使用schema.xml而不是Solr 5.1.X的托管模式

Question

I am trying to use schema.xml with the latest version of Solr (5.1.0). It seems that by default Solr 5.1.0 uses managed schema, but I would like to use schema.xml for a specific collection.

So I create a new collection (using solr create -c my_collection on windows and copy schema.xml from

server\solr\configsets\basic_configs\conf\schema.xml

to

server\solr\my_collection\conf\schema.xml

After that I change settings in

server\solr\my_collection\conf\solrconfig.xml 

to use

<schemaFactory class="ClassicIndexSchemaFactory"/>

After doing this I get an exception when starting the server:

org.apache.solr.common.SolrException:org.apache.solr.common.SolrException:    fieldType 'booleans' not found in the schema

Am I doing something terribly wrong here? Should not this kind of logic work?

UPDATE: Stractrace looks like this:

org.apache.solr.common.SolrException: fieldType 'booleans' not found in the schema
at org.apache.solr.core.SolrCore.<init>(SolrCore.java:885)
at org.apache.solr.core.SolrCore.<init>(SolrCore.java:652)
at org.apache.solr.core.CoreContainer.create(CoreContainer.java:518)
at org.apache.solr.core.CoreContainer$1.call(CoreContainer.java:283)
at org.apache.solr.core.CoreContainer$1.call(CoreContainer.java:277)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: org.apache.solr.common.SolrException: fieldType 'booleans' not found in the schema
at org.apache.solr.update.processor.AddSchemaFieldsUpdateProcessorFactory$TypeMapping.populateValueClasses(AddSchemaFieldsUpdateProcessorFactory.java:244)
at org.apache.solr.update.processor.AddSchemaFieldsUpdateProcessorFactory.inform(AddSchemaFieldsUpdateProcessorFactory.java:170)
at org.apache.solr.core.SolrResourceLoader.inform(SolrResourceLoader.java:620)
at org.apache.solr.core.SolrCore.<init>(SolrCore.java:868)

Answer 1

The problem is that you are referencing a field type booleans that is not defined in your schema.xml file. When you create a core a file managed-schema is created in server\\solr\\my_collection\\conf\\ . Rename this file to schema.xml and restart solr with ClassicIndexSchemaFactory and it will work fine.

Answer 2

The problem that I had here was had nothing to do with actually using the booleans field type. The problem was that the newly upgraded solrconfig.xml file has a processor for unknown fields enabled by default, which needs the booleans field type, and probably some others.

These are all defined by default in the new example schema.xml , but quite possibly not in your old schema.xml .

The solution for me was to comment out the <updateRequestProcessorChain name="add-unknown-fields-to-the-schema"> section in solrconfig.xml .

Alternatively, you can probably just replace solrconfig.xml .

Answer 3

Field type {booleans} is not defined in schema.xml .

Steps to fix it,

• Remove collection
• Rename the managed-schema file to schema.xml
• Modify solrconfig.xml to replace the schemaFactory class.
• a) Remove any ManagedIndexSchemaFactory definition if it exists.
• b) Add a ClassicIndexSchemaFactory definition as shown below,

<schemaFactory class="ClassicIndexSchemaFactory"/>

• Update autoCreateFields to false in solrconfig.xml or you will get

This IndexSchema is not mutable error.

${update.autoCreateFields:false}

• Recreate collection.