Merge branch 'Markdown' of https://github.com/mariadb-corporation/MaxScale into Markdown
This commit is contained in:
Mark Riddoch
@ -46,65 +46,46 @@ MySQL 5.5.38 as SQL node2
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Cluster configuration file is /var/lib/mysql-cluster/config.ini, copied on all servers
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Cluster configuration file is /var/lib/mysql-cluster/config.ini, copied on all servers
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[ndbd default]
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[ndbd default]
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NoOfReplicas=2
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DataMemory=60M
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IndexMemory=16M
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NoOfReplicas=2
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[ndb_mgmd]
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hostname=178.62.38.199
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id=21
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datadir=/var/lib/mysql-cluster
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[mysqld]
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hostname=178.62.38.199
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[mysqld]
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hostname=162.243.90.81
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DataMemory=60M
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[ndbd]
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hostname=178.62.38.199
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IndexMemory=16M
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[ndbd]
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hostname=162.243.90.81
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[ndb_mgmd]
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hostname=178.62.38.199
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id=21
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datadir=/var/lib/mysql-cluster
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[mysqld]
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hostname=178.62.38.199
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[mysqld]
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hostname=162.243.90.81
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[ndbd]
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hostname=178.62.38.199
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[ndbd]
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hostname=162.243.90.81
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Note, it’s possible to specify all node ids and datadir as well for each cluster component
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Note, it’s possible to specify all node ids and datadir as well for each cluster component
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Example:
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Example:
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[ndbd]
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[ndbd]
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hostname=162.243.90.81
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hostname=162.243.90.81
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id=43
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datadir=/usr/local/mysql/data
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id=43
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datadir=/usr/local/mysql/data
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and /etc/my.cnf, copied as well in all servers
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and /etc/my.cnf, copied as well in all servers
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[mysqld]
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[mysqld]
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ndbcluster
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ndb-connectstring=178.62.38.199
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innodb_buffer_pool_size=16M
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ndbcluster
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[mysql_cluster]
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ndb-connectstring=178.62.38.199
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ndb-connectstring=178.62.38.199
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innodb_buffer_pool_size=16M
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[mysql_cluster]
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ndb-connectstring=178.62.38.199
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## Startup of MySQL Cluster
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## Startup of MySQL Cluster
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@ -112,19 +93,19 @@ Each cluster node process must be started separately, and on the host where it r
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- On the management host, server1, issue the following command from the system shell to start the management node process:
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- On the management host, server1, issue the following command from the system shell to start the management node process:
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[root@server1 ~]# ndb_mgmd -f /var/lib/mysql-cluster/config.ini
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[root@server1 ~]# ndb_mgmd -f /var/lib/mysql-cluster/config.ini
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- On each of the data node hosts, run this command to start the ndbd process:
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- On each of the data node hosts, run this command to start the ndbd process:
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[root@server1 ~]# ndbd —-initial -—initial-start
