我刚从Debian 8升级到9.
显然,它打破了与数据库相关的一切.我现在无法启动MySQL,错误是：
ERROR 2002 (HY000): Can't connect to local MysqL server through socket '/var/run/MysqLd/MysqLd.sock' (2 "No such file or directory")@H_404_9@服务状态：
systemctl status mariadb.service@H_404_9@● mariadb.service - MariaDB database server Loaded: loaded (/lib/systemd/system/mariadb.service; enabled; vendor preset: enabled) Active: Failed (Result: exit-code) since Fri 2018-02-02 16:55:27 AEST; 35s ago Process: 6859 ExecStartPost=/etc/MysqL/debian-start (code=exited, status=203/EXEC) Process: 6832 ExecStart=/usr/sbin/MysqLd $MysqLD_OPTS $_WSREP_NEW_CLUSTER $_WSREP_START_POSITION (code=exited, status=0/SUCCESS) Process: 6821 ExecStartPre=/bin/sh -c [ ! -e /usr/bin/galera_recovery ] && VAR= || VAR=`/usr/bin/galera_recovery`; [ $? -eq 0 ] && systemctl set-environment _WSREP_START_POSITION=$VAR || exit 1 (code=exited, status=0/SUCCESS) Process: 6815 ExecStartPre=/bin/sh -c systemctl unset-environment _WSREP_START_POSITION (code=exited, status=0/SUCCESS) Process: 6814 ExecStartPre=/usr/bin/install -m 755 -o MysqL -g root -d /var/run/MysqLd (code=exited, status=0/SUCCESS) Main PID: 6832 (code=exited, status=0/SUCCESS) Status: "MariaDB server is down" 2 02 16:55:25 doraemoe MysqLd[6832]: 2018-02-02 16:55:25 140495303359232 [Note] /usr/sbin/MysqLd: normal shutdown 2 02 16:55:25 doraemoe MysqLd[6832]: 2018-02-02 16:55:25 140495303359232 [Note] Event Scheduler: Purging the queue. 0 events 2 02 16:55:25 doraemoe MysqLd[6832]: 2018-02-02 16:55:25 140494621349632 [Note] InnoDB: FTS optimize thread exiting. 2 02 16:55:25 doraemoe MysqLd[6832]: 2018-02-02 16:55:25 140495303359232 [Note] InnoDB: Starting shutdown... 2 02 16:55:26 doraemoe MysqLd[6832]: 2018-02-02 16:55:26 140495303359232 [Note] InnoDB: Waiting for page_cleaner to finish flushing of buffer pool 2 02 16:55:27 doraemoe MysqLd[6832]: 2018-02-02 16:55:27 140495303359232 [Note] InnoDB: Shutdown completed; log sequence number 1616889 2 02 16:55:27 doraemoe MysqLd[6832]: 2018-02-02 16:55:27 140495303359232 [Note] /usr/sbin/MysqLd: Shutdown complete 2 02 16:55:27 doraemoe systemd[1]: Failed to start MariaDB database server. 2 02 16:55:27 doraemoe systemd[1]: mariadb.service: Unit entered Failed state. 2 02 16:55:27 doraemoe systemd[1]: mariadb.service: Failed with result 'exit-code'.@H_404_9@journalctl -xe` that maybe useful: `2 02 16:42:39 doraemoe systemd[5505]: mariadb.service: Failed at step EXEC spawning /etc/MysqL/debian-start: No such file or directory@H_404_9@我如何解决它？
编辑：这是journalctl -u mariadb.service的完整输出
Logs begin at Fri 2018-02-02 16:36:33 AEST, end at Fri 2018-02-02 19:05:01 AEST. 2月 02 16:36:35 doraemoe systemd[1]: Starting MariaDB database server... 2月 02 16:36:36 doraemoe MysqLd[3534]: 2018-02-02 16:36:36 139856107147840 [Note] /usr/sbin/MysqLd (MysqLd 10.1.26-MariaDB-0+deb9u1) starting as process 3534 ... 