Hello.
Does SHOW STATUS executed from JDBC client return increased values of this parameters? Could your server die during queries from JDBC (check the error log)? Sometimes you should increase interactive_timeout as well. A lot of variables usually could be changed using SET statement. See: http://dev.mysql.com/doc/mysql/en/system-variables.html >Sometimes when querying mySQL 4.1.11 on Linux machine I get the error >"Lost connection to MySQL server during query". Here are the symptoms > > > > 1. When running the query from the server it returns OK > 2. When running the query from another machine using the mySQL > query browser it returns OK > 3. When running the query from another machine from Java using > mySQL JDBC it fails with " Lost connection to..." > 4. When running the query from another machine using software like > EMS it fails with " Lost connection to..." > 5. The error is always after 4.7 seconds and only in "heavy" > queries (not only SELECT, even DELETES ) > > The problem is probably not in the communication parameters, like > max_allowed_packet or connection_timeout on the server because I > increased then .... > > > Does anyone know how can I control those parameters from JDBC? > "Amir Shay" <[EMAIL PROTECTED]> wrote: -- For technical support contracts, goto https://order.mysql.com/?ref=ensita This email is sponsored by Ensita.NET http://www.ensita.net/ __ ___ ___ ____ __ / |/ /_ __/ __/ __ \/ / Gleb Paharenko / /|_/ / // /\ \/ /_/ / /__ [EMAIL PROTECTED] /_/ /_/\_, /___/\___\_\___/ MySQL AB / Ensita.NET <___/ www.mysql.com -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED]
