On Mon, Mar 26, 2007, Pedro Le?n L?pez wrote:
>   Hello,
>   I got this error when querying MySQL 5.0.26. I use Zope 2.9.4 and
>   ZMysqlDA 2.0.9b3 (with MySQLdb 1.2.1_p2). MySQL do not gone away.
>   This error only happens after exactly 8 hours of database inactivity.
>   I found some information about this error.
>   It seems is caused because MySQL close the connection after 8 hours,
>   this time is stored at 'wait_timeout' system variable in the MySQL
>   server.
>   I'm doing an application for school where isn't there activity at
>   night.

Given that mysql (or any other database) may well be restarted as part of
log rotation and cron maintenance, you may well want to not depend on
continuously open connections.

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