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ADMIN 2024. 04. 20.
 MySQL 4.1 Update From 4.0
  ³¯Â¥: 2005.10.10. 22:36:58   Á¶È¸: 569
¾Æ·¡ÀÇ ¹®¼­ ¿øº»Àº http://annyung.oops.org/?m=white&p=mysql41 ¿¡ ÀÖ½À´Ï´Ù.
-------------------------------------------------------

MySQL 4.1 Update From 4.0
ÀÌ ¹®¼­´Â mysql 4.0 ¿¡¼­ mysql 4.1 ·Î ¾÷µ¥ÀÌÆ®¸¦ À§ÇÑ ¹®¼­ÀÌ´Ù. ÀÌ ¹®¼­´Â ´Ù¸¥
¹èÆ÷º»¿¡¼­µµ µ¿ÀÏÇÏ°Ô Àû¿ëÀ» ÇÒ ¼ö ÀÖ´Ù.


ÀÌ ¹®¼­·Î ¹ß»ýÇÏ´Â ÇÇÇØ¿¡ ´ëÇؼ­´Â º¸ÁõÀ» ÇÏÁö ¾Ê½À´Ï´Ù. ²À ÀÛ¾÷ Àü¿¡ µ¥ÀÌÅ͸¦
¹é¾÷ ÇϽŠÈÄ¿¡ ½Ãµµ ÇϽʽÿÀ !!!

4.0.x ¿¡¼­ ¾÷µ¥ÀÌÆ®¸¦ Çϱâ Àü¿¡ mysql database ÀÇ Æ÷¸ËÀÌ ISAM (3.x ¿¡¼­ ¸¸µç °Í
À» ±×´ë·Î °¡Á®´Ù »ç¿ëÇßÀ» °æ¿ì) À̶ó¸é, mysql database ÀÇ Æ÷¸ËÀ» MYISAM À¸·Î º¯
°æÀ» ÇØ¾ß ÇÑ´Ù. ISAM À¸·Î µÇ¾î ÀÖ´ÂÁö È®ÀÎÀ» ÇÏ·Á¸é /var/lib/mysql/mysql ¿¡¼­
ls *.ISM À» ½ÇÇàÇßÀ» ¶§, °á°ú°¡ ³ª¿Â´Ù¸é ISAM format À¸·Î µÇ¾î ÀÖ´Â °ÍÀÌ´Ù. ¸¸¾à
ISM ÆÄÀÏÀÌ Á¸Àç ÇÑ´Ù¸é ¾÷µ¥ÀÌÆ® Àü¿¡,

shell> mysql_fix_privilege_tables --password=DBÆнº¿öµå

¸í·ÉÀ» ½ÇÇàÇÏ¿©, MyISAM À¸·Î º¯°æÀ» ÇÑ ÈÄ¿¡, ´ÙÀ½ÀÇ ÀÛ¾÷À» ÁøÇà Çϵµ·Ï ÇÑ´Ù. ÀÌ
¸í·ÉÀ» ½ÇÇàÇÒ ¶§ ³ª¿À´Â ¿¡·¯ ¸Þ¼¼ÁöµéÀº ¹«½ÃÇصµ »ó°üÀÌ ¾ø´Ù.

!ÁÖÀÇ!

¾÷µ¥ÀÌÆ® Àü¿¡ ¸ðµç database ÀÇ dump ¸¦ ¹Þ¾Æ ³õÀ¸½Ê½Ã¿À. ¾÷µ¥ÀÌÆ® ÈÄ¿¡, ÇØ´ç µ¥
ÀÌÅͺ£À̽ºµéÀÇ data ¸¦ dump ¹ÞÀº °ÍÀ¸·Î ´Ù½Ã ³Ö¾î ÁÖ¾î¾ß ÇÕ´Ï´Ù. 4.1 ¿¡¼­ ´ýÇÁ
¸¦ ¹ÞÀ¸¸é field size °¡ ¹ÝÀ¸·Î ÁÙ¾î ¹ö¸®±â ¶§¹®¿¡ ²À ¾÷µ¥ÀÌÆ® Àü¿¡ ´ýÇÁ¸¦ ¹Þ¾Æ
³õÀ¸¼Å¾ß ÇÕ´Ï´Ù.

´ëÃæ mysqldump -F -n --add-drop-table DBNAME gt; DBNAME.dump ¿Í °°ÀÌ ¹ÞÀ¸¸é µË
´Ï´Ù.


