facet-exception.log

curl 'http://192.168.56.101:8983/solr/my_collection/select?wt=json&fl=id&fq=index_type:foobar&group=true&group.field=year_make_model&group.facet=true&facet=true&facet.field=year'

ull:org.apache.solr.common.SolrException: Exception during facet.field: year
    at org.apache.solr.request.SimpleFacets$3.call(SimpleFacets.java:627)
    at org.apache.solr.request.SimpleFacets$3.call(SimpleFacets.java:612)
    at java.util.concurrent.FutureTask.run(FutureTask.java:262)
    at org.apache.solr.request.SimpleFacets$2.execute(SimpleFacets.java:566)
    at org.apache.solr.request.SimpleFacets.getFacetFieldCounts(SimpleFacets.java:637)
    at org.apache.solr.request.SimpleFacets.getFacetCounts(SimpleFacets.java:280)
    at org.apache.solr.handler.component.FacetComponent.process(FacetComponent.java:106)
    at org.apache.solr.handler.component.SearchHandler.handleRequestBody(SearchHandler.java:222)
    at org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:143)
    at org.apache.solr.core.SolrCore.execute(SolrCore.java:1984)
    at org.apache.solr.servlet.SolrDispatchFilter.execute(SolrDispatchFilter.java:829)
    at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:446)
    at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:220)
    at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1419)
    at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:455)
    at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:137)
    at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:557)
    at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:231)
    at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1075)
    at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:384)
    at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:193)
    at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1009)
    at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135)
    at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:255)
    at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:154)
    at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116)
    at org.eclipse.jetty.server.Server.handle(Server.java:368)
    at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:489)
    at org.eclipse.jetty.server.BlockingHttpConnection.handleRequest(BlockingHttpConnection.java:53)
    at org.eclipse.jetty.server.AbstractHttpConnection.content(AbstractHttpConnection.java:953)
    at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.content(AbstractHttpConnection.java:1014)
    at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:861)
    at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:240)
    at org.eclipse.jetty.server.BlockingHttpConnection.handle(BlockingHttpConnection.java:72)
    at org.eclipse.jetty.server.bio.SocketConnector$ConnectorEndPoint.run(SocketConnector.java:264)
    at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:608)
    at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:543)
    at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.IllegalStateException: unexpected docvalues type NUMERIC for field 'year' (expected=SORTED). Use UninvertingReader or index with docvalues.
    at org.apache.lucene.index.DocValues.checkField(DocValues.java:208)
    at org.apache.lucene.index.DocValues.getSorted(DocValues.java:264)
    at org.apache.lucene.search.grouping.term.TermGroupFacetCollector$SV.doSetNextReader(TermGroupFacetCollector.java:135)
    at org.apache.lucene.search.SimpleCollector.getLeafCollector(SimpleCollector.java:33)
    at org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java:705)
    at org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java:428)
    at org.apache.solr.request.SimpleFacets.getGroupedCounts(SimpleFacets.java:532)
    at org.apache.solr.request.SimpleFacets.getTermCounts(SimpleFacets.java:458)
    at org.apache.solr.request.SimpleFacets.getTermCounts(SimpleFacets.java:381)
    at org.apache.solr.request.SimpleFacets$3.call(SimpleFacets.java:621)
    ... 37 more

org.apache.solr.client.solrj.impl.HttpSolrClient$RemoteSolrException: Error from server at http://10.0.2.15:8983/solr/my_collection_shard2_replica1: Exception during facet.field: year
    at org.apache.solr.client.solrj.impl.HttpSolrClient.executeMethod(HttpSolrClient.java:556)
    at org.apache.solr.client.solrj.impl.HttpSolrClient.request(HttpSolrClient.java:233)
    at org.apache.solr.client.solrj.impl.HttpSolrClient.request(HttpSolrClient.java:225)
    at org.apache.solr.client.solrj.SolrClient.request(SolrClient.java:1220)
    at org.apache.solr.handler.component.HttpShardHandler$1.call(HttpShardHandler.java:221)
    at org.apache.solr.handler.component.HttpShardHandler$1.call(HttpShardHandler.java:184)
    at java.util.concurrent.FutureTask.run(FutureTask.java:262)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
    at java.util.concurrent.FutureTask.run(FutureTask.java:262)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

schema.xml

<?xml version="1.0" ?>
<schema name="schema" version="1.2">
    <fields>
        <!-- solar cloud version field -->
        <field name="_version_" type="long" indexed="true" stored="true"/>