2月 02 16:36:36 doraemoe MysqLd[3534]: 2018-02-02 16:36:36 139856107147840 [Note] InnoDB: innodb_empty_free_list_algorithm has been changed to legacy because of small buffer pool size. In order to use backoff, increase buffer pool at least up to 20MB. 2月 02 16:36:36 doraemoe MysqLd[3534]: 2018-02-02 16:36:36 139856107147840 [Note] InnoDB: Using mutexes to ref count buffer pool pages 2月 02 16:36:36 doraemoe MysqLd[3534]: 2018-02-02 16:36:36 139856107147840 [Note] InnoDB: The InnoDB memory heap is disabled 2月 02 16:36:36 doraemoe MysqLd[3534]: 2018-02-02 16:36:36 139856107147840 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins 2月 02 16:36:36 doraemoe MysqLd[3534]: 2018-02-02 16:36:36 139856107147840 [Note] InnoDB: GCC builtin __atomic_thread_fence() is used for memory barrier 2月 02 16:36:36 doraemoe MysqLd[3534]: 2018-02-02 16:36:36 139856107147840 [Note] InnoDB: Compressed tables use zlib 1.2.8 2月 02 16:36:36 doraemoe MysqLd[3534]: 2018-02-02 16:36:36 139856107147840 [Note] InnoDB: Using Linux native AIO 2月 02 16:36:36 doraemoe MysqLd[3534]: 2018-02-02 16:36:36 139856107147840 [Note] InnoDB: Using SSE crc32 instructions 2月 02 16:36:36 doraemoe MysqLd[3534]: 2018-02-02 16:36:36 139856107147840 [Note] InnoDB: Initializing buffer pool, size = 128.0M 2月 02 16:36:36 doraemoe MysqLd[3534]: 2018-02-02 16:36:36 139856107147840 [Note] InnoDB: Completed initialization of buffer pool 2月 02 16:36:36 doraemoe MysqLd[3534]: 2018-02-02 16:36:36 139856107147840 [Note] InnoDB: Highest supported file format is Barracuda. 2月 02 16:36:36 doraemoe MysqLd[3534]: 2018-02-02 16:36:36 139856107147840 [Note] InnoDB: 128 rollback segment(s) are active. 2月 02 16:36:36 doraemoe MysqLd[3534]: 2018-02-02 16:36:36 139856107147840 [Note] InnoDB: Waiting for purge to start 2月 02 16:36:36 doraemoe MysqLd[3534]: 2018-02-02 16:36:36 139856107147840 [Note] InnoDB: Percona XTradB (http://www.percona.com) 5.6.36-82.1 started; log sequence number 1616859 2月 02 16:36:36 doraemoe MysqLd[3534]: 2018-02-02 16:36:36 139856107147840 [Note] Plugin 'FeedBACK' is disabled. 2月 02 16:36:36 doraemoe MysqLd[3534]: 2018-02-02 16:36:36 139856107147840 [Note] Server socket created on IP: '::'. 2月 02 16:36:36 doraemoe MysqLd[3534]: 2018-02-02 16:36:36 139855396824832 [Note] InnoDB: Dumping buffer pool(s) not yet started 2月 02 16:36:36 doraemoe MysqLd[3534]: 2018-02-02 16:36:36 139856107147840 [Note] /usr/sbin/MysqLd: ready for connections. 2月 02 16:36:36 doraemoe MysqLd[3534]: Version: '10.1.26-MariaDB-0+deb9u1' socket: '/var/run/MysqLd/MysqLd.sock' port: 3306 Debian 9.1 2月 02 16:36:36 doraemoe systemd[3810]: mariadb.service: Failed at step EXEC spawning /etc/MysqL/debian-start: No such file or directory 2月 02 16:36:36 doraemoe systemd[1]: mariadb.service: Control process exited, code=exited status=203 2月 02 16:36:36 doraemoe MysqLd[3534]: 2018-02-02 16:36:36 139856106375936 [Note] /usr/sbin/MysqLd: normal shutdown 2月 02 16:36:36 doraemoe MysqLd[3534]: 2018-02-02 16:36:36 139856106375936 [Note] Event Scheduler: Purging the queue. 0 events 2月 02 16:36:36 doraemoe MysqLd[3534]: 2018-02-02 16:36:36 139855422002944 [Note] InnoDB: FTS optimize thread exiting. 2月 02 16:36:36 doraemoe MysqLd[3534]: 2018-02-02 16:36:36 139856106375936 [Note] InnoDB: Starting shutdown... 2月 02 16:36:37 doraemoe MysqLd[3534]: 2018-02-02 16:36:37 139856106375936 [Note] InnoDB: Waiting for page_cleaner to finish flushing of buffer pool 2月 02 16:36:39 doraemoe MysqLd[3534]: 2018-02-02 16:36:39 139856106375936 [Note] InnoDB: Shutdown completed; log sequence number 1616869 2月 02 16:36:39 doraemoe MysqLd[3534]: 2018-02-02 16:36:39 139856106375936 [Note] /usr/sbin/MysqLd: Shutdown complete 2月 02 16:36:39 doraemoe systemd[1]: Failed to start MariaDB database server. 