Ubuntu – Failed to start production thesql server. No log messages either

This is a production instance (EC2) we are managing for a client. Downtime already 5 hours. I am screwed.

The Story

This morning I found one of our clients mysqld process in killed state. I did sudo service mysql start and got it up and running.

The log informed that this was happening due to table crash. After going through some references on the internet, I executed the following commands:

# mysqld was running
$ mysqlrepair -A --auto-repair
$ mysqlrepair -A -o
# By the time the following command was executed, mysqld had stopped
$ mysqlrepair -A -c

Ever since, the following commands refuse to start mysqld

$ sudo service mysql start
start: Job failed to start

$ sudo mysqld --verbose
$ ps aux | grep mysql
ubuntu   24124  0.0  0.1   8108   936 pts/0    S+   04:07   0:00 grep --color=auto mysql

$ sudo mysqld_safe
131130 04:09:02 mysqld_safe Logging to '/var/log/mysql/error.log'.
131130 04:09:02 mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql
131130 04:09:02 mysqld_safe mysqld from pid file /var/run/mysqld/mysqld.pid ended

There is nothing of the current timestamp in /var/log/mysql/error.log.

$ dmesg | grep mysql
[776212.640137] init: mysql main process (24070) terminated with status 1
[776212.640189] init: mysql main process ended, respawning
[776213.629832] init: mysql post-start process (24071) terminated with status 1
[776213.650730] type=1400 audit(1385784344.772:92): apparmor="STATUS" operation="profile_replace" name="/usr/sbin/mysqld" pid=24094 comm="apparmor_parser"
[776213.745904] init: mysql main process (24098) terminated with status 1
[776213.745957] init: mysql respawning too fast, stopped

The configuration file is: http://pastebin.com/hbvLGqEM