        <!-- Common fields -->
        <field name="id" type="string" indexed="true" stored="true"  multiValued="false" required="true"/>
        <field name="index_type" type="string" indexed="true"  stored="true"  multiValued="false" required="true"/>

        <field name="year" type="int" indexed="true" stored="true"/>
        <field name="model" type="string" indexed="true" stored="true"/>
        <field name="year_make_model" type="string" indexed="true" stored="true"/>
    </fields>

    <!-- Field Types -->
    <types>
        <fieldType name="string" class="solr.StrField" sortMissingLast="true" />
        <fieldType name="boolean" class="solr.BoolField" sortMissingLast="true"/>
        <fieldType name="int" class="solr.TrieIntField" precisionStep="0" positionIncrementGap="0"/>
        <fieldType name="float" class="solr.TrieFloatField" precisionStep="0" positionIncrementGap="0"/>
        <fieldType name="long" class="solr.TrieLongField" precisionStep="0" positionIncrementGap="0"/>
        <fieldType name="double" class="solr.TrieDoubleField" precisionStep="0" positionIncrementGap="0"/>
        <fieldType name="date" class="solr.TrieDateField" precisionStep="0" positionIncrementGap="0"/>
        <fieldType name="text_ngram" class="solr.TextField" positionIncrementGap="100">
            <analyzer type="index">
                <tokenizer class="solr.StandardTokenizerFactory"/>
                <filter class="solr.StopFilterFactory" ignoreCase="true" words="stopwords.txt" />
                <filter class="solr.LowerCaseFilterFactory"/>
                <filter class="solr.EdgeNGramFilterFactory" minGramSize="2" maxGramSize="15"/>
            </analyzer>
            <analyzer type="query">
                <tokenizer class="solr.StandardTokenizerFactory"/>
                <filter class="solr.StopFilterFactory" ignoreCase="true" words="stopwords.txt" />
                <filter class="solr.SynonymFilterFactory" synonyms="synonyms.txt" ignoreCase="true" expand="true"/>
                <filter class="solr.LowerCaseFilterFactory"/>
            </analyzer>
        </fieldType>
        <fieldType name="text_general" class="solr.TextField" positionIncrementGap="100">
            <analyzer type="index">
                <tokenizer class="solr.StandardTokenizerFactory"/>
                <filter class="solr.StopFilterFactory" ignoreCase="true" words="stopwords.txt" />
                <filter class="solr.LowerCaseFilterFactory"/>
                <filter class="solr.EdgeNGramFilterFactory" minGramSize="2" maxGramSize="15"/>
            </analyzer>
            <analyzer type="query">
                <tokenizer class="solr.StandardTokenizerFactory"/>
                <filter class="solr.StopFilterFactory" ignoreCase="true" words="stopwords.txt" />
                <filter class="solr.SynonymFilterFactory" synonyms="synonyms.txt" ignoreCase="true" expand="true"/>
                <filter class="solr.LowerCaseFilterFactory"/>
            </analyzer>
        </fieldType>

        <fieldType name="location_rpt" class="solr.SpatialRecursivePrefixTreeFieldType" geo="true" distErrPct="0.025" maxDistErr="0.000009" units="degrees" />
    </types>

    <uniqueKey>id</uniqueKey>

    <defaultSearchField>name</defaultSearchField>

    <solrQueryParser defaultOperator="OR"/>
</schema>