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From Ryan McKinley <>
Subject Re: Is there a clean way to determine whether a core exists?
Date Fri, 05 Dec 2008 05:58:50 GMT

On Dec 4, 2008, at 3:57 PM, Dean Thompson wrote:

> Thanks for the quick response, Ryan!
> Actually, my admin/ping call gives me a 404 if the core doesn't  
> exist, which seemed reasonable.  I get the 500 if the core *did*  
> exist.

aaah -- check what ping query you have configured and make sure that  
is a valid query.  If you use the example one and then change your  
schema it may be referencing fields that don't exist and give you the  

> Thanks for the suggestion of using the select URL, but that gives me:
> java.lang.NullPointerException
> 	at org.apache.solr.common.util.StrUtils.splitSmart(

This is a really stupid error we need to fix -- it should actually  
say: missing required parameter "q"


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