I'm going to add that there is nothing wrong with the database name that is
in the query.  If the same query, with slightly different constraints and
the _exact_ same database name, is run 1000 times and 3 of them give the
Unknown database error, that rules out an application error.

Furthermore, if it is  a SQL error, then MySQL would likely return an error
that indicates a SQL error rather than an Unknown database error.

Thanks,
--
Vibol Hou
KhmerConnection
http://khmer.cc

-----Original Message-----
From: Vibol Hou [mailto:[EMAIL PROTECTED]]
Sent: Monday, May 14, 2001 4:54 PM
To: MySQL List
Subject: Error 1049 - Unknown database...


Hi,

I have a MySQL 3.23.37 server that runs on a FreeBSD 4.2 SMP box which runs
some semi-intensive web applications.  The system itself has 1GB memory.

A few times a minute, I get the following error from my applications:

MySQL Error: 1049 (Unknown database 'databasename')

The server receives about 105 queries/sec.  The queries range from simple
select statements to joins between several tables on databases no larger
than a total of 800MB and also include insert, delete, and update
statements.  A good mix of everything.

The application is able to connect, but the queries run against the database
indicate the above error 2-3 times a minute.

I've experienced this with 3.23.32 as well and upgraded to 3.23.37.

Does anyone experienced with MySQL internals know what's going on?

--
Vibol Hou
KhmerConnection
http://khmer.cc


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