MariaDB Replikation (Ubuntu)
Noch in Bearbeitung
Server A (10.0.0.157) - Teil 1
Die Datei /etc/mysql/mariadb.conf.d/50-server.cnf editieren
sudo vi /etc/mysql/mariadb.conf.d/50-server.cnf
und folgende Zeilen hinzufügen/anpassen:
log-bin /var/log/mysql/mysql-bin.log server_id=1 replicate-do-db=replicate bind-address=10.0.0.157
Danach den Server neu starten:
sudo systemctl restart mariadb
CREATE USER 'master'@'%' IDENTIFIED BY '<password>'; GRANT REPLICATION SLAVE ON *.* TO 'master'@'%'; FLUSH PRIVILEGES;
SHOW MASTER STATUS;
+------------------+----------+--------------+------------------+ | File | Position | Binlog_Do_DB | Binlog_Ignore_DB | +------------------+----------+--------------+------------------+ | mysql-bin.000001 | 774 | | | +------------------+----------+--------------+------------------+ 1 row in set (0.000 sec)
Server B (10.0.0.167)
Die Datei /etc/mysql/mariadb.conf.d/50-server.cnf editieren
sudo vi /etc/mysql/mariadb.conf.d/50-server.cnf
und folgende Zeilen hinzufügen/anpassen:
log-bin /var/log/mysql/mysql-bin.log server_id=2 replicate-do-db=replicate bind-address=10.0.0.167
Danach den Server neu starten:
sudo systemctl restart mariadb
CREATE USER 'master'@'%' IDENTIFIED BY '<password>'; GRANT REPLICATION SLAVE ON *.* TO 'master'@'%'; FLUSH PRIVILEGES;
STOP SLAVE;
CHANGE MASTER TO MASTER_HOST = '10.0.0.157', MASTER_USER = 'master', MASTER_PASSWORD = '<password>', MASTER_LOG_FILE = 'mysql-bin.000001', MASTER_LOG_POS = 774;
START SLAVE;
SHOW MASTER STATUS;
+------------------+----------+--------------+------------------+ | File | Position | Binlog_Do_DB | Binlog_Ignore_DB | +------------------+----------+--------------+------------------+ | mysql-bin.000001 | 774 | | | +------------------+----------+--------------+------------------+ 1 row in set (0.000 sec)
Server A (10.0.0.157) - Teil 2
mysql -u root -p
STOP SLAVE;
CHANGE MASTER TO MASTER_HOST = '10.0.0.167', MASTER_USER = 'master', MASTER_PASSWORD = '<password>', MASTER_LOG_FILE = 'mysql-bin.000001', MASTER_LOG_POS = 774;
START SLAVE;
Client Status
SHOW SLAVE STATUS\G
Probleme
Slave has read all relay log; waiting for the slave I/O thread to update it
MariaDB [(none)]> show processlist
-> ;
+----+-------------+------------------+----------+-------------+------+-----------------------------------------------------------------------------+------------------+----------+
| Id | User | Host | db | Command | Time | State | Info | Progress |
+----+-------------+------------------+----------+-------------+------+-----------------------------------------------------------------------------+------------------+----------+
| 1 | system user | | NULL | Daemon | NULL | InnoDB purge coordinator | NULL | 0.000 |
| 2 | system user | | NULL | Daemon | NULL | InnoDB purge worker | NULL | 0.000 |
| 3 | system user | | NULL | Daemon | NULL | InnoDB purge worker | NULL | 0.000 |
| 4 | system user | | NULL | Daemon | NULL | InnoDB purge worker | NULL | 0.000 |
| 5 | system user | | NULL | Daemon | NULL | InnoDB shutdown handler | NULL | 0.000 |
| 10 | system user | | NULL | Slave_IO | 833 | Waiting for master to send event | NULL | 0.000 |
| 11 | system user | | NULL | Slave_SQL | 528 | Slave has read all relay log; waiting for the slave I/O thread to update it | NULL | 0.000 |
| 15 | powerdns | 10.0.0.167:51160 | powerdns | Sleep | 833 | | NULL | 0.000 |
| 16 | powerdns | 10.0.0.167:51162 | powerdns | Sleep | 462 | | NULL | 0.000 |
| 17 | powerdns | 10.0.0.167:51164 | powerdns | Sleep | 17 | | NULL | 0.000 |
| 18 | powerdns | 10.0.0.167:51166 | powerdns | Sleep | 832 | | NULL | 0.000 |
| 19 | master | 10.0.0.157:47574 | NULL | Binlog Dump | 823 | Master has sent all binlog to slave; waiting for binlog to be updated | NULL | 0.000 |
| 33 | root | localhost | NULL | Query | 0 | Init | show processlist | 0.000 |
+----+-------------+------------------+----------+-------------+------+-----------------------------------------------------------------------------+------------------+----------+
13 rows in set (0.001 sec)
Links
https://mariadb.com/kb/en/setting-up-replication/
https://mariadb.com/kb/en/standard-replication/
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