MySQL启动报错解决一例

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由于项目需要不得不折腾MySQL，RedHat Linux上安装了最新的MySQL 5.6启动报错如下：[root@tserver mysql]# /etc/init.d/mysql st

由于项目需要不得不折腾MySQL，，RedHat Linux上安装了最新的MySQL 5.6启动报错如下：

[root@tserver mysql]# /etc/init.d/mysql start
Starting MySQL.The server quit without updating PID file (/var/lib/mysql/tserver.pid).[FAILED]

检查报错信息tserver.err。

cat tserver.err

140121 06:03:29 mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql
2014-01-21 06:03:29 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2014-01-21 06:03:29 14964 [Note] Plugin 'FEDERATED' is disabled.
2014-01-21 06:03:29 14964 [Note] InnoDB: The InnoDB memory heap is disabled
2014-01-21 06:03:29 14964 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2014-01-21 06:03:29 14964 [Note] InnoDB: Compressed tables use zlib 1.2.3
2014-01-21 06:03:29 14964 [Note] InnoDB: Using Linux native AIO
2014-01-21 06:03:29 14964 [Note] InnoDB: Using CPU crc32 instructions
2014-01-21 06:03:29 14964 [Note] InnoDB: Initializing buffer pool, size = 128.0M
2014-01-21 06:03:29 14964 [Note] InnoDB: Completed initialization of buffer pool
2014-01-21 06:03:29 14964 [ERROR] InnoDB: auto-extending data file ./ibdata1 is of a different size 640 pages (rounded down to MB) than specified in the .cnf file: initial 768 pages, max 0 (relevant if non-zero) pages!
2014-01-21 06:03:29 14964 [ERROR] InnoDB: Could not open or create the system tablespace. If you tried to add new data files to the system tablespace, and it failed here, you should now edit innodb_data_file_path in my.cnf back to what it was, and remove the new ibdata files InnoDB created in this failed attempt. InnoDB only wrote those files full of zeros, but did not yet use them in any way. But be careful: do not remove old data files which contain your precious data!
2014-01-21 06:03:29 14964 [ERROR] Plugin 'InnoDB' init function returned error.
2014-01-21 06:03:29 14964 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed.
2014-01-21 06:03:29 14964 [ERROR] Unknown/unsupported storage engine: InnoDB
2014-01-21 06:03:29 14964 [ERROR] Aborting

2014-01-21 06:03:29 14964 [Note] Binlog end
2014-01-21 06:03:29 14964 [Note] Shutting down plugin 'partition'
2014-01-21 06:03:29 14964 [Note] Shutting down plugin 'INNODB_SYS_DATAFILES'
2014-01-21 06:03:29 14964 [Note] Shutting down plugin 'INNODB_SYS_TABLESPACES'
2014-01-21 06:03:29 14964 [Note] Shutting down plugin 'INNODB_SYS_FOREIGN_COLS'
2014-01-21 06:03:29 14964 [Note] Shutting down plugin 'INNODB_SYS_FOREIGN'
2014-01-21 06:03:29 14964 [Note] Shutting down plugin 'INNODB_SYS_FIELDS'
2014-01-21 06:03:29 14964 [Note] Shutting down plugin 'INNODB_SYS_COLUMNS'
2014-01-21 06:03:29 14964 [Note] Shutting down plugin 'INNODB_SYS_INDEXES'
2014-01-21 06:03:29 14964 [Note] Shutting down plugin 'INNODB_SYS_TABLESTATS'
2014-01-21 06:03:29 14964 [Note] Shutting down plugin 'INNODB_SYS_TABLES'
2014-01-21 06:03:29 14964 [Note] Shutting down plugin 'INNODB_FT_INDEX_TABLE'
2014-01-21 06:03:29 14964 [Note] Shutting down plugin 'INNODB_FT_INDEX_CACHE'
2014-01-21 06:03:29 14964 [Note] Shutting down plugin 'INNODB_FT_CONFIG'
2014-01-21 06:03:29 14964 [Note] Shutting down plugin 'INNODB_FT_BEING_DELETED'
2014-01-21 06:03:29 14964 [Note] Shutting down plugin 'INNODB_FT_DELETED'
2014-01-21 06:03:29 14964 [Note] Shutting down plugin 'INNODB_FT_DEFAULT_STOPWORD'
2014-01-21 06:03:29 14964 [Note] Shutting down plugin 'INNODB_METRICS'
2014-01-21 06:03:29 14964 [Note] Shutting down plugin 'INNODB_BUFFER_POOL_STATS'
2014-01-21 06:03:29 14964 [Note] Shutting down plugin 'INNODB_BUFFER_PAGE_LRU'
2014-01-21 06:03:29 14964 [Note] Shutting down plugin 'INNODB_BUFFER_PAGE'
2014-01-21 06:03:29 14964 [Note] Shutting down plugin 'INNODB_CMP_PER_INDEX_RESET'
2014-01-21 06:03:29 14964 [Note] Shutting down plugin 'INNODB_CMP_PER_INDEX'
2014-01-21 06:03:29 14964 [Note] Shutting down plugin 'INNODB_CMPMEM_RESET'
2014-01-21 06:03:29 14964 [Note] Shutting down plugin 'INNODB_CMPMEM'
2014-01-21 06:03:29 14964 [Note] Shutting down plugin 'INNODB_CMP_RESET'
2014-01-21 06:03:29 14964 [Note] Shutting down plugin 'INNODB_CMP'
2014-01-21 06:03:29 14964 [Note] Shutting down plugin 'INNODB_LOCK_WAITS'
2014-01-21 06:03:29 14964 [Note] Shutting down plugin 'INNODB_LOCKS'
2014-01-21 06:03:29 14964 [Note] Shutting down plugin 'INNODB_TRX'
2014-01-21 06:03:29 14964 [Note] Shutting down plugin 'PERFORMANCE_SCHEMA'
2014-01-21 06:03:29 14964 [Note] Shutting down plugin 'BLACKHOLE'
2014-01-21 06:03:29 14964 [Note] Shutting down plugin 'ARCHIVE'
2014-01-21 06:03:29 14964 [Note] Shutting down plugin 'CSV'
2014-01-21 06:03:29 14964 [Note] Shutting down plugin 'MEMORY'
2014-01-21 06:03:29 14964 [Note] Shutting down plugin 'MRG_MYISAM'
2014-01-21 06:03:29 14964 [Note] Shutting down plugin 'MyISAM'
2014-01-21 06:03:29 14964 [Note] Shutting down plugin 'sha256_password'
2014-01-21 06:03:29 14964 [Note] Shutting down plugin 'mysql_old_password'
2014-01-21 06:03:29 14964 [Note] Shutting down plugin 'mysql_native_password'
2014-01-21 06:03:29 14964 [Note] Shutting down plugin 'binlog'
2014-01-21 06:03:29 14964 [Note] /usr/sbin/mysqld: Shutdown complete

检查发现mysql的目录下有如下文件：

[root@tserver mysql]# ls
ibdata1 ib_logfile0 ib_logfile1 mysql RPM_UPGRADE_HISTORY RPM_UPGRADE_MARKER-LAST test tserver.err

删除了如下三个文件：

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