MySQL 관련 문제로 웹페이지가 안뜨네요;

저희 회사 사용하는 서버를 리부팅해야할일이 생겨 리부팅 후

서비스를 재시작하고 확인하니 갑자기 웹페이지가 안뜨는 현상이 발생하였습니다.

Warning: mysql_connect(): Lost connection to MySQL server during query in /usr/local/apache/htdocs/EST_htdocs/db.inc on line 13
SQLserver에 연결할 수 없습니다.

위가 웹페이지에 뜬 해당 메시지구요..

인터넷 뒤져보니 MySQL 데몬이 안올라가 발생한 문제라고 해서 ps명령으로 찾아보니

SQL 데몬도 살아있는데.... 잘되던게 리부팅하면서 갑자기 안되네요;

root     14409     1  0 08:31 pts/3  00:00:00 /bin/sh /usr/local/mysql/bin/mysqld_safe --user=root --datadir=/var/lib/mysql

root     14415     1  0 08:31 ?        00:00:00 /usr/local/apache/bin/httpd -k start
EST      14434 14415  0 08:31 ?        00:00:00 /usr/local/apache/bin/httpd -k start
EST      14435 14415  0 08:31 ?        00:00:00 /usr/local/apache/bin/httpd -k start
EST      14436 14415  0 08:31 ?        00:00:00 /usr/local/apache/bin/httpd -k start
EST      14437 14415  0 08:31 ?        00:00:00 /usr/local/apache/bin/httpd -k start
EST      14438 14415  0 08:31 ?        00:00:00 /usr/local/apache/bin/httpd -k start
root     14448 14409  0 08:31 pts/3    00:00:00 /usr/local/mysql/libexec/mysqld --basedir=/usr/local/mysql --datadir=/var/lib/mysql --user=root --pid-file=/var/lib/mysql/est.pid --skip-locking --port=3306 --socket=/tmp/mysql.sock
root     14449 14448  0 08:31 pts/3    00:00:00 /usr/local/mysql/libexec/mysqld --basedir=/usr/local/mysql --datadir=/var/lib/mysql --user=root --pid-file=/var/lib/mysql/est.pid --skip-locking --port=3306 --socket=/tmp/mysql.sock
root     14450 14449  0 08:31 pts/3    00:00:00 /usr/local/mysql/libexec/mysqld --basedir=/usr/local/mysql --datadir=/var/lib/mysql --user=root --pid-file=/var/lib/mysql/est.pid --skip-locking --port=3306 --socket=/tmp/mysql.sock
root     14451 14449  0 08:31 pts/3    00:00:00 /usr/local/mysql/libexec/mysqld --basedir=/usr/local/mysql --datadir=/var/lib/mysql --user=root --pid-file=/var/lib/mysql/est.pid --skip-locking --port=3306 --socket=/tmp/mysql.sock
root     14452 14449  0 08:31 pts/3    00:00:00 /usr/local/mysql/libexec/mysqld --basedir=/usr/local/mysql --datadir=/var/lib/mysql --user=root --pid-file=/var/lib/mysql/est.pid --skip-locking --port=3306 --socket=/tmp/mysql.sock
root     14453 14449  0 08:31 pts/3    00:00:00 /usr/local/mysql/libexec/mysqld --basedir=/usr/local/mysql --datadir=/var/lib/mysql --user=root --pid-file=/var/lib/mysql/est.pid --skip-locking --port=3306 --socket=/tmp/mysql.sock
root     14455 14449  0 08:31 pts/3    00:00:00 /usr/local/mysql/libexec/mysqld --basedir=/usr/local/mysql --datadir=/var/lib/mysql --user=root --pid-file=/var/lib/mysql/est.pid --skip-locking --port=3306 --socket=/tmp/mysql.sock
root     14456 14449  0 08:31 pts/3    00:00:00 /usr/local/mysql/libexec/mysqld --basedir=/usr/local/mysql --datadir=/var/lib/mysql --user=root --pid-file=/var/lib/mysql/est.pid --skip-locking --port=3306 --socket=/tmp/mysql.sock
root     14457 14449  0 08:31 pts/3    00:00:00 /usr/local/mysql/libexec/mysqld --basedir=/usr/local/mysql --datadir=/var/lib/mysql --user=root --pid-file=/var/lib/mysql/est.pid --skip-locking --port=3306 --socket=/tmp/mysql.sock
root     14458 14449  0 08:31 pts/3    00:00:00 /usr/local/mysql/libexec/mysqld --basedir=/usr/local/mysql --datadir=/var/lib/mysql --user=root --pid-file=/var/lib/mysql/est.pid --skip-locking --port=3306 --socket=/tmp/mysql.sock
EST      14478 14415  0 08:32 ?        00:00:00 /usr/local/apache/bin/httpd -k start
root     14489 13965  0 08:32 pts/3    00:00:00 egrep (http|sql)

위가 ps 명령으로 본 프로세스 인데 무슨문제 때문인지 궁금하네요;;;