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From Shawn Heisey <>
Subject Re: How to share Schema between multicore on Solr 4.4
Date Wed, 09 Oct 2013 16:17:17 GMT
On 10/9/2013 6:24 AM, Erick Erickson wrote:
> Hmmm, I hadn't thought about that before. The shareSchema
> stuff is keyed off the absolute directory (and timestamp) of
> the schema.xml file associated with a core and is about
> sharing the internal object that holds the parsed schema.
> Do you know for sure if the fact that this is coming from ZK
> actually shares the schema object? 'Cause I've never
> looked to see and it would be a good thing to have in my
> head...

With SolrCloud, I have no idea whether the actual internal objects are 
shared.  Just now I tried to figure that out from the code, but I don't 
already have an understanding of how that code works, and a quick glance 
isn't enough to gain that knowledge.I can guarantee that you have a much 
deeper understanding of those internals than I do!

My comments were to indicate that SolrCloud creates a situation where 
the config/schema are shared in the sense that there's only one 
canonical copy.


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