← Back to team overview

maria-discuss team mailing list archive

Re: Don't replicate procedures in the mysql database


2016-08-29 1:25 GMT+03:00 Daniel Black <daniel.black@xxxxxxxxxxx>:
> A question for you is why is it important not to have it on the slave?

Because the slave already has this procedure with a slightly different
and different owner (definer).

> If the slave is a failover it should have the procedure.

If I wanted a failover server I would not be fiddling with replication
options and channels at all.

>> When I execute `CREATE PROCEDURE mysql.bar` on the master, this
>> procedure appears on the slave.
> Which is what replication is meant to do.

This is not consistent with creating and modifying mysql users.
That's why I'm asking.

> Its probably also best not to populate the mysql database with your
> stored procedures.

It's totally fine for maintenance procedures.
See for example

> set session sql_log_bin=0; create procedure...

This is not scalable and sometime impossible:
for the SUPER privilege, at Amazon RDS, it could break other slaves.

Follow ups