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[root@server1 ~]# ndbd —-initial -—initial-start
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[root@server2 ~]# ndbd —-initial -—initial-start
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[root@server2 ~]# ndbd —-initial -—initial-start
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- On each SQL node start the MySQL server process:
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- On each SQL node start the MySQL server process:
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[root@server1 ~]# /etc/init.d/mysql start
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[root@server1 ~]# /etc/init.d/mysql start
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[root@server2 ~]# /etc/init.d/mysql start
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[root@server2 ~]# /etc/init.d/mysql start
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## Check the cluster status
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## Check the cluster status
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@ -146,21 +127,21 @@ Cluster Configuration
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---------------------
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---------------------
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[ndbd(NDB)] 2 node(s)
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[ndbd(NDB)] 2 node(s)
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id=24 @178.62.38.199 (mysql-5.5.38 ndb-7.2.17, Nodegroup: 0, *)
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id=24 @178.62.38.199 (mysql-5.5.38 ndb-7.2.17, Nodegroup: 0, *)
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id=25 @162.243.90.81 (mysql-5.5.38 ndb-7.2.17, Nodegroup: 0)
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[ndb_mgmd(MGM)] 1 node(s)
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id=21 @178.62.38.199 (mysql-5.5.38 ndb-7.2.17)
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[mysqld(API)] 2 node(s)
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id=25 @162.243.90.81 (mysql-5.5.38 ndb-7.2.17, Nodegroup: 0)
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id=22 @178.62.38.199 (mysql-5.5.38 ndb-7.2.17)
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[ndb_mgmd(MGM)] 1 node(s)
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id=23 @162.243.90.81 (mysql-5.5.38 ndb-7.2.17)
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id=21 @178.62.38.199 (mysql-5.5.38 ndb-7.2.17)
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[mysqld(API)] 2 node(s)
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id=22 @178.62.38.199 (mysql-5.5.38 ndb-7.2.17)
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id=23 @162.243.90.81 (mysql-5.5.38 ndb-7.2.17)
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ndb_mgm>
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ndb_mgm>
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||||||
@ -172,135 +153,99 @@ The SQL node is referenced here as [mysqld(API)], which reflects the fact that t
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|||||||
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||||||
[root@server1 ~]# mysql
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[root@server1 ~]# mysql
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||||||
mysql> CREATE TABLE `t1` ( `a` int(11) DEFAULT NULL ) ENGINE=NDBCLUSTER;
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mysql> CREATE TABLE `t1` ( `a` int(11) DEFAULT NULL ) ENGINE=NDBCLUSTER;
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||||||
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||||||
Query OK, 0 rows affected (3.28 sec)
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Query OK, 0 rows affected (3.28 sec)
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||||||
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mysql> show create table t1;
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mysql> show create table t1;
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||||||
+-------+-------------------------------------------------------------------------------------------+
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+------- +-------------------------------------------------------------------------------------------+
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||||||
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| Table | Create Table |
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| Table | Create Table |
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+-------+-------------------------------------------------------------------------------------------+
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+-------+-------------------------------------------------------------------------------------------+
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| t1 | CREATE TABLE `t1` (
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`a` int(11) DEFAULT NULL
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| t1 | CREATE TABLE `t1` (
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) ENGINE=ndbcluster DEFAULT CHARSET=latin1 |
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`a` int(11) DEFAULT NULL
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+-------+-------------------------------------------------------------------------------------------+
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) ENGINE=ndbcluster DEFAULT CHARSET=latin1 |
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1 row in set (0.01 sec)
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+-------+-------------------------------------------------------------------------------------------+
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1 row in set (0.01 sec)
