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I don’t know what i have to do now seeing this error(mysql.service won’t start) bcz i’m that much linux guy… Pls give some solution asap
systemctl status mysqld.service
● mysql.service - MySQL Community Server
Loaded: loaded (/lib/systemd/system/mysql.service; enabled; vendor preset: enabled)
Active: activating (start-post) (Result: exit-code) since Wed 2017-08-23 19:17:34 UTC; 24s ago
Process: 26606 ExecStart=/usr/sbin/mysqld (code=exited, status=1/FAILURE)
Process: 26597 ExecStartPre=/usr/share/mysql/mysql-systemd-start pre (code=exited, status=0/SUCCESS)
Main PID: 26606 (code=exited, status=1/FAILURE); : 26607 (mysql-systemd-s)
Tasks: 2
Memory: 324.0K
CPU: 520ms
CGroup: /system.slice/mysql.service
└─control
├─26607 /bin/bash /usr/share/mysql/mysql-systemd-start post
└─26676 sleep 1
Aug 23 19:17:34 ubuntu-1gb-nyc3-01 systemd[1]: Starting MySQL Community Server...
Aug 23 19:17:35 ubuntu-1gb-nyc3-01 systemd[1]: mysql.service: Main process exited, code=exited, status=1/FAILURE
journalctl -xe
-- Unit mysql.service has begun starting up.
Aug 23 19:19:05 ubuntu-1gb-nyc3-01 audit[26888]: AVC apparmor="DENIED" operation="open" profile="/usr/sbin/mysqld" name="/proc/26888/status" pid=2688
Aug 23 19:19:05 ubuntu-1gb-nyc3-01 audit[26888]: AVC apparmor="DENIED" operation="open" profile="/usr/sbin/mysqld" name="/sys/devices/system/node/" p
Aug 23 19:19:05 ubuntu-1gb-nyc3-01 audit[26888]: AVC apparmor="DENIED" operation="open" profile="/usr/sbin/mysqld" name="/proc/26888/status" pid=2688
Aug 23 19:19:05 ubuntu-1gb-nyc3-01 kernel: audit: type=1400 audit(1503515945.954:748): apparmor="DENIED" operation="open" profile="/usr/sbin/mysqld"
Aug 23 19:19:05 ubuntu-1gb-nyc3-01 kernel: audit: type=1400 audit(1503515945.954:749): apparmor="DENIED" operation="open" profile="/usr/sbin/mysqld"
Aug 23 19:19:05 ubuntu-1gb-nyc3-01 kernel: audit: type=1400 audit(1503515945.954:750): apparmor="DENIED" operation="open" profile="/usr/sbin/mysqld"
Aug 23 19:19:06 ubuntu-1gb-nyc3-01 systemd[1]: mysql.service: Main process exited, code=exited, status=1/FAILURE
Aug 23 19:19:23 ubuntu-1gb-nyc3-01 sshd[26930]: Connection closed by 116.31.116.40 port 40327 [preauth]
Aug 23 19:19:36 ubuntu-1gb-nyc3-01 systemd[1]: Failed to start MySQL Community Server.
-- Subject: Unit mysql.service has failed
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
--
-- Unit mysql.service has failed.
--
-- The result is failed.
Aug 23 19:19:36 ubuntu-1gb-nyc3-01 systemd[1]: mysql.service: Unit entered failed state.
Aug 23 19:19:36 ubuntu-1gb-nyc3-01 systemd[1]: mysql.service: Failed with result 'exit-code'.
Aug 23 19:19:36 ubuntu-1gb-nyc3-01 systemd[1]: mysql.service: Service hold-off time over, scheduling restart.
Aug 23 19:19:36 ubuntu-1gb-nyc3-01 systemd[1]: Stopped MySQL Community Server.
-- Subject: Unit mysql.service has finished shutting down
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
--
-- Unit mysql.service has finished shutting down.
Aug 23 19:19:36 ubuntu-1gb-nyc3-01 systemd[1]: Starting MySQL Community Server...
-- Subject: Unit mysql.service has begun start-up
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
--
-- Unit mysql.service has begun starting up.