2月 02 16:36:39 doraemoe systemd[1]: mariadb.service: Unit entered Failed state. 2月 02 16:36:39 doraemoe systemd[1]: mariadb.service: Failed with result 'exit-code'. 2月 02 16:42:39 doraemoe systemd[1]: Starting MariaDB database server... 2月 02 16:42:39 doraemoe MysqLd[5478]: 2018-02-02 16:42:39 140597204075072 [Note] /usr/sbin/MysqLd (MysqLd 10.1.26-MariaDB-0+deb9u1) starting as process 5478 ... 2月 02 16:42:39 doraemoe MysqLd[5478]: 2018-02-02 16:42:39 140597204075072 [Note] InnoDB: innodb_empty_free_list_algorithm has been changed to legacy because of small buffer pool size. In order to use backoff, increase buffer pool at least up to 20MB. 2月 02 16:42:39 doraemoe MysqLd[5478]: 2018-02-02 16:42:39 140597204075072 [Note] InnoDB: Using mutexes to ref count buffer pool pages 2月 02 16:42:39 doraemoe MysqLd[5478]: 2018-02-02 16:42:39 140597204075072 [Note] InnoDB: The InnoDB memory heap is disabled 2月 02 16:42:39 doraemoe MysqLd[5478]: 2018-02-02 16:42:39 140597204075072 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins 2月 02 16:42:39 doraemoe MysqLd[5478]: 2018-02-02 16:42:39 140597204075072 [Note] InnoDB: GCC builtin __atomic_thread_fence() is used for memory barrier 2月 02 16:42:39 doraemoe MysqLd[5478]: 2018-02-02 16:42:39 140597204075072 [Note] InnoDB: Compressed tables use zlib 1.2.8 2月 02 16:42:39 doraemoe MysqLd[5478]: 2018-02-02 16:42:39 140597204075072 [Note] InnoDB: Using Linux native AIO 2月 02 16:42:39 doraemoe MysqLd[5478]: 2018-02-02 16:42:39 140597204075072 [Note] InnoDB: Using SSE crc32 instructions 2月 02 16:42:39 doraemoe MysqLd[5478]: 2018-02-02 16:42:39 140597204075072 [Note] InnoDB: Initializing buffer pool, size = 128.0M 2月 02 16:42:39 doraemoe MysqLd[5478]: 2018-02-02 16:42:39 140597204075072 [Note] InnoDB: Completed initialization of buffer pool 2月 02 16:42:39 doraemoe MysqLd[5478]: 2018-02-02 16:42:39 140597204075072 [Note] InnoDB: Highest supported file format is Barracuda. 2月 02 16:42:39 doraemoe MysqLd[5478]: 2018-02-02 16:42:39 140597204075072 [Note] InnoDB: 128 rollback segment(s) are active. 2月 02 16:42:39 doraemoe MysqLd[5478]: 2018-02-02 16:42:39 140597204075072 [Note] InnoDB: Waiting for purge to start 2月 02 16:42:39 doraemoe MysqLd[5478]: 2018-02-02 16:42:39 140597204075072 [Note] InnoDB: Percona XTradB (http://www.percona.com) 5.6.36-82.1 started; log sequence number 1616869 2月 02 16:42:39 doraemoe MysqLd[5478]: 2018-02-02 16:42:39 140597204075072 [Note] Plugin 'FeedBACK' is disabled. 2月 02 16:42:39 doraemoe MysqLd[5478]: 2018-02-02 16:42:39 140596496787200 [Note] InnoDB: Dumping buffer pool(s) not yet started 2月 02 16:42:39 doraemoe MysqLd[5478]: 2018-02-02 16:42:39 140597204075072 [Note] Server socket created on IP: '::'. 2月 02 16:42:39 doraemoe MysqLd[5478]: 2018-02-02 16:42:39 140597204075072 [Note] /usr/sbin/MysqLd: ready for connections. 