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||||||
- Just add a row in the table:
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- Just add a row in the table:
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||||||
mysql> insert into test.t1 values(11);
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mysql> insert into test.t1 values(11);
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||||||
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||||||
Query OK, 1 row affected (0.15 sec)
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Query OK, 1 row affected (0.15 sec)
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||||||
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- Select the current number of rows:
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- Select the current number of rows:
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mysql> select count(1) from t1;
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mysql> select count(1) from t1;
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+----------+
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+----------+
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| count(1) |
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+----------+
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||||||
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| 1 |
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+----------+
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| count(1) |
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1 row in set (0.07 sec)
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+----------+
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| 1 |
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+----------+
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1 row in set (0.07 sec)
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||||||
- The same from the MySQL client pointing to SQL node on server2
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- The same from the MySQL client pointing to SQL node on server2
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||||||
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||||||
[root@server2 ~]# mysql
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[root@server2 ~]# mysql
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||||||
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||||||
mysql> select count(1) from test.t1;
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mysql> select count(1) from test.t1;
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||||||
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||||||
+----------+
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+----------+
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||||||
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| count(1) |
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||||||
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+----------+
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||||||
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| 1 |
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||||||
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+----------+
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||||||
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||||||
| count(1) |
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1 row in set (0.08 sec)
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||||||
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||||||
+----------+
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||||||
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||||||
| 1 |
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||||||
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||||||
+----------+
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||||||
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||||||
1 row in set (0.08 sec)
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||||||
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||||||
## Configuring MaxScale for connection load balancing of SQL nodes
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## Configuring MaxScale for connection load balancing of SQL nodes
|
||||||
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|
||||||
Add these sections in MaxScale.cnf config file:
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Add these sections in MaxScale.cnf config file:
|
||||||
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|
||||||
[Cluster Service]
|
[Cluster Service]
|
||||||
|
type=service
|
||||||
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router=readconnroute
|
||||||
|
router_options=ndb
|
||||||
|
servers=server1,server2
|
||||||
|
user=test
|
||||||
|
passwd=test
|
||||||
|
version_string=5.5.37-CLUSTER
|
||||||
|
|
||||||
|
[Cluster Listener]
|
||||||
|
type=listener
|
||||||
|
service=Cluster Service
|
||||||
|
protocol=MySQLClient
|
||||||
|
port=4906
|
||||||
|
|
||||||
type=service
|
[NDB Cluster Monitor]
|
||||||
|
type=monitor
|
||||||
|
module=ndbclustermon
|
||||||
|
servers=server1,server2
|
||||||
|
user=monitor
|
||||||
|
passwd=monitor
|
||||||
|
monitor_interval=8000
|
||||||
|
|
||||||
router=readconnroute
|
[server1]
|
||||||
|
|
||||||
router_options=ndb
|
#SQL node1
|
||||||
|
type=server
|
||||||
|
address=127.0.0.1
|
||||||
|
port=3306
|
||||||
|
protocol=MySQLBackend
|
||||||
|
|
||||||
servers=server1,server2
|
[server2]
|
||||||
|
#SQL node2
|
||||||
user=test
|
type=server
|
||||||
|
address=162.243.90.81
|
||||||
passwd=test
|
port=3306
|
||||||
|
protocol=MySQLBackend
|
||||||
version_string=5.5.37-CLUSTER
|
|
||||||
|
|
||||||
[Cluster Listener]
|
|
||||||
|
|
||||||
type=listener
|
|
||||||
|
|
||||||
service=Cluster Service
|
|
||||||
|
|
||||||
protocol=MySQLClient
|
|
||||||
|
|
||||||
port=4906
|
|
