If you are getting duplicate id's on the slave, then something is not setup correctly. The save should have the same ids as the master. Just because a field is auto-increment, doesn't mean you can't enter you own value. Think of auto-increment as a default value setting.

Just because a database is setup as a slave, that doesn't mean you can't use it like a typical database. You can insert, delete, update, etc. just like any other DB. Something or someone is likely adding records directly to the slave, which is then generating it's own auto- increment value.

Brent Baisley
Systems Architect


On Apr 18, 2008, at 11:36 AM, Chanchal James wrote:

Hi,

Has anyone got mysql master-slave replication setup on v4.1. Were you able
to get tables with auto_increment update properly to slave ?
If yes, please let me know. I need some advise on how to set it up to work well. I get stuck at duplicate errors quite often, and those are not real
duplicates, its just that its id on slave was already occupied by some
previous entry!!

I see mysql 5 has options like: auto-increment-increment &
auto-increment-offset , but with v4.1

Any help is appreciated.
Thanks!


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