CentOS 5.8
我運行了 yum update 並更新了 MySQL，但現在它無法啟動。關於什麼會導致這個問題/我該如何解決有什麼想法嗎？
我在日誌中得到以下內容：
121017 15:58:39 mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql
121017 15:58:40 [Note] Plugin 'FEDERATED' is disabled.
121017 15:58:40 InnoDB: The InnoDB memory heap is disabled
121017 15:58:40 InnoDB: Mutexes and rw_locks use GCC atomic builtins
121017 15:58:40 InnoDB: Compressed tables use zlib 1.2.3
121017 15:58:40 InnoDB: Using Linux native AIO
121017 15:58:40 InnoDB: Error: Linux Native AIO is not supported on tmpdir.
InnoDB: You can either move tmpdir to a file system that supports native AIO
InnoDB: or you can set innodb_use_native_aio to FALSE to avoid this message.
121017 15:58:40 InnoDB: Error: Linux Native AIO check on tmpdir returned error[22]
121017 15:58:40 InnoDB: Warning: Linux Native AIO disabled.
121017 15:58:40 InnoDB: Initializing buffer pool, size = 512.0M
121017 15:58:40 InnoDB: Completed initialization of buffer pool
121017 15:58:40 InnoDB: highest supported file format is Barracuda.
121017 15:58:41 InnoDB: Waiting for the background threads to start
121017 15:58:42 InnoDB: 1.1.8 started; log sequence number 360826692325
121017 15:58:42 [ERROR] /usr/libexec/mysqld: unknown variable 'record_buffer=2M'
121017 15:58:42 [ERROR] Aborting
121017 15:58:42 InnoDB: Starting shutdown...
121017 15:58:42 InnoDB: Shutdown completed; log sequence number 360826692325
121017 15:58:43 [Note] /usr/libexec/mysqld: Shutdown complete
121017 15:58:43 mysqld_safe mysqld from pid file /var/run/mysqld/mysqld.pid ended
答案1
record_buffer=2M從 my.cnf 檔案中刪除並重試。
答案2
你升級到MySQL 5.5了嗎？該變數record_buffer已被棄用。
Removed Features
The record_buffer system variable (use read_buffer_size).
該變數現在稱為讀緩衝區大小。