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i find a bug in using /etc/init.d/mysql script to start percona5.5.20

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  • i find a bug in using /etc/init.d/mysql script to start percona5.5.20

    i recently upgrade my DB from mysql5.0.77-log to percona server 5.5.20-55,when i start percona server,it seems the script have some
    problem

    the mysql is running ,i open performance schema,when i restart it...


    # service mysql restart
    MySQL (Percona Server) PID file could not be found! [FAILED]
    Starting MySQL (Percona Server)..............................
    .
    # ps -ef|grep mysql
    root 24648 24626 0 08:35 pts/1 00:00:00 mysql
    root 24836 24626 0 08:59 pts/1 00:00:00 vi mysqld-50
    root 25743 1 0 10:23 pts/1 00:00:00 /bin/sh /usr/bin/mysqld_safe --datadir=/var/lib/mysql --pid-

    file=/var/lib/mysql/mysqld.pid
    mysql 26330 25743 0 10:23 pts/1 00:00:00 /usr/sbin/mysqld --basedir=/usr --datadir=/var/lib/mysql --plugin-

    dir=/usr/lib64/mysql/plugin --user=mysql --log-error=/var/lib/mysql/err.log --pid-file=/var/lib/mysql/mysqld.pid --

    socket=/var/lib/mysql/mysql.sock --port=3306
    root 26471 1 0 10:39 pts/1 00:00:00 /bin/sh /usr/bin/mysqld_safe --datadir=/var/lib/mysql --pid-

    file=/var/lib/mysql/mysqld.pid
    mysql 27058 26471 1 10:39 pts/1 00:00:00 /usr/sbin/mysqld --basedir=/usr --datadir=/var/lib/mysql --plugin-

    dir=/usr/lib64/mysql/plugin --user=mysql --log-error=/var/lib/mysql/err.log --pid-file=/var/lib/mysql/mysqld.pid --

    socket=/var/lib/mysql/mysql.sock --port=3306
    root 27134 24626 0 10:40 pts/1 00:00:00 grep mysql
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