2月 02 16:42:39 doraemoe MysqLd[5478]: Version: '10.1.26-MariaDB-0+deb9u1' socket: '/var/run/MysqLd/MysqLd.sock' port: 3306 Debian 9.1 2月 02 16:42:39 doraemoe systemd[5505]: mariadb.service: Failed at step EXEC spawning /etc/MysqL/debian-start: No such file or directory 2月 02 16:42:39 doraemoe systemd[1]: mariadb.service: Control process exited, code=exited status=203 2月 02 16:42:39 doraemoe MysqLd[5478]: 2018-02-02 16:42:39 140597203303168 [Note] /usr/sbin/MysqLd: normal shutdown 2月 02 16:42:39 doraemoe MysqLd[5478]: 2018-02-02 16:42:39 140597203303168 [Note] Event Scheduler: Purging the queue. 0 events 2月 02 16:42:39 doraemoe MysqLd[5478]: 2018-02-02 16:42:39 140596521965312 [Note] InnoDB: FTS optimize thread exiting. 2月 02 16:42:39 doraemoe MysqLd[5478]: 2018-02-02 16:42:39 140597203303168 [Note] InnoDB: Starting shutdown... 2月 02 16:42:40 doraemoe MysqLd[5478]: 2018-02-02 16:42:40 140597203303168 [Note] InnoDB: Waiting for page_cleaner to finish flushing of buffer pool 2月 02 16:42:42 doraemoe MysqLd[5478]: 2018-02-02 16:42:42 140597203303168 [Note] InnoDB: Shutdown completed; log sequence number 1616879 2月 02 16:42:42 doraemoe MysqLd[5478]: 2018-02-02 16:42:42 140597203303168 [Note] /usr/sbin/MysqLd: Shutdown complete 2月 02 16:42:42 doraemoe systemd[1]: Failed to start MariaDB database server. 2月 02 16:42:42 doraemoe systemd[1]: mariadb.service: Unit entered Failed state. 2月 02 16:42:42 doraemoe systemd[1]: mariadb.service: Failed with result 'exit-code'. 2月 02 16:55:24 doraemoe systemd[1]: Starting MariaDB database server... 2月 02 16:55:24 doraemoe MysqLd[6832]: 2018-02-02 16:55:24 140495304131136 [Note] /usr/sbin/MysqLd (MysqLd 10.1.26-MariaDB-0+deb9u1) starting as process 6832 ... 2月 02 16:55:24 doraemoe MysqLd[6832]: 2018-02-02 16:55:24 140495304131136 [Note] InnoDB: innodb_empty_free_list_algorithm has been changed to legacy because of small buffer pool size. In order to use backoff, increase buffer pool at least up to 20MB. 2月 02 16:55:24 doraemoe MysqLd[6832]: 2018-02-02 16:55:24 140495304131136 [Note] InnoDB: Using mutexes to ref count buffer pool pages 2月 02 16:55:24 doraemoe MysqLd[6832]: 2018-02-02 16:55:24 140495304131136 [Note] InnoDB: The InnoDB memory heap is disabled 2月 02 16:55:24 doraemoe MysqLd[6832]: 2018-02-02 16:55:24 140495304131136 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins 2月 02 16:55:24 doraemoe MysqLd[6832]: 2018-02-02 16:55:24 140495304131136 [Note] InnoDB: GCC builtin __atomic_thread_fence() is used for memory barrier 2月 02 16:55:24 doraemoe MysqLd[6832]: 2018-02-02 16:55:24 140495304131136 [Note] InnoDB: Compressed tables use zlib 1.2.8 2月 02 16:55:24 doraemoe MysqLd[6832]: 2018-02-02 16:55:24 140495304131136 [Note] InnoDB: Using Linux native AIO 2月 02 16:55:24 doraemoe MysqLd[6832]: 2018-02-02 16:55:24 140495304131136 [Note] InnoDB: Using SSE crc32 instructions 2月 02 16:55:24 doraemoe MysqLd[6832]: 2018-02-02 16:55:24 140495304131136 [Note] InnoDB: Initializing buffer pool, size = 128.0M 2月 02 16:55:24 doraemoe MysqLd[6832]: 2018-02-02 16:55:24 140495304131136 [Note] InnoDB: Completed initialization of buffer pool 2月 02 16:55:24 doraemoe MysqLd[6832]: 2018-02-02 16:55:24 140495304131136 [Note] InnoDB: Highest supported file format is Barracuda. 2月 02 16:55:25 doraemoe MysqLd[6832]: 2018-02-02 16:55:25 140495304131136 [Note] InnoDB: 128 rollback segment(s) are active. 