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Mysql can't be started (start job failed to start error)

Posted on September 12, 2014

Hi i can’t mysql server. I use Ubuntu 14.04 2 gb droplet

I try:

service mysql start

i get error

start job failed to start

i try this command

this command output:

http://pastebin.com/CC6WMRFc

I see: Unknown/unsupported storage engine: InnoDB

But, WordPress used to InnoDB. How to use InnoDB ?

How to solved? :(

Thank you also sorry for my bad english

Update://

I use this command

dmesg | grep mysql

output this command:

http://pastebin.com/6eTrPbC0

Update 2 ://

I try this command:

mysqladmin status

Output:

mysqladmin: connect to server at 'localhost' failed
error: 'Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)'
Check that mysqld is running and that the socket: '/var/run/mysqld/mysqld.sock' exists!


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hi, for me it’s doesn’t work.

see:

my mysql can’t restart .

i saw my /var/log/mysql/error.log and there is this error: 2017-12-03T09:39:52.142121Z 459 [Warning] IP address ‘168.1.128.53’ has been resolved to the host name ‘35.80.01a8.ip4.static.sl-reverse.com’, which resembles IPv4-address itself. 2017-12-03T10:59:19.141618Z 460 [Warning] IP address ‘27.223.28.120’ could not be resolved: Name or service not known 2017-12-03T10:59:19.305963Z 460 [Note] Access denied for user ‘mysql’@‘27.223.28.120’ (using password: NO) 2017-12-03T10:59:19.797301Z 461 [Note] Access denied for user ‘mysql’@‘27.223.28.120’ (using password: YES) 2017-12-03T10:59:28.499946Z 462 [Note] Access denied for user ‘mysql’@‘27.223.28.120’ (using password: YES) 2017-12-03T10:59:30.009678Z 463 [Note] Access denied for user ‘mysql’@‘27.223.28.120’ (using password: YES) 2017-12-03T10:59:30.503099Z 464 [Note] Access denied for user ‘mysql’@‘27.223.28.120’ (using password: YES) 2017-12-03T17:20:15.641002Z 467 [Warning] Host name ‘207-226-143-218.static.pccwglobal.net’ could not be resolved: Name or service not known 2017-12-03T17:20:16.949527Z 468 [ERROR] InnoDB: Table mysql.innodb_table_stats not found.

i don’t know what is the problem !

help me

that’s helpful :)

I had the same issue.

I checked the log with

less /var/log/mysql/error.log

At the bottom of the log I found this

161212  6:30:06  InnoDB: Database was not shut down normally!
InnoDB: Starting crash recovery.
InnoDB: Reading tablespace information from the .ibd files...
InnoDB: Error: trying to add tablespace 278 of name './gseworldfilm/wp_wfHoover.ibd'
InnoDB: to the tablespace memory cache, but tablespace
InnoDB: 278 of name './budget_bumps/wp_wfBadLeechers.ibd' already exists in the tablespace
InnoDB: memory cache!

I moved the “/var/lib/mysql/budget_bumps/wp_wfBadLeechers.ibd” file to “/var/lib/mysql/budget_bumps”

mv /var/lib/mysql/budget_bumps/wp_wfBadLeechers.ibd /var/lib/mysql/ 

I ran a check and repair to the db

 mysqlcheck -c -uroot  --all-databases
 mysqlcheck -o -uroot  --all-databases
 mysqlcheck -r  -uroot  --all-databases

Then I ran the mysql

service mysql start 

Everything is running fine noe

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