Thanks Shawn for your response. So, from your email, it seems that unique_key validation is handled differently from other field validation. But what i am not very clear, is what the unique_key has to do with finding the live server? Becase if there is any mismatch in the unique_key, it is throwing SolrServerException saying "No live servers found".. Because live servers are being sourced by clusterstate of zookeeper. so i feel the unique key is particular to a core/index. So looking to understand the nature of this exception. Please explain me how unique_key and live servers are related
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