1. mysql 4.1 update

4.0 ¿¡¼­ ¾÷µ¥ÀÌÆ®¸¦ ÇÒ °æ¿ì¿¡´Â, /etc/my.cnf ¸¦ ´Ù¸¥ À̸§À¸·Î º¯°æÇÑ ÈÄ¿¡,
Çϱ⠹ٶõ´Ù. 4.1 ÀÇ my.cnf ¿Í ȣȯÀÌ µÇÁö ¾Ê±â ¶§¹®¿¡, rpm À¸·Î ¾÷µ¥ÀÌÆ®¸¦
ÇÒ °æ¿ì /etc/my.cnf °¡ ¾÷µ¥ÀÌÆ®°¡ µÇÁö ¾ÊÀ» ¼ö Àֱ⠶§¹®ÀÌ´Ù. ±×·¯¹Ç·Î, ²À
À̸§À» ¹Ù²Ù¾î ³õ°í, ¾÷µ¥ÀÌÆ® ÈÄ¿¡, »õ·Î ¸¸µé¾îÁø my.cnf ¸¦ Àç ¼³Á¤ÇÏ¿© »ç¿ë
ÇÏ¿©¾ß ÇÑ´Ù.

pkgadd -F mysql*

¸í·ÉÀ¸·Î °£´ÜÇÏ°Ô ¾÷µ¥ÀÌÆ®°¡ °¡´ÉÇÏ´Ù. ÁÖÀÇÇÒ °ÍÀº * ¹®ÀÚ¸¦ »ç¿ëÇϱâ À§Çؼ­
´Â ½ÇÇàÀ» ÇÏ´Â current directory ¿¡ mysql ·Î ½ÃÀÛÇÏ´Â ÆÄÀÏÀÌ ÀÖÀ¸¸é ¾ÈµÈ´Ù.

¾È³çÀÌ ¾Æ´Ñ ¹èÆ÷º»¿¡¼­´Â ¾Ë¾Æ¼­ ¾÷µ¥ÀÌÆ®¸¦ Çϵµ·Ï ÇÑ´Ù. ±âÁ¸ÀÇ data ´Â ±×´ë
·Î µÎ¸é µÈ´Ù. ´ÙÀ½ ¼½¼Ç¿¡¼­ migration À» ÇÏ´Â ¹æ¹ýÀ» Á¦°øÇÑ´Ù.

¾÷µ¥ÀÌÆ® ¿Ï·á ÈÄ¿¡, /etc/my.cnf ÀÇ

[client]
password = MYSQL_ROOT_PASSOWRD

¼³Á¤À» ÇØ ³õÀº ÈÄ¿¡, my.cnf ÀÇ Æ۹̼ÇÀ» 600 À¸·Î ¼³Á¤À» ÇÑ´Ù. ±×¸®°í, system
ÀÇ charset ÀÌ EUC-KR ÀÏ °æ¿ì¿¡´Â my.cnf ¿¡

init_connect = 'set names euckr'

¼³Á¤ÀÌ µÇ¾î ÀÖ´ÂÁö È®ÀÎÇÑ ÈÄ¿¡, ¾øÀ¸¸é ¼³Á¤À» Çϵµ·Ï ÇÑ´Ù. ¾È³çÀÇ mysql ¿¡´Â
±âº»À¸·Î Á¦°øÀ» ÇÑ´Ù.


2. mysql database migration

¾÷µ¥ÀÌÆ®¸¦ ¿Ï·áÇÑ ÈÄ¿¡, mysql À» Àç½ÃÀÛ Çϸé, ¿¡·¯ ·Î±×¿¡ ´ÙÀ½°ú °°Àº ¸Þ¼¼Áö
¸¦ È®ÀÎÇÒ ¼ö ÀÖ´Ù.

[root@work home]# tail -f /var/log/mysql/error.log

050601 1:04:24 [Warning] './mysql/host' had no or invalid character set,
and default character set is multi-byte, so character column sizes
may have changed
050601 1:04:24 [Warning] './mysql/user' had no or invalid character set,
and default character set is multi-byte, so character column sizes
may have changed
050601 1:04:24 [Warning] './mysql/db' had no or invalid character set,
and default character set is multi-byte, so character column sizes
may have changed
050601 1:04:24 [Warning] mysql.user table is not updated to new password
format; Disabling new password usage until mysql_fix_privilege_tables
is run
050601 1:04:24 [Warning] Can't open and lock time zone table: Å×À̺í
'mysql.time_zone_leap_second' ´Â Á¸ÀçÇÏÁö ¾Ê½À´Ï´Ù. trying to live
without them
050601 1:04:24 [Warning] './mysql/tables_priv' had no or invalid character
set, and default character set is multi-byte, so character column
sizes may have changed
050601 1:04:24 [Warning] './mysql/columns_priv' had no or invalid character
set, and default character set is multi-byte, so character column
sizes may have changed
050601 1:04:24 [Warning] './mysql/func' had no or invalid character set,
and default character set is multi-byte, so character column sizes
may have changed

