Merge branch 'Markdown' of https://github.com/mariadb-corporation/MaxScale into Markdown
This commit is contained in:
Mark Riddoch
@ -47,35 +47,25 @@ 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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[ndbd default]
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NoOfReplicas=2
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DataMemory=60M
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IndexMemory=16M
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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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@ -83,27 +73,18 @@ Note, it’s possible to specify all node ids and datadir as well for each clust
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Example:
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[ndbd]
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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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and /etc/my.cnf, copied as well in all servers
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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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[mysql_cluster]
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ndb-connectstring=178.62.38.199
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## Startup of MySQL Cluster
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@ -179,13 +160,11 @@ Query OK, 0 rows affected (3.28 sec)
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mysql> show create table t1;
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+------- +-------------------------------------------------------------------------------------------+
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| Table | Create Table |
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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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) ENGINE=ndbcluster DEFAULT CHARSET=latin1 |
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@ -205,13 +184,9 @@ Query OK, 1 row affected (0.15 sec)
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mysql> select count(1) from t1;
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+----------+
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| count(1) |
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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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@ -223,13 +198,9 @@ mysql> select count(1) from t1;
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mysql> select count(1) from test.t1;
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+----------+
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| count(1) |
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+----------+
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| 1 |
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+----------+
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1 row in set (0.08 sec)
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@ -239,67 +210,41 @@ mysql> select count(1) from test.t1;
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Add these sections in MaxScale.cnf config file:
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[Cluster Service]
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type=service
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router=readconnroute
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router_options=ndb
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servers=server1,server2
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user=test
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passwd=test
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version_string=5.5.37-CLUSTER
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[Cluster Listener]
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type=listener
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service=Cluster Service
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protocol=MySQLClient
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port=4906
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[NDB Cluster Monitor]
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type=monitor
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module=ndbclustermon
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servers=server1,server2
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user=monitor
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passwd=monitor
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monitor_interval=8000
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[server1]
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## SQL node1
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#SQL node1
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type=server
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address=127.0.0.1
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port=3306
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protocol=MySQLBackend
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[server2]
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##SQL node2
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#SQL node2
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type=server
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address=162.243.90.81
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port=3306
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protocol=MySQLBackend
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Assuming MaxScale is installed in server1, start it
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@ -315,11 +260,8 @@ MaxScale> show monitors
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Monitor: 0x387b880
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Name: NDB Cluster Monitor
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Monitor running
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Sampling interval: 8000 milliseconds
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Monitored servers: 127.0.0.1:3306, 162.243.90.81:3306
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MaxScale> show servers
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@ -327,49 +269,29 @@ MaxScale> show servers
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Server 0x3873b40 (server1)
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Server: 127.0.0.1
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Status: NDB, Running
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Protocol: MySQLBackend
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Port: 3306
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Server Version: 5.5.38-ndb-7.2.17-cluster-gpl
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Node Id: 22
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Master Id: -1
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Repl Depth: 0
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Number of connections: 0
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Current no. of conns: 0
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Current no. of operations: 0
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Server 0x3873a40 (server2)
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Server: 162.243.90.81
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Status: NDB, Running
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Protocol: MySQLBackend
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Port: 3306
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Server Version: 5.5.38-ndb-7.2.17-cluster-gpl
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Node Id: 23
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Master Id: -1
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Repl Depth: 0
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Number of connections: 0
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Current no. of conns: 0
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Current no. of operations: 0
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It’s now possible to run basic tests with the read connection load balancing for the two configured SQL nodes
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@ -379,25 +301,17 @@ It’s now possible to run basic tests with the read connection load balancing
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[root@server1 ~]# mysql -h 127.0.0.1 -P 4906 -u test -ptest -e "SHOW STATUS LIKE 'Ndb_cluster_node_id'"
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+---------------------+-------+
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| Variable_name | Value |
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+---------------------+-------+
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| Ndb_cluster_node_id | 23 |
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+---------------------+-------+
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[root@server1 ~]# mysql -h 127.0.0.1 -P 4906 -u test -ptest -e "SHOW STATUS LIKE 'Ndb_cluster_node_id'"
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+---------------------+-------+
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| Variable_name | Value |
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+---------------------+-------+
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| Ndb_cluster_node_id | 22 |
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+---------------------+-------+
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The MaxScale connection load balancing is working.
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@ -407,13 +321,9 @@ The MaxScale connection load balancing is working.
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[root@server1 ~] mysql -h 127.0.0.1 -P 4906 -utest -ptest -e "SELECT COUNT(1) FROM test.t1"
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+----------+
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| COUNT(1) |
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+----------+
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| 1 |
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+----------+
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(3) test an insert statement
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@ -425,12 +335,8 @@ mysql -h 127.0.0.1 -P 4906 -utest -ptest -e "INSERT INTO test.t1 VALUES (19)"
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[root@server1 ~] mysql -h 127.0.0.1 -P 4906 -utest -ptest -e "SELECT COUNT(1) FROM test.t1"
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+----------+
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| COUNT(1) |
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+----------+
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| 2 |
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+----------+
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