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We currently have one master server that is replicated to two read-only slaves. We are adding to the schema. Is it recommended to reload the master first or the slaves?

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I'm not sure, but there is some logic to the fact when you add a schema, that you restart the master first, who then propagates it to the slaves no ? I mean that's how it works in MySQL or most master/slaves configuration. –  Lucas Kauffman Dec 14 '11 at 21:58

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up vote 4 down vote accepted

When adding a new schema, reload the slaves first, so that they won't receive updates of unknown object-types at any time.

Otherwise if you would have to remove a schema, do it on the master first.

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Make's total sense. Thank you! –  Belmin Fernandez Dec 14 '11 at 22:01
    
...and it should go without saying, but I'll say it anyway: Make a backup first! –  voretaq7 Dec 14 '11 at 22:06
    
BTW: I haven't asked if you're using slurpd or syncrepl for replication ... but it makes no difference therefore –  powo Dec 14 '11 at 22:44
    
Slurpd in my case. –  Belmin Fernandez Dec 14 '11 at 23:37

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