ÀÌ ¹®Á¦¸¦ fix Çϱâ À§ÇÏ¿©, mysql Àº mysql_fix_privilege_tables ¶ó´Â ¸í·ÉÀ» Á¦
°øÇÑ´Ù. mysql ÀÌ ½ÇÇàµÇ¾î ÀÖ´Â »óÅ¿¡¼­ ´ÙÀ½ÀÇ ¸í·ÉÀ» ½ÇÇàÇÑ´Ù.


[root@work home]# mysql_fix_privilege_tables --password=MYSQL_ROOT_PASSWORD

This script updates all the mysql privilege tables to be usable by
MySQL 4.0 and above.

This is needed if you want to use the new GRANT functions,
CREATE AGGREGATE FUNCTION, or the more secure passwords in 4.1

done

»ó´Ü°ú °°ÀÌ done ¸Þ¼¼Áö°¡ ³ª¿À¸é fix µÈ °ÍÀÌ´Ù.

3. database ÀÇ table ÀÇ charset ¹®Á¦

¾Æ·¡ÀÇ ¹æ¹ýÀ» »ç¿ëÇÒ ¼öµµ ÀÖÀ¸³ª, multibyte ¸¦ »ç¿ëÇÏ´Â db ÀÇ °æ¿ì ÇÊµå °ªÀÌ
¹ÝÀ¸·Î ÁÙ¾î ¹ö¸®´Â ¹®Á¦°¡ ÀÖ´Ù. ±×·¯¹Ç·Î, ¾Õ¼­ ¹Þ¾Æ³õÀº dump ÆÄÀÏ·Î µ¥ÀÌÅ͸¦
´Ù½Ã ¹Ð¾î ³Öµµ·Ï ÇÑ´Ù. ¹Ð¾î ³Ö´Â ¹æ¹ýÀº

mysql db_name < dumpfile

¿Í °°ÀÌ ÇÒ ¼ö ÀÖ´Ù.

ÇÏ´ÜÀº ±×³É Âü°í·Î ³²°Ü ³õ´Â´Ù.

-------

4.0 ¿¡¼­ 4.1 ·Î ¾÷µ¥ÀÌÆ®¸¦ ÇÑ ÈÄ¿¡, ÃÖÃÊÀÇ table Á¢±Ù ½Ã¿¡ error.log ¿¡ ´ÙÀ½
°ú °°Àº ¿¡·¯ ¸Þ¼¼Áö¸¦ ¸¸³ª°Ô µÈ´Ù.

[root@work home]# tail -f /var/log/mysql/error.log

050601 1:04:30 [Warning] './guestbook/oops' had no or invalid character
set, and default character set is multi-byte, so character column
sizes may have changed

À§ÀÇ ·Î±×´Â guestbook database ÀÇ oops table ¿¡ °üÇÑ ·Î±ëÀÌ´Ù.

ÀÌ ¸Þ¼¼Áö´Â mysql 4.0 ÀÇ ¸ðµç Å×À̺íµéÀÌ latin1 ¹®ÀÚ¼ÂÀ¸·Î »ý¼ºÀÌ µÇ¾úÀ¸³ª,
4.1 ºÎÅÍ´Â ±âº»ÀûÀ¸·Î utf8 ·Î °ü¸®¸¦ Çϵµ·Ï º¯°æÀÌ µÇ¾î ¹ß»ýÇÏ´Â ¹®Á¦ÀÌ´Ù.

±×³É »ç¿ëÇϴµ¥ Å©°Ô ÁöÀåÀº ¾øÀ¸³ª, sort µî¿¡´Â ¹®Á¦ÀÇ ¼ÒÁö°¡ ÀÖ´Ù. mysql ¿¡
·Î±×ÀÎÀ» ÇÏ¿© ´ÙÀ½°ú °°Àº ¸í·ÉÀ¸·Î fix ÇÒ ¼ö ÀÖ´Ù.

