysqld.pid
but when I try to start mysqld with systemctl start mysqld, I get:
Job for mysqld.service failed because the control process exited with error code. See "systemctl status mysqld.service" and "journalctl -xe" for details.
after systemctl status mysqld.service
● mysqld.service - LSB: start and stop MySQL
Loaded: loaded (/etc/rc.d/init.d/mysqld; bad; vendor preset: disabled)
Active: failed (Result: exit-code) since Sat 2022-05-14 16:27:43 CST; 13s ago
Docs: man:systemd-sysv-generator(8)
Process: 20483 ExecStart=/etc/rc.d/init.d/mysqld start (code=exited, status=1/FAILURE)
May 14 16:27:41 vm-0-1-centos systemd[1]: Starting LSB: start and stop MySQL...
May 14 16:27:43 vm-0-1-centos mysqld[20483]: Starting MySQL..The server quit without updating PID file (/data/projects/fate/data/mysql/vm-0-1-centos.pid).[FAILED]
May 14 16:27:43 vm-0-1-centos systemd[1]: mysqld.service: control process exited, code=exited status=1
May 14 16:27:43 vm-0-1-centos systemd[1]: Failed to start LSB: start and stop MySQL.
May 14 16:27:43 vm-0-1-centos systemd[1]: Unit mysqld.service entered failed state.
May 14 16:27:43 vm-0-1-centos systemd[1]: mysqld.service failed.
or when using service mysqld start, the problem is
Starting MySQL.The server quit without updating PID file (/data/projects/fate/data/mysql/vm-0-1-centos.pid).[FAILED]
I have tried a lot of solution from other questions, and I'm stuck and upset now.
I don't want to reinstall mysql again because I'm afraid that another mysql may affect the third party framework fate working.
You can try checking:
MySQL error log file
Privileges for MySQL catalogue
i tried to start the mysql service but it's not work.
while i use this command
service start mysql
this error happens!
The service command supports only basic LSB actions (start, stop, restart, try-restart, reload, force-reload, status). For other actions, please try to use systemctl.
but when i tried to use systemctl it's still not work
[root#master-1 ~]# systemctl start mysql
Failed to start mysql.service: Unit not found.
[root#master-1 ~]# systemctl start mysqld
Failed to start mysqld.service: Unit not found.
[root#master-1 ~]#
this is the result for systemctl status mysqld mysql
● mysqld.service
Loaded: not-found (Reason: No such file or directory)
Active: failed (Result: exit-code) since Mon 2021-07-12 10:01:13 WIB; 1 weeks 1 days ago
Main PID: 872 (code=exited, status=1/FAILURE)
Status: "Data Dictionary upgrade from MySQL 5.7 in progress"
Warning: Journal has been rotated since unit was started. Log output is incomplete or unavailable.
● mysql.service
Loaded: not-found (Reason: No such file or directory)
Active: failed (Result: exit-code) since Fri 2021-07-16 17:13:43 WIB; 3 days ago
Warning: Journal has been rotated since unit was started. Log output is incomplete or unavailable.
i still don't know what happen
Hello systemctl works in Ubuntu Os, Not in CentOS.
please use [/etc/init.d/mysqld restart, /etc/init.d/mysqld start, /etc/init.d/mysqld stop] instead of systemctl start mysql
I have a problem to move the default datadir of Maria DB to another partition, it appears to be very common but i tried everything I can without luck.