||||||
|
|
||||||
[NDB Cluster Monitor]
|
|
||||||
|
|
||||||
type=monitor
|
|
||||||
|
|
||||||
module=ndbclustermon
|
|
||||||
|
|
||||||
servers=server1,server2
|
|
||||||
|
|
||||||
user=monitor
|
|
||||||
|
|
||||||
passwd=monitor
|
|
||||||
|
|
||||||
monitor_interval=8000
|
|
||||||
|
|
||||||
[server1]
|
|
||||||
|
|
||||||
## SQL node1
|
|
||||||
|
|
||||||
type=server
|
|
||||||
|
|
||||||
address=127.0.0.1
|
|
||||||
|
|
||||||
port=3306
|
|
||||||
|
|
||||||
protocol=MySQLBackend
|
|
||||||
|
|
||||||
[server2]
|
|
||||||
|
|
||||||
##SQL node2
|
|
||||||
|
|
||||||
type=server
|
|
||||||
|
|
||||||
address=162.243.90.81
|
|
||||||
|
|
||||||
port=3306
|
|
||||||
|
|
||||||
protocol=MySQLBackend
|
|
||||||
|
|
||||||
Assuming MaxScale is installed in server1, start it
|
Assuming MaxScale is installed in server1, start it
|
||||||
|
|
||||||
@ -315,61 +260,38 @@ MaxScale> show monitors
|
|||||||
Monitor: 0x387b880
|
Monitor: 0x387b880
|
||||||
|
|
||||||
Name: NDB Cluster Monitor
|
Name: NDB Cluster Monitor
|
||||||
|
|
||||||
Monitor running
|
Monitor running
|
||||||
|
|
||||||
Sampling interval: 8000 milliseconds
|
Sampling interval: 8000 milliseconds
|
||||||
|
|
||||||
Monitored servers: 127.0.0.1:3306, 162.243.90.81:3306
|
Monitored servers: 127.0.0.1:3306, 162.243.90.81:3306
|
||||||
|
|
||||||
MaxScale> show servers
|
MaxScale> show servers
|
||||||
|
|
||||||
Server 0x3873b40 (server1)
|
Server 0x3873b40 (server1)
|
||||||
|
|
||||||
Server: 127.0.0.1
|
Server: 127.0.0.1
|
||||||
|
Status: NDB, Running
|
||||||
Status: NDB, Running
|
Protocol: MySQLBackend
|
||||||
|
Port: 3306
|
||||||
Protocol: MySQLBackend
|
Server Version: 5.5.38-ndb-7.2.17-cluster-gpl
|
||||||
|
Node Id: 22
|
||||||
Port: 3306
|
Master Id: -1
|
||||||
|
Repl Depth: 0
|
||||||
Server Version: 5.5.38-ndb-7.2.17-cluster-gpl
|
Number of connections: 0
|
||||||
|
|
||||||
Node Id: 22
|
|
||||||
|
|
||||||
Master Id: -1
|
|
||||||
|
|
||||||
Repl Depth: 0
|
|
||||||
|
|
||||||
Number of connections: 0
|
|
||||||
|
|
||||||
Current no. of conns: 0
|
Current no. of conns: 0
|
||||||
|
|
||||||
Current no. of operations: 0
|
Current no. of operations: 0
|
||||||
|
|
||||||
Server 0x3873a40 (server2)
|
Server 0x3873a40 (server2)
|
||||||
|
|
||||||
Server: 162.243.90.81
|
Server: 162.243.90.81
|
||||||
|
Status: NDB, Running
|
||||||
Status: NDB, Running
|
Protocol: MySQLBackend
|
||||||
|
Port: 3306
|
||||||
Protocol: MySQLBackend
|
Server Version: 5.5.38-ndb-7.2.17-cluster-gpl
|
||||||
|
Node Id: 23
|
||||||
Port: 3306
|
Master Id: -1
|
||||||
|
Repl Depth: 0
|
||||||
Server Version: 5.5.38-ndb-7.2.17-cluster-gpl
|
Number of connections: 0
|
||||||
|
|
||||||
Node Id: 23
|
|
||||||
|
|
||||||
Master Id: -1
|
|
||||||
|
|
||||||
Repl Depth: 0
|
|
||||||
|
|
||||||
Number of connections: 0
|
|
||||||
|
|
||||||
Current no. of conns: 0
|
Current no. of conns: 0
|
||||||
|
|
||||||
Current no. of operations: 0
|
Current no. of operations: 0
|
||||||
|
|
||||||
It’s now possible to run basic tests with the read connection load balancing for the two configured SQL nodes
|
It’s now possible to run basic tests with the read connection load balancing for the two configured SQL nodes
|
||||||
@ -378,27 +300,19 @@ It’s now possible to run basic tests with the read connection load balancing
|
|||||||
|
|
||||||
[root@server1 ~]# mysql -h 127.0.0.1 -P 4906 -u test -ptest -e "SHOW STATUS LIKE 'Ndb_cluster_node_id'"
|
[root@server1 ~]# mysql -h 127.0.0.1 -P 4906 -u test -ptest -e "SHOW STATUS LIKE 'Ndb_cluster_node_id'"
|
||||||
|
|
||||||
+---------------------+-------+
|
+---------------------+-------+
|
||||||
|
| Variable_name | Value |
|
||||||
| Variable_name | Value |
|
+---------------------+-------+
|
||||||
|
| Ndb_cluster_node_id | 23 |
|
||||||
+---------------------+-------+
|
+---------------------+-------+
|
||||||
|
|
||||||
| Ndb_cluster_node_id | 23 |
|
|
||||||
|
|
||||||
+---------------------+-------+
|
|
||||||
|
|
||||||
[root@server1 ~]# mysql -h 127.0.0.1 -P 4906 -u test -ptest -e "SHOW STATUS LIKE 'Ndb_cluster_node_id'"
|
[root@server1 ~]# mysql -h 127.0.0.1 -P 4906 -u test -ptest -e "SHOW STATUS LIKE 'Ndb_cluster_node_id'"
|
||||||
|
|
||||||
+---------------------+-------+
|
+---------------------+-------+
|
||||||
|
| Variable_name | Value |
|
||||||
| Variable_name | Value |
|
+---------------------+-------+
|
||||||
|
| Ndb_cluster_node_id | 22 |
|
||||||
+---------------------+-------+
|
+---------------------+-------+
|
||||||
|
|
||||||
| Ndb_cluster_node_id | 22 |
|
|
||||||
|
|
||||||
+---------------------+-------+
|
|
||||||
|
|
||||||
The MaxScale connection load balancing is working.
|
The MaxScale connection load balancing is working.
|
||||||
|
|
||||||
@ -406,15 +320,11 @@ The MaxScale connection load balancing is working.
|
|||||||
|
|
||||||
[root@server1 ~] mysql -h 127.0.0.1 -P 4906 -utest -ptest -e "SELECT COUNT(1) FROM test.t1"
|
[root@server1 ~] mysql -h 127.0.0.1 -P 4906 -utest -ptest -e "SELECT COUNT(1) FROM test.t1"
|
||||||
|
|
||||||
+----------+
|
+----------+
|
||||||
|
| COUNT(1) |
|
||||||
| COUNT(1) |
|
+----------+
|
||||||
|
| 1 |
|
||||||
+----------+
|
+----------+
|
||||||
|
|
||||||
| 1 |
|
|
||||||
|
|
||||||
+----------+
|
|
||||||
|
|
||||||
(3) test an insert statement
|
(3) test an insert statement
|
||||||
|
|
||||||
@ -424,13 +334,9 @@ mysql -h 127.0.0.1 -P 4906 -utest -ptest -e "INSERT INTO test.t1 VALUES (19)"
|
|||||||
|
|
||||||
[root@server1 ~] mysql -h 127.0.0.1 -P 4906 -utest -ptest -e "SELECT COUNT(1) FROM test.t1"
|
[root@server1 ~] mysql -h 127.0.0.1 -P 4906 -utest -ptest -e "SELECT COUNT(1) FROM test.t1"
|
||||||
|
|
||||||
+----------+
|
+----------+
|
||||||
|
| COUNT(1) |
|
||||||
| COUNT(1) |
|
+----------+
|
||||||
|
| 2 |
|
||||||
+----------+
|
+----------+
|
||||||
|
|
||||||
| 2 |
|
|
||||||
|
|
||||||
+----------+
|
|
||||||
|
|
||||||
|
|||||||
Reference in New Issue
Block a user