On 7/25/2017 5:21 PM, Lucas Pelegrino wrote:
> Trying to make solr work here, but I'm getting this error from this command:
>
> $ ./solr create -c products -d /Users/lucaswxp/reduza-solr/products/conf/
>
> Error CREATEing SolrCore 'products': Unable to create core [products]
> Caused by: null
>
> I'm posting my solrconf.xml, schema.xml and data-config.xml here:
> https://pastebin.com/fnYK9pSJ
>
> The debug from log solr: https://pastebin.com/kVLMvBwZ
Problems with my email client. Meant to send this to the list, but only
sent it to Lucas. Resending to the list.
In the exception you got, I see that the final "Caused by" section
starts with this:
Caused by: java.lang.NullPointerException
at
org.apache.solr.response.SchemaXmlWriter.writeResponse(SchemaXmlWriter.java:85)
Line 85 of that source code file is this:
writeAttr(IndexSchema.NAME,
schemaProperties.get(IndexSchema.NAME).toString());
As Rick noted, the schema should be named "managed-schema" rather than
"schema.xml", but Solr *should* see the schema.xml, copy it to
managed-schema, rename it to something else, and continue loading. I'm
proceeding based on the idea that Solr *has* found your file.
Looking at your schema, you have not given the schema a name, and that's
what is causing the problem. Therefore when the code mentioned above
tried to get the name of the schema, it got a null. Java can't perform
an operation (in this case, toString() is the one being called) on a
null pointer. Here is the relevant line from one of the example schemas
included with Solr 6.6 showing how to give the schema a name:
<schema name="example-basic" version="1.6">
The error could be more descriptive, but a better option is to work
without creating an error at all. I opened an issue to deal with the
problem, and I'm expecting it to be fixed in the next release of Solr:
https://issues.apache.org/jira/browse/SOLR-11153
Thanks,
Shawn
