MySQL数据库源码编译之后，启动失败具体报错日志如下:
2018-04-14 19:39:46 67547 [Note] Plugin 'FEDERATED' is disabled. /usr/local/mysql/bin/mysqld: Table 'mysql.plugin' doesn't exist 2018-04-14 19:39:46 67547 [ERROR] Can't open the mysql.plugin table. Please run mysql_upgrade to create it. 2018-04-14 19:39:46 67547 [Note] InnoDB: Using atomics to ref count buffer pool pages 2018-04-14 19:39:46 67547 [Note] InnoDB: The InnoDB memory heap is disabled 2018-04-14 19:39:46 67547 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins 2018-04-14 19:39:46 67547 [Note] InnoDB: Memory barrier is not used 2018-04-14 19:39:46 67547 [Note] InnoDB: Compressed tables use zlib 1.2.3 2018-04-14 19:39:46 67547 [Note] InnoDB: Using CPU crc32 instructions 2018-04-14 19:39:46 67547 [Note] InnoDB: Initializing buffer pool, size = 128.0M 2018-04-14 19:39:46 67547 [Note] InnoDB: Completed initialization of buffer pool 2018-04-14 19:39:46 67547 [Note] InnoDB: Highest supported file format is Barracuda. 2018-04-14 19:39:46 67547 [Note] InnoDB: Log scan progressed past the checkpoint lsn 49463 2018-04-14 19:39:46 67547 [Note] InnoDB: Database was not shutdown normally! 2018-04-14 19:39:46 67547 [Note] InnoDB: Starting crash recovery. 2018-04-14 19:39:46 67547 [Note] InnoDB: Reading tablespace information from the .ibd files... 2018-04-14 19:39:46 67547 [Note] InnoDB: Restoring possible half-written data pages 2018-04-14 19:39:46 67547 [Note] InnoDB: from the doublewrite buffer... InnoDB: Doing recovery: scanned up to log sequence number 1600607 2018-04-14 19:39:46 67547 [Note] InnoDB: Starting an apply batch of log records to the database... InnoDB: Progress in percent: 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 InnoDB: Apply batch completed 2018-04-14 19:39:46 67547 [Note] InnoDB: 128 rollback segment(s) are active. 2018-04-14 19:39:46 67547 [Note] InnoDB: Waiting for purge to start 2018-04-14 19:39:46 67547 [Note] InnoDB: 5.6.39 started; log sequence number 1600607 2018-04-14 19:39:46 67547 [Note] Server hostname (bind-address): '*'; port: 3306 2018-04-14 19:39:46 67547 [Note] IPv6 is available. 2018-04-14 19:39:46 67547 [Note] - '::' resolves to '::'; 2018-04-14 19:39:46 67547 [Note] Server socket created on IP: '::'. 2018-04-14 19:39:46 67547 [ERROR] Fatal error: Can't open and lock privilege tables: Table 'mysql.user' doesn't exist
解决方法： 重新初始化数据库即可 shell> /usr/local/mysql/scripts/mysql_install_db --user=mysql --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data`
之后数据库启动成功
shell> /etc/init.d/mysqld start Starting MySQL. SUCCESS!
设置root用户登陆密码：
shell> mysqladmin -uroot -p password '123456' Enter password:【默认密码为空直接回车即可】 Warning: Using a password on the command line interface can be insecur
