阅读《mysql核心内幕》，启动mysql问题

从mysql官网下载mysql5.1.34版本，进行编译，编译成功后，mysqld_safe 无法启动，使用下面的命令进行初始化.

./mysql_install_db --user=mysql --datadir=/home/ss/re0/mysql/isomysql/mysql/data/

使用下面的命令开启mysql服务

/home/ss/re0/mysql/isomysql/mysql/bin/mysqld_safe &

另外，

mysql5.1默认编译是不会有innodb引擎，通过网上查询，有两种方法可以实现。

１　编译时指定 --with-plugin-innobase 

 2 　启动完成后，使用命令加载　install plugin innodb soname 'ha_innodb.so'

　　查看引擎，show engines \G

mysql> show engines \G
*************************** 1. row ***************************
      Engine: CSV
     Support: YES
     Comment: CSV storage engine
Transactions: NO
          XA: NO
  Savepoints: NO
*************************** 2. row ***************************
      Engine: InnoDB
     Support: YES
     Comment: Supports transactions, row-level locking, and foreign keys
Transactions: YES
          XA: YES
  Savepoints: YES
*************************** 3. row ***************************
      Engine: MEMORY
     Support: YES
     Comment: Hash based, stored in memory, useful for temporary tables
Transactions: NO
          XA: NO
  Savepoints: NO
*************************** 4. row ***************************
      Engine: MyISAM
     Support: DEFAULT
     Comment: Default engine as of MySQL 3.23 with great performance
Transactions: NO
          XA: NO
  Savepoints: NO
*************************** 5. row ***************************
      Engine: MRG_MYISAM
     Support: YES
     Comment: Collection of identical MyISAM tables
Transactions: NO
          XA: NO
  Savepoints: NO
5 rows in set (0.00 sec)


mysql>