Re: MyISAM / Performance / Nb of table per DataBase

2002-09-25 Thread David Bordas
DB I found my problem and why Mysql lock my table for a select. In DB fact, mysql sometimes don't use the right index and so does a 'Table DB sort' that lock my table. I modify the query to add USE INDEX DB clause and now, all seems to work well ... I just need to test DB during several days

Re: MyISAM / Performance / Nb of table per DataBase

2002-09-24 Thread David Bordas
DBI still have performance problem with my big MyISAM table. DBIn fact, mysql keep locking my table, even for doing select :( PDB That's how MyISAM works -- it uses table locks for everything. PDB Given that fact, if it didn't lock the table for reading, that would PDB allow other clients to

Re: MyISAM / Performance / Nb of table per DataBase

2002-09-24 Thread Jeremy Zawodny
On Tue, Sep 24, 2002 at 10:36:31AM +0200, David Bordas wrote: DBI still have performance problem with my big MyISAM table. DBIn fact, mysql keep locking my table, even for doing select :( PDB That's how MyISAM works -- it uses table locks for everything. PDB Given that fact, if it didn't

MyISAM / Performance / Nb of table per DataBase

2002-09-23 Thread David Bordas
Hi list, I still have performance problem with my big MyISAM table. In fact, mysql keep locking my table, even for doing select :( I don't know why but it's very very annoying. 1% of my query are search ones. Theses queries are slow, too slow. So i'm thinking about splitting my table to lot of

Re: MyISAM / Performance / Nb of table per DataBase

2002-09-23 Thread Paul DuBois
At 9:35 +0200 9/23/02, David Bordas wrote: Hi list, I still have performance problem with my big MyISAM table. In fact, mysql keep locking my table, even for doing select :( That's how MyISAM works -- it uses table locks for everything. Given that fact, if it didn't lock the table for reading,