Couldn't start mysql server. It only worked after reboot.
Hi, here's what happened Yesterday around 9am (London time):
150217 09:04:29 mysqldsafe Starting mysqld daemon with databases from /var/lib/mysql
150217 9:04:29 [Warning] Using unique option prefix keybuffer instead of keybuffersize is deprecated and will be removed in a future release. Please use the full name instead.
150217 9:04:29 [Warning] Using unique option prefix myisam-recover instead of myisam-recover-options is deprecated and will be removed in a future release. Please use the full name instead.
150217 9:04:29 [Note] Plugin 'FEDERATED' is disabled.
150217 9:04:29 InnoDB: The InnoDB memory heap is disabled
150217 9:04:29 InnoDB: Mutexes and rw_locks use GCC atomic builtins
150217 9:04:29 InnoDB: Compressed tables use zlib 1.2.8
150217 9:04:29 InnoDB: Using Linux native AIO
150217 9:04:29 InnoDB: Initializing buffer pool, size = 128.0M
InnoDB: mmap(137363456 bytes) failed; errno 12
150217 9:04:29 InnoDB: Completed initialization of buffer pool
150217 9:04:29 InnoDB: Fatal error: cannot allocate memory for the buffer pool
150217 9:04:29 [ERROR] Plugin 'InnoDB' init function returned error.
150217 9:04:29 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed.
150217 9:04:29 [ERROR] Unknown/unsupported storage engine: InnoDB
150217 9:04:29 [ERROR] Aborting
150217 9:04:29 [Note] /usr/sbin/mysqld: Shutdown complete
150217 09:04:29 mysqld_safe mysqld from pid file /var/run/mysqld/mysqld.pid ended
Does anyone know why this could happen and what would be the fix for it (other than reboot)?