Aug 23 19:19:36 ubuntu-1gb-nyc3-01 audit[26981]: AVC apparmor="DENIED" operation="open" profile="/usr/sbin/mysqld" name="/proc/26981/status" pid=2698
Aug 23 19:19:36 ubuntu-1gb-nyc3-01 audit[26981]: AVC apparmor="DENIED" operation="open" profile="/usr/sbin/mysqld" name="/sys/devices/system/node/" p
Aug 23 19:19:36 ubuntu-1gb-nyc3-01 audit[26981]: AVC apparmor="DENIED" operation="open" profile="/usr/sbin/mysqld" name="/proc/26981/status" pid=2698
Aug 23 19:19:36 ubuntu-1gb-nyc3-01 kernel: audit: type=1400 audit(1503515976.446:751): apparmor="DENIED" operation="open" profile="/usr/sbin/mysqld"
Aug 23 19:19:36 ubuntu-1gb-nyc3-01 kernel: audit: type=1400 audit(1503515976.446:752): apparmor="DENIED" operation="open" profile="/usr/sbin/mysqld"
Aug 23 19:19:36 ubuntu-1gb-nyc3-01 kernel: audit: type=1400 audit(1503515976.446:753): apparmor="DENIED" operation="open" profile="/usr/sbin/mysqld"
Aug 23 19:19:37 ubuntu-1gb-nyc3-01 systemd[1]: mysql.service: Main process exited, code=exited, status=1/FAILURE
Aug 23 19:19:48 ubuntu-1gb-nyc3-01 sudo[27025]: root : TTY=pts/0 ; PWD=/root ; USER=root ; COMMAND=/bin/journalctl -xe
Aug 23 19:19:48 ubuntu-1gb-nyc3-01 sudo[27025]: pam_unix(sudo:session): session opened for user root by root(uid=0)
tail -30 /var/log/mysql/error.log
2017-08-23T19:22:08.951104Z 0 [Warning] Changed limits: max_open_files: 1024 (requested 5000)
2017-08-23T19:22:08.951207Z 0 [Warning] Changed limits: table_open_cache: 431 (requested 2000)
2017-08-23T19:22:09.177161Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2017-08-23T19:22:09.181318Z 0 [Note] /usr/sbin/mysqld (mysqld 5.7.19-0ubuntu0.16.04.1) starting as process 27514 ...
2017-08-23T19:22:09.190896Z 0 [Note] InnoDB: PUNCH HOLE support available
2017-08-23T19:22:09.190945Z 0 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2017-08-23T19:22:09.190960Z 0 [Note] InnoDB: Uses event mutexes
2017-08-23T19:22:09.190971Z 0 [Note] InnoDB: GCC builtin __atomic_thread_fence() is used for memory barrier
2017-08-23T19:22:09.190980Z 0 [Note] InnoDB: Compressed tables use zlib 1.2.8
2017-08-23T19:22:09.190990Z 0 [Note] InnoDB: Using Linux native AIO
2017-08-23T19:22:09.191768Z 0 [Note] InnoDB: Number of pools: 1
2017-08-23T19:22:09.192044Z 0 [Note] InnoDB: Using CPU crc32 instructions
2017-08-23T19:22:09.195523Z 0 [Note] InnoDB: Initializing buffer pool, total size = 128M, instances = 1, chunk size = 128M
2017-08-23T19:22:09.213977Z 0 [Note] InnoDB: Completed initialization of buffer pool
2017-08-23T19:22:09.219177Z 0 [Note] InnoDB: If the mysqld execution user is authorized, page cleaner thread priority can be changed. See the man page of setpriority().
2017-08-23T19:22:09.233451Z 0 [Note] InnoDB: Highest supported file format is Barracuda.
2017-08-23T19:22:09.252993Z 0 [Note] InnoDB: Creating shared tablespace for temporary tables
2017-08-23T19:22:09.253125Z 0 [Note] InnoDB: Setting file './ibtmp1' size to 12 MB. Physically writing the file full; Please wait ...
2017-08-23T19:22:09.264465Z 0 [Warning] InnoDB: 1048576 bytes should have been written. Only 851968 bytes written. Retrying for the remaining bytes.
2017-08-23T19:22:09.264519Z 0 [Warning] InnoDB: Retry attempts for writing partial data failed.
2017-08-23T19:22:09.264539Z 0 [ERROR] InnoDB: Write to file ./ibtmp1failed at offset 5242880, 1048576 bytes should have been written, only 851968 were written. Operating system error number 28. Check that your OS and file s2017-08-23T19:22:09.866980Z 0 [Note] InnoDB: Removed temporary tablespace data file: "ibtmp1"
2017-08-23T19:22:09.867026Z 0 [ERROR] Plugin 'InnoDB' init function returned error.
2017-08-23T19:22:09.867033Z 0 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed.
2017-08-23T19:22:09.867040Z 0 [ERROR] Failed to initialize plugins.
2017-08-23T19:22:09.867043Z 0 [ERROR] Aborting
2017-08-23T19:22:09.867049Z 0 [Note] Binlog end
2017-08-23T19:22:09.867098Z 0 [Note] Shutting down plugin 'MyISAM'
2017-08-23T19:22:09.867485Z 0 [Note] /usr/sbin/mysqld: Shutdown complete
and i’m using ubuntu 16.04(1gb) Droplet
Thanks in advance
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