--------+---------+---------+-------+------+-------+
1 row in set (0.00 sec)
在另外的sql节点访问：
[root@rh6 bin]#./mysql -u root -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 3
Server version: 5.5.27-ndb-7.2.8 Source distribution
Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| ndb_3_fs |
| ndbinfo |
| performance_schema |
| test |
+--------------------+
6 rows in set (0.08 sec)
mysql> use test;
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A
Database changed
mysql> show tables;
+----------------+
| Tables_in_test |
+----------------+
| t1 |
+----------------+
1 row in set (0.03 sec)
----可以看到，在另外的node上有t1表
mysql> select * from t1;
+----+-------+
| id | name |
+----+-------+
| 30 | jerry |
| 10 | tom |
| 20 | rose |
+----+-------+
3 rows in set (0.05 sec)
mysql> explain select * from t1 where id =10;
+----+-------------+-------+--------+---------------+---------+---------+-------+------+-------+
| id | select_type | table | type | possible_keys | key | key_len | ref | rows | Extra |
+----+-------------+-------+--------+---------------+---------+---------+-------+------+-------+
| 1 | SIMPLE | t1 | eq_ref | PRIMARY | PRIMARY | 4 | const | 1 | |
+----+-------------+-------+--------+---------------+---------+---------+-------+------+-------+
1 row in set (0.07 sec)
在当前node上插入数据：
mysql> insert into t1 values (40,'john');
Query OK, 1 row affected (0.01 sec)
mysql> insert into t1 values (50,'ellen');
Query OK, 1 row affected (0.02 sec)
mysql> select * from t1;
+----+-------+
| id | name |
+----+-------+
| 40 | john |
| 30 | jerry |
| 10 | tom |
| 20 | rose |
| 50 | ellen |
+----+-------+
5 rows in set (0.00 sec)
另一个节点查询：
[root@mysrv bin]# ./mysql -u root -p Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 3
Server version: 5.5.27-ndb-7.2.8 Source distribution
Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> use test;
Database changed
mysql> select * from t1;
+----+-------+
| id | name |
+----+-------+
| 10 | tom |
| 20 | rose |
| 50 | ellen |
| 40 | john |
| 30 | jerry |
+----+-------+
5 rows in set (0.01 sec)
---可以访问新插入的数据
测试2：关闭一个节点，在另外的节点创建table；被关闭节点启动后，自动同步tables
关闭node2（rh6）：
[root@rh6 bin]#./mysqladmin -u root -p shutdown
Enter password:
150807 10:44:46 mysqld_safe mysqld from pid file /data/ndbdata/rh6.cuug.net.pid ended
[1]+ Done ./mysqld_safe --user=mysql
[root@rh6 bin]#netstat -an |grep :3306
在node1 上建立新的table：
[root@mysrv bin]# ./mysql -u root -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 4
Server version: 5.5.27-ndb-7.2.8 Source distribution
Copyright (c) 2000, 2011, Oracle and/or its affiliat |