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redhat 9.0
mysql3.23.57


mysqlÊý¾Ýͬ²½±¸·Ý

A·þÎñÆ÷£º 192.168.1.2 Ö÷·þÎñÆ÷master
B·þÎñÆ÷£º 192.168.1.3 ¸±·þÎñÆ÷slave


A·þÎñÆ÷ÉèÖÃ

#mysql –u root –p
mysql>GRANT FILE ON *.* TO backup@192.168.1.3 IDENTIFIED BY ‘1234’;
mysql>\exit

ÉÏÃæÊÇMaster¿ª·ÅÒ»¸öÕ˺ÅbackupÃÜÂë1234¸øIP:192.168.1.3Óеµ°¸´¦ÀíµÄȨÏÞ


mysqladmin –u root –p shutdown

±¸·ÝMasterËùÓÐÊý¾Ý¿â..ͨ³£¶¼ÓÃtarÖ¸Áî.
#tar –cvf /tmp/mysql.tar /var/lib/mysql
×¢Òâ:tarµÄʱºò,MySQLÊÇÒªÔÚstopÇé¿öÏÂ

ÔÚA»úÆ÷ÉÏÐÞ¸Ä/etc/my.cnf
ÔÚ[mysqld]Çø¶ÎÄÚ¼ÓÈë²ÎÊý
log-bin
server-id=1
sql-bin-update-same
binlog-do-db=vbb

ÖØÆôA·þÎñÆ÷mysql

´ËʱÒòΪÓмÓÈëlog-bin²ÎÊý,Òò´Ë¿ªÊ¼ÓÐindex²úÉúÁË,ÔÚ/var/lib/mysqlĿ¼ÏÂÓÐ.indexµµ°¸¼Í¼Êý¾Ý¿âµÄÒ춯log.


B·þÎñÆ÷ÉèÖÃ

É趨/etc/my.cnf
ÔÚ[mysqld]Çø¶Î¼ÓÈë

master-host=192.168.1.2
master-user=backup
master-password=1234
master-port=3306
server-id=2
master-connect-retry=60 Ô¤ÉèÖØÊÔ¼ä¸ô60Ãë
replicate-do-db=vbb ¸æËßslaveÖ»×övbbÊý¾Ý¿âµÄ¸üÐÂ
log-slave-updates


½«AÉϵÄmysql.tar copyµ½BÉÏ
ÓÃftp´«BµÄ/tmp
9.½âѹËõ
#cd /var/lib/


×´¿ö²âÊÔ
1.A¸úBÍøÂç¼°·þÎñ¶¼Õý³£Çé¿öÏÂ,ÓÉA¶Ë±ä»¯Êý¾Ýºó,µ½B¶Ëä¯ÀÀÊý¾Ý,¼ìÊÓÊÇ·ñÓнøÐÐreplication?!
2.Ä£ÄâBµ±»ú,»òÊÇB²»Ò»¶¨ÐèÒªÒ»Ö±¸úAÓÐÁ¬½Ó.
½«ÓÉA¶Ë±ä»¯Êý¾Ýºó,µ½B¶Ëä¯ÀÀÊý¾Ý£¬BµãÓ¦¸ÃÊÇûÓÐÊý¾Ý±ä»¯µÄ


#tar xvf /tmp/mysql-snapshot.tar
#chown –R mysql:mysql mysql

1ÖØÆôB·þÎñÆ÷µÄmysql

ÕâʱÔÚ/var/lib/mysqlĿ¼»á³öÏÖmaster.info,´Ëµµ°¸¼Í¼ÁËMaster MySQL serverµÄÐÅÏ¢.

 

×´¿ö²âÊÔ
1.A¸úBÍøÂç¼°·þÎñ¶¼Õý³£Çé¿öÏÂ,ÓÉA¶Ë±ä»¯Êý¾Ýºó,µ½B¶Ëä¯ÀÀÊý¾Ý,¼ìÊÓÊÇ·ñÓнøÐÐreplication?!
2.Ä£ÄâBµ±»ú,»òÊÇB²»Ò»¶¨ÐèÒªÒ»Ö±¸úAÓÐÁ¬½Ó.
½«ÓÉA¶Ë±ä»¯Êý¾Ýºó,µ½B¶Ëä¯ÀÀÊý¾Ý£¬BµãÓ¦¸ÃÊÇûÓÐÊý¾Ý±ä»¯µÄ


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Mysql Explain Ïê½â

Mysql Explain Ïê½â
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explain < table_name >
ÀýÈç: explain select * from t3 where id=3952602;
¶þ.explainÊä³ö½âÊÍ
+----+-------------+-------+-------+-------------------+--- ......

MySQL schemaÃüÃû¹æÔò

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mysql on suse linux ϵͳÃüÁî±Ê¼Ç

SLES 11
ÉèÖÃmysql·þÎñ×Ô¶¯Æô¶¯×´Ì¬
chkconfig mysql on
(chkconfig mysql off)
Ìí¼Ó/ɾ³ýmysql·þÎñ
/sbin/chkconfig --del mysql
/sbin/chkconfig --add mysql
²é¿´mysql°æ±¾
mysql -V

mysqld -V
ÆôÍ£ mysql
service mysql start
service mysql stop
service mysql restart
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