My deleted collection is not present in the Admin UI.  I was able to fix my 
problem by deleting the core using the Core API and its unload command.


Alexandre Drouin


-----Original Message-----
From: Alexandre Rafalovitch [mailto:arafa...@gmail.com] 
Sent: July 28, 2016 10:17 AM
To: solr-user <solr-user@lucene.apache.org>
Subject: Re: Unable to create core
Importance: High

What do you see in the Admin UI? Is it there? Also, deleting the core
- I believe - still leaves the underlying directory on the filesystem in place. 
So perhaps it is actually complaining about the leftover filesystem directory 
when you try to create a new core with the same name/location. Check the 
filesystem for that directory (customer_shard1_replica1).

Regards,
   Alex.
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On 29 July 2016 at 00:06, Alexandre Drouin <alexandre.dro...@orckestra.com> 
wrote:
> Hi,
>
> While I was testing I deleted my collection (customer) using the collection 
> API and this step succeeded, however if I try to create a new collection 
> using the same name I get the following error: Core with name 
> 'customer_shard1_replica1' already exists."
> I am using SolrCloud 6.0.1 and ZK 3.4.8.
>
> How can I remove the core that should have been deleted when I removed my 
> collection?
>
> Thanks,
> Alexandre Drouin

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