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    Êý¾ÝÎļþĿ¼Ϊ$MYSQL_DIR/data¡£
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$cd $MYSQL_DIR
$sudo cp -r -p data var2
    ÉÏÃæµÄÖ¸Ádata±£ÁôÔ­À´µ½È¨ÏÞ¸´ÖÆÒ»·Ýµ½var2£¬var2Ò²¾ÍÊÇÁíÒ»¸ö·þÎñÆ÷µÄÊý¾ÝĿ¼£¬ÕâÑù£¬ÔÚԭʼ
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    $sudo ./mysqld_safe --user=mysql --binlog-do-db=test &
    ÉÏÃæµÄÃüÁî±íʾÆô¶¯·þÎñÆ÷²¢ÇÒʹÓöþ½øÖÆÈÕÖ¾¼Ç¼Êý¾Ý¿âtestµÄ¸üж¯×÷¡£
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    $sudo vi /etc/my.cnf
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[mysqld]
server-id=2    #Ô­À´ÊÇ1
socket=/tmp/mysql.sock2    #Ô­À´ÊÇ/tmp/mysql.sock
port=3307                #Ô­À´ÊÇ3306
#ÏÂÃæ3ÐÐÊÇÌí¼ÓµÄ
pid-file=$MYSQL_DIR/var2/localhost.pid2
datadir=$MYSQL_DIR/var2
log=$MYSQL_DIR/var2/db2.log
    ×¢ÒâʹÓÃ×îÇ°ÃæµÄMySQL°²×°Ä¿Â¼À´´úÌæÉÏÃæµÄ$MYSQL_DIR¡£
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