[root@localhost mysql]# sysctl -w vm.nr_hugepages=200 vm.nr_hugepages = 200 [root@localhost mysql]# /etc/init.d/mysqld restart Shutting down MySQL. [ OK ] Starting MySQL... [ OK ] [root@localhost mysql]# cat localhost.localdomain.err 140320 15:20:08 [Note] /usr/local/mysql/bin/mysqld: Normal shutdown 140320 15:20:08 [Note] Event Scheduler: Purging the queue. 0 events 140320 15:20:08 InnoDB: Starting shutdown... 140320 15:20:08 InnoDB: Shutdown completed; log sequence number 3629001490 140320 15:20:08 [Note] /usr/local/mysql/bin/mysqld: Shutdown complete 140320 15:20:08 mysqld_safe mysqld from pid file /data/mysql/localhost.localdomain.pid ended 140320 15:20:09 mysqld_safe Starting mysqld daemon with databases from /data/mysql 140320 15:20:09 InnoDB: The InnoDB memory heap is disabled 140320 15:20:09 InnoDB: Mutexes and rw_locks use GCC atomic builtins 140320 15:20:09 InnoDB: Compressed tables use zlib 1.2.3 140320 15:20:09 InnoDB: Initializing buffer pool, size = 256.0M InnoDB: HugeTLB: Warning: Failed to allocate 274726912 bytes. errno 12 InnoDB HugeTLB: Warning: Using conventional memory pool 140320 15:20:09 InnoDB: Completed initialization of buffer pool 140320 15:20:09 InnoDB: highest supported file format is Barracuda. 140320 15:20:11 InnoDB: Waiting for the background threads to start 140320 15:20:12 InnoDB: 1.1.8 started; log sequence number 3629001490 140320 15:20:12 [Note] Server hostname (bind-address): '0.0.0.0'; port: 3306 140320 15:20:12 [Note] - '0.0.0.0' resolves to '0.0.0.0'; 140320 15:20:12 [Note] Server socket created on IP: '0.0.0.0'. 140320 15:20:12 [Note] Event Scheduler: Loaded 0 events 140320 15:20:12 [Note] /usr/local/mysql/bin/mysqld: ready for connections. Version: '5.5.25a-log' socket: '/tmp/mysqld.sock' port: 3306 Source distribution [root@localhost mysql]#
上面出现了如下警告:
InnoDB: HugeTLB: Warning: Failed to allocate 274726912 bytes. errno 12 InnoDB HugeTLB: Warning: Using conventional memory pool