Change the replica first, then the master. Each will index independently.

-- Mike

> On Sep 28, 2014, at 23:04, [email protected] wrote:
> 
> I tried to search for the answer, but couldn't find it, I would appreciate if 
> any of you could direct me to the correct chunk of documentation to find this 
> out:
>  
> We have two node ML7 setup where one of the nodes is master and other slave 
> using database replication matched by the database name. (This is NOT 
> flexible replication)
>  
> We execute queries to both hosts 24/7 but obviously write only to the primary 
> one.
>  
> We often need to add new indexes to the system and the (multi part) question 
> is:
>  
> 1. Does ML replicate the index definitions between hosts?
> 2. Does ML replicate the indexes themselves between the hosts?
> 3. What's the correct procedure to add a new index in this setup?
>  
> We currently add the indexes by hand, starting from the slave. We noticed 
> that the slave does not initiate automatic reindexing, even though we have 
> "reindexer enable" set to true and figured it's better to add the new index 
> to slave first so that it will be there when the primary starts reindexing.
>  
> So, is it required at all to add the indexes first to slave, or will ML take 
> care of the configuration changes via the replication also or does that 
> include only data?
>  
> Ville
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