MySQL集群
1，将6.0版本的mysql集群软件上传到Linux或是Solaris上，解压
1>，为了方便调用将其改名为mysql，并且放于/usr/local/下
2>，创建连接文件，进入/usr/local/下
ln -s ..../mysql mysql
2，创建组，添加用户
groupadd mysql
useradd -g mysql mysql
3，权限的修改
cd /usr/local/mysql
chown -Rhf mysql .
chgrp -Rhf mysql .
执行脚本，创建数据库
scritps/mysql_install_db --user=mysql &
chown -Rhf root .
chown -Rhf mysql .
chown -R mysql data
chgrp -R mysql .
cp support-file/mysql.server /etc/rc.d/ini.d/mysqld
chmod +x /etc/rc.d/init.d/mysqld
<chkconfig - add mysqld>
验证启动数据库
启动失败可以尝试：
/etc/rc.d/init.d/mysqld stop/start
service mysqld restart
如果还是失败
ln -s /var/lib/mysql/mysql.sock /tmp/mysql.sock
bin/mysqld_safe --user=mysql &
验证成功后，停止mysql，停止进程
ps -ef | grep mysql<ndb>
kill -9 进程标号
4，创建配置文件
vi my.cnf
[mysqld]
default-storage-engine=ndbcluster
ndbcluster
ndb-connectstring=10.85.0.90,10.85.0.80
[ndbd]
connect-string=10.85.0.90,10.85.0.80
[ndb_mgm]
connect-string=10.85.0.90,10.85.0.80
[ndb_mgmd]
config-file=/usr/local/mysql/config.ini
[mysql_cluster]
ndb-connectstring=10.85.0.90,10.85.0.80
5，创建启动文件
vi config.ini
[ndbd default]
NoOfReplicas= 2
MaxNoOfConcurrentOperations= 10000
DataMemory= 80M
IndexMemory= 24M
TimeBetweenWatchDogCheck= 30000
DataDir= /var/lib/mysql-cluster
MaxNoOfOrderedIndexes= 512
StartPartialTimeout=100
StartPartitionedTimeout=100
ArbitrationTimeout=5000
TransactionDeadlockDetectionTimeout=5000
HeartbeatIntervalDbDb=5000
StopOnError=0
[ndb_mgmd default]
DataDir= /var/lib/mysql-cluster
[ndb_mgmd]
Id=1
HostName= 10.85.0.90
[ndb_mgmd]
Id=2
Ho
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in _sql varchar(1000),
in _order varchar(1000),
in _pagecurrent int,
in _pagesize int
)
BEGIN
if _pagesize<=1 then
set _pagesize=20;
end if;
if _pagecurrent < 1 then
set _pagecurrent = 1;
&n ......
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DELIMITER //
#获取流水号
DROP PROCEDURE IF EXISTS get_sid;
CREATE PROCEDURE get_sid(para_domain VARCHAR(20), out para_sid BIGINT UNSIGNED)
BEGIN
START TRANSACTION;
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SELECT sID INTO para_sid from t_sid WHERE cDomain=para_domain;
......
格式：grant [PRIVILEGES] on [databaseName.tableName] to [userName]@[host] identified by [password] with grant option;
eg1: grant select on mysql.user to wqh@localhost
eg2:GRANT SELECT,INSERT,UPDATE,DELETE,CREATE ......
1、编辑MySQL(和PHP搭配之最佳组合)配置文件：
windows环境中：%MySQL(和PHP搭配之最佳组合)_installdir%\my.ini //一般在MySQL(和PHP搭配之最佳组合)安装目录下有my.ini即MySQL(和PHP搭配之最佳组合)的配置文件。
linux环境中：/etc/my.cnf
在[MySQL(和PHP搭配之最佳组合)d]配置段添加如下一行：
skip-grant-tables
......
MySql版本信息的查询：
1、通过mysql -V命令查询
C:\mysql\bin>mysql -V
mysql Ver 12.22 Distrib 4.0.18, for Win95/Win98 (i32)
2、通过mysql模式下的status命令查看状态
mysql> status
--------------
mysql Ver 12.22 Distrib 4.0.18, for Win95/Win98 (i32)
Connection id: &nbs ......