Mysql is installed as Mariadb 10.1.26 with the default debian package (apt-get install mysql-server) on a Debian 9.1 (stretch) server, mysqld -v returns mysqld 10.1.26-MariaDB-0+deb9u1
Default_mysql_datadir : /var/lib/mysql
New_mysql_datadir : /home/mysql
/var/lib/mysql is mounted to "/" (/dev/md3)
/home/mysql is mounted to "/home" (/dev/md4)
What I've tried
# systemctl stop mysql
# mv /var/lib/mysql /home
Change datadir in /etc/mysql/my.cnf
# datadir = /home/mysql
Check if the rights/permissions are ok
# chown -R mysql.mysql /home/mysql
apparmor is NOT installed nor running on the system though the /etc/apparmor.d/usr.sbin.mysqld file is existing with the following rules :
/home/mysql/ r,
/home/mysql/** rwk,
I even tried to create and empty /var/lib/mysq folder refering to this bug
But when I start I always get the same error :
# systemctl start mysql
[Warning] Can't create test file /home/mysql/<user>.lower-test
#007/usr/sbin/mysqld: Can't change dir to '/home/mysql/' (Errcode: 13 "Permission denied") 2017-09-07 0:16:59 140119808397888 [ERROR] Aborting
mariadb.service: Main process exited, code=exited, status=1/FAILURE
Failed to start MariaDB database server.
mariadb.service: Unit entered failed state.
mariadb.service: Failed with result 'exit-code'.
Any suggestion ?
Thanks
Services started by Systemd have additional filesystem restrictions imposed by systemd.
It should be possible to provide values to systemd [Service] directives ProtectHome= and/or ProtectSystem= and/or ReadWritePaths= to resolve this issue.
I have similar problem:
When I start the mysql services a message is shown:
Job for mariadb.service failed because the control process exited with error code.
See "systemctl status mariadb.service" and "journalctl -xe" for details.
if I change the datadir from /etc/mysql/my.cnf again as default; np
I am trying to start mariadb with systemctl start mariadb also tried using sudo along.
This is what it says
Job for mariadb.service failed because the control process exited with
error code. See "systemctl status mariadb.service" and "journalctl
-xe" for details.
I saw this at many places but nothing helped.
It fails, I removed, installed again, nothing happened.
This is a part of /var/log/messages
Jun 17 18:03:09 controller systemd: Starting MariaDB 10.1 database
server...
Jun 17 18:03:09 controller mysqld: 2016-06-17 18:03:09 140477178509440
[Note] /usr/libexec/mysqld (mysqld 10.1.12-MariaDB) starting as process 120408 ...
Jun 17 18:03:12 controller systemd: mariadb.service: main process exited, code=exited, status=1/FAILURE
Jun 17 18:04:13 controller systemd: mariadb.service: control process exited, code=exited status=3
Jun 17 18:04:13 controller systemd: Failed to start MariaDB 10.1 database server.
Jun 17 18:04:13 controller systemd: Unit mariadb.service entered failed state.
Jun 17 18:04:13 controller systemd: mariadb.service failed.
I am really new to CentOS and mariadb, so I don't know how to proceed.
EDIT
The mariadb.log says
2016-06-17 19:24:39 140652810123392 [Note] Server socket created on IP: '::'.
2016-06-17 19:24:39 140652810123392 [ERROR] Can't start server: Bind on TCP/IP port. Got error: 98: Address already in use
2016-06-17 19:24:39 140652810123392 [ERROR] Do you already have another mysqld server running on port: 3306 ? 2016-06-17 19:24:39 140652810123392 [ERROR] Aborting
This is my my.cnf
#
# This group is read both both by the client and the server
# use it for options that affect everything
#
[client-server]
#
# This group is read by the server
#
[mysqld]
port=5555
bind-address = 10.23.77.68
default-storage-engine = innodb
innodb_file_per_table
collation-server = utf8_general_ci
init-connect = 'SET NAMES utf8'
character-set-server = utf8
# Disabling symbolic-links is recommended to prevent assorted security risks
symbolic-links=0
#
# include all files from the config directory
#
!includedir /etc/my.cnf.d
I tried adding a line in my.cnf
port=5555
Didn't help, mariadb.log says the same thing as I have mentioned earlier.
I solved as follows:
After installing
Run: > mysql_install_db --user=mysql --basedir=/usr --datadir=/var/lib/
Then: >mysql_secure_installation
And then: systemctl start mariadb
With this this, I can resolved.
Just remove following files at location
/var/lib/mysql
ib_logfile0
ib_logfile1
fuser -k 3306/tcp will solve the probem.
-k is to Kill processes accessing the file.