[root@work home]# mysql guestbook
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 1 to server version: 4.1.12-log

Type 'help;' or '\h' for help. Type '\c' to clear the buffer.

mysql> alter table oops convert to character set utf8

ÁöÁ¤ÇÒ charset Àº ¹«Á¶°Ç utf8 ·Î ÇÏ¸é µÈ´Ù.

¸¸¾à table ÀÌ ¸¹´Ù¸é, mysql -e ¸í·ÉÀ» ÀÌ¿ëÇÏ¿© shell script ¸¦ ¸¸µé¾î ó¸®ÇÒ
¼öµµ ÀÖÀ¸¸ç, ¶Ç´Â php ÀÇ mysql extension °°Àº °ÍÀ» ÀÌ¿ëÇصµ ¹«¹æÇÏ´Ù.


4. ¾ÏÈ£ ¹®Á¦ ÇØ°á

mysql 4.1 ¿¡¼­´Â grant ¶Ç´Â password ÇÔ¼ö¸¦ »ç¿ëÇÒ °æ¿ì 4.0 ÀÇ ¾ÏÈ£ ü°è¿Í´Â
´Ù¸¥ ¹æ½ÄÀ» »ç¿ëÇÑ´Ù. ¹°·Ð ±âÁ¸ 4.0 ¿¡¼­ »ç¿ëÇÏ´ø data ÀÇ ¾ÏÈ£µéÀº ±×´ë·Î ÀÌ
´Ù.

¹®Á¦ÀÇ ¼ÒÁö´Â 4.1 ·Î ¾÷µ¥ÀÌÆ® ÇÑ ÈÄ¿¡ ½ÇÇàµÇ´Â grant ÀÇ identified ³ª password
ÇÔ¼ö´Â »õ·Î¿î ¾ÏÈ£ ü°è¸¦ »ç¿ëÇϱ⠶§¹®¿¡ php ³ª ´Ù¸¥ ¾ð¾îÀÇ mysql °ü·Ã ¶óÀÌ
ºê·¯¸®ÀÇ Á¢¼Ó method ·Î´Â Á¢±ÙÀÌ ºÒ°¡´ÉÇÏ°Ô µÈ´Ù.

±×·¯¹Ç·Î, php ÀÇ °æ¿ì¿¡´Â mysqli extension °ú °°ÀÌ mysql 4.1 Àü¿ë extension
À» »ç¿ëÇØ¾ß ÇÑ´Ù.

¸¸¾à, mysqli extension À» »ç¿ëÇÒ ¼ö ¾ø´Â °æ¿ì, Áï mysql Àº 4.1 ·Î ¿Ã·È´Âµ¥,
php ´Â mysqli extension À» Á¦°øÇÏÁö ¾Ê´Â php4 ¸¦ »ç¿ëÇØ¾ß ÇÏ´Â °æ¿ì³ª, ¶Ç´Â
±âÁ¸ÀÇ ÇÁ·Î±×·¥µéÀÌ mysql extension À» »ç¿ëÇÏ°í ÀÖ°í, ¼öÁ¤Çϱ⿡´Â ³Ê¹« ¾çÀÌ
¸¹À» °æ¿ì¿¡´Â my.cnf ¿¡¼­ identified ³ª password ÇÔ¼ö¸¦ ¿¹ÀüÀÇ ¹æ½Ä´ë·Î »ç¿ë
ÇÒ ¼ö ÀÖµµ·Ï ´ÙÀ½ÀÇ ¼³Á¤À» Á¦°øÇÑ´Ù. my.cnf ¿¡ ´ÙÀ½ÀÇ ¼³Á¤À» Ãß°¡ÇÑ´Ù.

old_passwords = 1

ÀÌ ¼³Á¤Àº grant ¹®ÀÇ identified ³ª password ÇÔ¼ö¸¦ ¿¹Àü ¹öÀüÀÇ ¹æ½ÄÀ¸·Î ÀÛµ¿
Çϵµ·Ï ÇÑ´Ù. Àӽ÷ΠÀÌ·¸°Ô 󸮸¦ ÇÒ¼ö ÀÖÀ¸³ª, ÃÖÁ¾ÀûÀ¸·Î´Â »õ·Î¿î ¾Ïȣȭ ¹æ
½ÄÀ» »ç¿ëÇÒ ¼ö ÀÖµµ·Ï ¼öÁ¤À» ÇÏ´Â °ÍÀÌ ÁÁ´Ù.

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