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

  • Posted on September 12, 2014
  • goren.aliAsked by Ali GOREN

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:

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


I use this command

dmesg | grep mysql

output this command:

Update 2 ://

I try this command:

mysqladmin status


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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Type df -h to check the free of your disk.

If your disk is full, the mysql cannot start

hi, for me it’s doesn’t work.


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 ‘’ has been resolved to the host name ‘’, which resembles IPv4-address itself. 2017-12-03T10:59:19.141618Z 460 [Warning] IP address ‘’ could not be resolved: Name or service not known 2017-12-03T10:59:19.305963Z 460 [Note] Access denied for user ‘mysql’@‘’ (using password: NO) 2017-12-03T10:59:19.797301Z 461 [Note] Access denied for user ‘mysql’@‘’ (using password: YES) 2017-12-03T10:59:28.499946Z 462 [Note] Access denied for user ‘mysql’@‘’ (using password: YES) 2017-12-03T10:59:30.009678Z 463 [Note] Access denied for user ‘mysql’@‘’ (using password: YES) 2017-12-03T10:59:30.503099Z 464 [Note] Access denied for user ‘mysql’@‘’ (using password: YES) 2017-12-03T17:20:15.641002Z 467 [Warning] Host name ‘’ 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 :)