[Pdns-users] MySQL-Reconnecting with MySQL >5.0.3

Jason J. W. Williams jasonjwwilliams at gmail.com
Mon Feb 26 22:37:58 UTC 2007

It would be nice to have a config file option to enable/disable it. In
our environment, there are no zone transfers going on, and its more
important to reconnect to maximize uptime. Also, PowerDNS should
handle rollbacks properly if its going to support InnoDB. In the event
of a rollback, either the entire transfer should be re-applied or
dropped depending on your point of view.


On 2/26/07, Norbert Sendetzky <norbert at linuxnetworks.de> wrote:
> Hi Christian
> > starting in MySQL 5.0.3 the reconnect-flag in the mysqlclientlib is set to
> > 0 by default, which means no auto-reconnecting.
> >
> > Any ideas or plans to solve this? We found several "mysql server has gone
> > away" in the logfile, while the server runs perfectly.
> After reading http://dev.mysql.com/doc/refman/5.0/en/auto-reconnect.html I
> consider disabling auto-reconnect a good thing, even if you are annoyed of
> the log file entries :-)
> Auto-reconnect is very dangerous while doing an AXFR transfer because it rolls
> back the transaction and reenables auto-commit mode. This may leave your zone
> in a state where the first half of the records are missing (when a slave
> updates it's zone).
> Norbert
> --
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