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From Erick Erickson <>
Subject Re: How to share Schema between multicore on Solr 4.4
Date Wed, 09 Oct 2013 12:24:56 GMT

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


On Tue, Oct 8, 2013 at 8:33 PM, Shawn Heisey <> wrote:
> On 10/7/2013 6:02 AM, Dharmendra Jaiswal wrote:
>> I am using Solr 4.4 version with SolrCloud on Windows machine.
>> Somehow i am not able to share schema between multiple core.
> If you're in SolrCloud mode, then you already *are* sharing your schema.
> You are also sharing your configuration.  Both of them are in zookeeper.
> All collections (and all shards within a collection) which use a given
> config name are using the same copy.
> Any copies of your config/schema that might be on your disk are *NOT* being
> used.  If you are starting Solr with any bootstrap options, then the config
> set that is in zookeeper might be getting overwritten by whats on your disk
> when Solr restarts, but otherwise SolrCloud *only* uses zookeeper for
> config/schema. The bootstrap options are meant to be used once, and I
> actually prefer to get SolrCloud operational without using bootstrap options
> at all.
> Thanks,
> Shawn

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