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Posted to solr-user@lucene.apache.org by Lucas Pelegrino <lu...@gmail.com> on 2017/07/25 23:21:02 UTC
Unable to create core [collection] Caused by: null
Hey guys.
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
Not sure what to do, the error isn't very descriptive.
Re: Unable to create core [collection] Caused by: null
Posted by Lucas Pelegrino <lu...@gmail.com>.
Thanks Shawn and everyone!
Solved.
2017-07-27 18:29 GMT-04:00 Shawn Heisey <ap...@elyograg.org>:
> 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
>
>
Re: Unable to create core [collection] Caused by: null
Posted by Shawn Heisey <ap...@elyograg.org>.
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
Re: Unable to create core [collection] Caused by: null
Posted by Rick Leir <rl...@leirtech.com>.
Lucas,
What is in the log before that stackdump?
The stackdump seems to indicate that Solr is trying to run with a
managed schema. Looking at the cwiki, "When a |<schemaFactory/>|is not
explicitly declared in a |solrconfig.xml|file, Solr implicitly uses
a|ManagedIndexSchemaFactory|, which is by default|"mutable"|and keeps
schema information in a |managed-schema|file."*. So your schema.xml
would be ignored.
Have you tried using a solrconfig.xml copied from one of the examples,
perhaps with minor changes?
cheers -- Rick
*
https://cwiki.apache.org/confluence/display/solr/Schema+Factory+Definition+in+SolrConfig
On 2017-07-25 07:21 PM, Lucas Pelegrino wrote:
> Hey guys.
>
> 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
>
> Not sure what to do, the error isn't very descriptive.
>
Re: Unable to create core [collection] Caused by: null
Posted by Nawab Zada Asad Iqbal <kh...@gmail.com>.
Lucas may be hitting this issue:
https://stackoverflow.com/questions/4659151/recurring-exception-without-a-stack-trace-how-to-reset
Could you try running your server with jvm value:
-XX:-OmitStackTraceInFastThrow
?
Nawab
On Wed, Jul 26, 2017 at 11:42 AM, Anshum Gupta <an...@apple.com> wrote:
> Hi Lucas,
>
> It would be super useful if you provided more information with the
> question. A few things you might want to include are - version of Solr, how
> did you start it, stack trace from the log etc.
>
>
> -Anshum
>
>
>
> > On Jul 25, 2017, at 4:21 PM, Lucas Pelegrino <lu...@gmail.com>
> wrote:
> >
> > Hey guys.
> >
> > 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
> >
> > Not sure what to do, the error isn't very descriptive.
>
>
Re: Unable to create core [collection] Caused by: null
Posted by Anshum Gupta <an...@apple.com>.
Hi Lucas,
It would be super useful if you provided more information with the question. A few things you might want to include are - version of Solr, how did you start it, stack trace from the log etc.
-Anshum
> On Jul 25, 2017, at 4:21 PM, Lucas Pelegrino <lu...@gmail.com> wrote:
>
> Hey guys.
>
> 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
>
> Not sure what to do, the error isn't very descriptive.