2月 02 16:55:25 doraemoe MysqLd[6832]: 2018-02-02 16:55:25 140495304131136 [Note] InnoDB: Waiting for purge to start 2月 02 16:55:25 doraemoe MysqLd[6832]: 2018-02-02 16:55:25 140495304131136 [Note] InnoDB: Percona XTradB (http://www.percona.com) 5.6.36-82.1 started; log sequence number 1616879 2月 02 16:55:25 doraemoe MysqLd[6832]: 2018-02-02 16:55:25 140495304131136 [Note] Plugin 'FeedBACK' is disabled. 2月 02 16:55:25 doraemoe MysqLd[6832]: 2018-02-02 16:55:25 140494596171520 [Note] InnoDB: Dumping buffer pool(s) not yet started 2月 02 16:55:25 doraemoe MysqLd[6832]: 2018-02-02 16:55:25 140495304131136 [Note] Server socket created on IP: '::'. 2月 02 16:55:25 doraemoe MysqLd[6832]: 2018-02-02 16:55:25 140495304131136 [Note] /usr/sbin/MysqLd: ready for connections. 2月 02 16:55:25 doraemoe MysqLd[6832]: Version: '10.1.26-MariaDB-0+deb9u1' socket: '/var/run/MysqLd/MysqLd.sock' port: 3306 Debian 9.1 2月 02 16:55:25 doraemoe systemd[6859]: mariadb.service: Failed at step EXEC spawning /etc/MysqL/debian-start: No such file or directory 2月 02 16:55:25 doraemoe systemd[1]: mariadb.service: Control process exited, code=exited status=203 2月 02 16:55:25 doraemoe MysqLd[6832]: 2018-02-02 16:55:25 140495303359232 [Note] /usr/sbin/MysqLd: normal shutdown 2月 02 16:55:25 doraemoe MysqLd[6832]: 2018-02-02 16:55:25 140495303359232 [Note] Event Scheduler: Purging the queue. 0 events 2月 02 16:55:25 doraemoe MysqLd[6832]: 2018-02-02 16:55:25 140494621349632 [Note] InnoDB: FTS optimize thread exiting. 2月 02 16:55:25 doraemoe MysqLd[6832]: 2018-02-02 16:55:25 140495303359232 [Note] InnoDB: Starting shutdown... 2月 02 16:55:26 doraemoe MysqLd[6832]: 2018-02-02 16:55:26 140495303359232 [Note] InnoDB: Waiting for page_cleaner to finish flushing of buffer pool 2月 02 16:55:27 doraemoe MysqLd[6832]: 2018-02-02 16:55:27 140495303359232 [Note] InnoDB: Shutdown completed; log sequence number 1616889 2月 02 16:55:27 doraemoe MysqLd[6832]: 2018-02-02 16:55:27 140495303359232 [Note] /usr/sbin/MysqLd: Shutdown complete 2月 02 16:55:27 doraemoe systemd[1]: Failed to start MariaDB database server. 2月 02 16:55:27 doraemoe systemd[1]: mariadb.service: Unit entered Failed state. 2月 02 16:55:27 doraemoe systemd[1]: mariadb.service: Failed with result 'exit-code'.@H_404_9@运行/etc/init.d/MysqL启动结果：
[....] Starting MysqL (via systemctl): MysqL.serviceJob for mariadb.service Failed because the control process exited with error code. See "systemctl status mariadb.service" and "journalctl -xe" for details. Failed!@H_404_9@我找不到名为MysqL.err的文件和ps -aux | grep -i maria没有结果.
解决方法:
由于某种原因,你没有文件/ etc / MysqL / debian-start,这是给出的错误：
16:55:25 doraemoe systemd[6859]: mariadb.service: Failed at step EXEC spawning /etc/MysqL/debian-start: No such file or directory@H_404_9@我检查了我的mariadb安装,该文件是mariadb-server-10.1软件包的一部分.检查是否有/etc/MysqL/debian-start.dpkg-dist或类似的,如果这样重命名为/ etc / MysqL / debian-start.
否则,请检查您安装的确切包名称：
dpkg -S /usr/bin/MysqLd_safe mariadb-server-10.1: /usr/bin/MysqLd_safe@H_404_9@下载包.deb(例如via this page),解压缩：
dpkg-deb --extract mariadb-server-10.1_10.1.26-0+deb9u1_amd64.deb /tmp/mariadb-server@H_404_9@cp /tmp/mariadb-server/etc/MysqL/debian-start /etc/MysqL/@H_404_9@然后你应该能够启动它;除非缺少更多文件.奇怪的是,这个文件应该丢失,所以在某个阶段出现了问题.
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