我尝试了很多不同的方法，但无论我做什么，运行时我仍然收到此错误sudo mysqld：
2016-12-20 16:52:42 139941442312128 [Note] mysqld (mysqld 10.1.20-MariaDB-1~trusty) starting as process 1433 ...
2016-12-20 16:52:42 139941442312128 [ERROR] mysqld: Can't lock aria control file '/var/lib/mysql/aria_log_control' for exclusive use, error: 11. Will retry for 30 seconds
2016-12-20 16:52:45 139941442312128 [Note] InnoDB: Using mutexes to ref count buffer pool pages
2016-12-20 16:52:45 139941442312128 [Note] InnoDB: The InnoDB memory heap is disabled
2016-12-20 16:52:45 139941442312128 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2016-12-20 16:52:45 139941442312128 [Note] InnoDB: GCC builtin __atomic_thread_fence() is used for memory barrier
2016-12-20 16:52:45 139941442312128 [Note] InnoDB: Compressed tables use zlib 1.2.8
2016-12-20 16:52:45 139941442312128 [Note] InnoDB: Using Linux native AIO
2016-12-20 16:52:45 139941442312128 [Note] InnoDB: Using SSE crc32 instructions
2016-12-20 16:52:45 139941442312128 [Note] InnoDB: Initializing buffer pool, size = 256.0M
2016-12-20 16:52:45 139941442312128 [Note] InnoDB: Completed initialization of buffer pool
2016-12-20 16:52:45 139941442312128 [Note] InnoDB: Highest supported file format is Barracuda.
2016-12-20 16:52:45 139941442312128 [Note] InnoDB: The log sequence numbers 17659355129 and 17659355129 in ibdata files do not match the log sequence number 17659395526 in the ib_logfiles!
2016-12-20 16:52:45 139941442312128 [Note] InnoDB: Database was not shutdown normally!
2016-12-20 16:52:45 139941442312128 [Note] InnoDB: Starting crash recovery.
2016-12-20 16:52:45 139941442312128 [Note] InnoDB: Reading tablespace information from the .ibd files...
2016-12-20 16:52:45 139941442312128 [Note] InnoDB: Restoring possible half-written data pages
2016-12-20 16:52:45 139941442312128 [Note] InnoDB: from the doublewrite buffer...
2016-12-20 16:52:45 139941442312128 [Note] InnoDB: 128 rollback segment(s) are active.
2016-12-20 16:52:45 139941442312128 [Note] InnoDB: Waiting for purge to start
161220 16:52:45 [ERROR] mysqld got signal 11 ;
This could be because you hit a bug. It is also possible that this binary
or one of the libraries it was linked against is corrupt, improperly built,
or misconfigured. This error can also be caused by malfunctioning hardware.
To report this bug, see https://mariadb.com/kb/en/reporting-bugs
We will try our best to scrape up some info that will hopefully help
diagnose the problem, but since we have already crashed,
something is definitely wrong and this may fail.
Server version: 10.1.20-MariaDB-1~trusty
key_buffer_size=134217728
read_buffer_size=2097152
max_used_connections=0
max_threads=102
thread_count=0
It is possible that mysqld could use up to
key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 759834 K bytes of memory
Hope that's ok; if not, decrease some variables in the equation.
Thread pointer: 0x0x0
Attempting backtrace. You can use the following information to find out
where mysqld died. If you see no messages after this, something went
terribly wrong...
stack_bottom = 0x0 thread_stack 0x48400
addr2line: 'mysqld': No such file
mysqld(my_print_stacktrace+0x2e)[0x7f46a7879c2e]
mysqld(handle_fatal_signal+0x305)[0x7f46a739ca95]
/lib/x86_64-linux-gnu/libpthread.so.0(+0x10330)[0x7f46a58ed330]
mysqld(+0x8f3ac8)[0x7f46a76daac8]
mysqld(+0x8c2ba7)[0x7f46a76a9ba7]
mysqld(+0x888529)[0x7f46a766f529]
mysqld(+0x8f0f5e)[0x7f46a76d7f5e]
mysqld(+0x8dedd6)[0x7f46a76c5dd6]
/lib/x86_64-linux-gnu/libpthread.so.0(+0x8184)[0x7f46a58e5184]
/lib/x86_64-linux-gnu/libc.so.6(clone+0x6d)[0x7f46a4e0437d]
The manual page at http://dev.mysql.com/doc/mysql/en/crashing.html contains
information that should help you find out what is causing the crash.
如果我sudo service mysql restart在 MySQL 停止时运行，它会返回以下内容：
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (111 "Connection refused")
任何信息都会有帮助。我不确定哪里出了问题。我也无法访问 mysql 错误日志。即使使用 sudo 也会被拒绝权限。
答案1
正如@Michael Hamption所说，确保 MySQL 尚未运行。只需运行ps -ef|grep mysql[d]或service mysqld status查看它是否仍在运行。
尝试使用以下命令之一来停止它：
- 服务 mysql 停止
- mysqladmin 关闭
- pkill mysql[d]
当您确定 MySQL 服务没有运行时，启动它，然后再次检查日志。