Thanks, I'll try that!
Robert
On Tue, 2003-01-14 at 14:54, Dyego Souza do Carmo wrote:
Dobrý den,
terça-feira, 14 de janeiro de 2003, 16:58:08, napsal jste:
RC I'm new to administering MySQL, so bear with me:
RC We run a large MySQL database with one of the tables amassing
RC over 40 million entries. It somehow got corrupt and now I'm
RC running isamchk -o (-r failed) and it's in its 110th hour and
RC it's getting slower. I'm running 3.23.38 and cannot upgrade
RC due to compatibility issues. Also, the tables are quite old
RC and are in ISAM format. Here's a couple of questions:
RC Will stopping the repair midway affect the data/table?
Upgrade to 3.23.54 ( 3.23.54 is compatible with 3.23.38 )
RC Can I convert a corrupted table to MyISAM?
yes... run the command: ALTER TABLE table_name Type=MyISAM;
the mysql atomically creates a MyISAM table and new index to the table
RC How will that affect my data?
Your data in MyISAM is more safe than ISAM
RC Will myisamchk run faster in fixing the corruption (in general,
RC I know there's not enough information)?
more less.
Upgrade your mysql to 3.23.54 ( max ) and use the InnoDB tables (
http://www.innodb.com ), this table type is VERY SECURE than MyISAM.
The InnoDB tables are stored in a tablespace and have a crash
recovery. To convert your tables from ISAM to Innodb is simple.
1 - Configure the InnoDB options em my.cnf
2 - run ALTER TABLE table_name Type=InnoDB;
and have fun ! ;)
ps: ISAM support is deprecated and is not present in next version of
mysql ( 4.x )
sql,query
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++ Dyego Souza do Carmo ++ Dep. Desenvolvimento
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