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Posted to commits@lucene.apache.org by da...@apache.org on 2018/11/02 11:17:00 UTC

[51/56] lucene-solr:jira/gradle: Adding solr:contrib:clustering module

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/887b8089/solr/contrib/clustering/src/test/resources/clustering/solr/collection1/conf/solrconfig.xml
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diff --git a/solr/contrib/clustering/src/test/resources/clustering/solr/collection1/conf/solrconfig.xml b/solr/contrib/clustering/src/test/resources/clustering/solr/collection1/conf/solrconfig.xml
new file mode 100644
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--- /dev/null
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@@ -0,0 +1,446 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<!--
+ Licensed to the Apache Software Foundation (ASF) under one or more
+ contributor license agreements.  See the NOTICE file distributed with
+ this work for additional information regarding copyright ownership.
+ The ASF licenses this file to You under the Apache License, Version 2.0
+ (the "License"); you may not use this file except in compliance with
+ the License.  You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+
+<config>
+  <luceneMatchVersion>${tests.luceneMatchVersion:LATEST}</luceneMatchVersion>
+
+  <!-- Used to specify an alternate directory to hold all index data
+       other than the default ./data under the Solr home.
+       If replication is in use, this should match the replication configuration. -->
+  <dataDir>${solr.data.dir:}</dataDir>
+
+  <directoryFactory name="DirectoryFactory" class="${solr.directoryFactory:solr.RAMDirectoryFactory}"/>
+  <schemaFactory class="ClassicIndexSchemaFactory"/>
+
+  <indexConfig>
+    <lockType>single</lockType>
+    <useCompoundFile>${useCompoundFile:false}</useCompoundFile>
+  </indexConfig>
+  
+  <!--  Enables JMX if and only if an existing MBeanServer is found, use 
+      this if you want to configure JMX through JVM parameters. Remove
+      this to disable exposing Solr configuration and statistics to JMX.
+      
+    If you want to connect to a particular server, specify the agentId
+    e.g. <jmx agentId="myAgent" />
+    
+    If you want to start a new MBeanServer, specify the serviceUrl
+    e.g <jmx serviceurl="service:jmx:rmi:///jndi/rmi://localhost:9999/solr" />
+    
+    For more details see http://wiki.apache.org/solr/SolrJmx
+  -->
+  <jmx />
+
+  <!-- the default high-performance update handler -->
+  <updateHandler class="solr.DirectUpdateHandler2">
+
+    <!-- A prefix of "solr." for class names is an alias that
+         causes solr to search appropriate packages, including
+         org.apache.solr.(search|update|request|core|analysis)
+     -->
+
+    <!-- Perform a <commit/> automatically under certain conditions:
+         maxDocs - number of updates since last commit is greater than this
+         maxTime - oldest uncommited update (in ms) is this long ago
+    <autoCommit> 
+      <maxDocs>10000</maxDocs>
+      <maxTime>1000</maxTime> 
+    </autoCommit>
+    -->
+
+  </updateHandler>
+
+
+  <query>
+    <!-- Maximum number of clauses in a boolean query... can affect
+        range or prefix queries that expand to big boolean
+        queries.  An exception is thrown if exceeded.  -->
+    <maxBooleanClauses>1024</maxBooleanClauses>
+
+    
+    <!-- Cache used by SolrIndexSearcher for filters (DocSets),
+         unordered sets of *all* documents that match a query.
+         When a new searcher is opened, its caches may be prepopulated
+         or "autowarmed" using data from caches in the old searcher.
+         autowarmCount is the number of items to prepopulate.  For LRUCache,
+         the autowarmed items will be the most recently accessed items.
+       Parameters:
+         class - the SolrCache implementation (currently only LRUCache)
+         size - the maximum number of entries in the cache
+         initialSize - the initial capacity (number of entries) of
+           the cache.  (seel java.util.HashMap)
+         autowarmCount - the number of entries to prepopulate from
+           and old cache.
+         -->
+    <filterCache
+      class="solr.LRUCache"
+      size="512"
+      initialSize="512"
+      autowarmCount="128"/>
+
+   <!-- queryResultCache caches results of searches - ordered lists of
+         document ids (DocList) based on a query, a sort, and the range
+         of documents requested.  -->
+    <queryResultCache
+      class="solr.LRUCache"
+      size="512"
+      initialSize="512"
+      autowarmCount="32"/>
+
+  <!-- documentCache caches Lucene Document objects (the stored fields for each document).
+       Since Lucene internal document ids are transient, this cache will not be autowarmed.  -->
+    <documentCache
+      class="solr.LRUCache"
+      size="512"
+      initialSize="512"
+      autowarmCount="0"/>
+
+    <!-- If true, stored fields that are not requested will be loaded lazily.
+
+    This can result in a significant speed improvement if the usual case is to
+    not load all stored fields, especially if the skipped fields are large compressed
+    text fields.
+    -->
+    <enableLazyFieldLoading>true</enableLazyFieldLoading>
+
+    <!-- Example of a generic cache.  These caches may be accessed by name
+         through SolrIndexSearcher.getCache(),cacheLookup(), and cacheInsert().
+         The purpose is to enable easy caching of user/application level data.
+         The regenerator argument should be specified as an implementation
+         of solr.search.CacheRegenerator if autowarming is desired.  -->
+    <!--
+    <cache name="myUserCache"
+      class="solr.LRUCache"
+      size="4096"
+      initialSize="1024"
+      autowarmCount="1024"
+      regenerator="org.mycompany.mypackage.MyRegenerator"
+      />
+    -->
+
+   <!-- An optimization that attempts to use a filter to satisfy a search.
+         If the requested sort does not include score, then the filterCache
+         will be checked for a filter matching the query. If found, the filter
+         will be used as the source of document ids, and then the sort will be
+         applied to that.
+    <useFilterForSortedQuery>true</useFilterForSortedQuery>
+   -->
+
+   <!-- An optimization for use with the queryResultCache.  When a search
+         is requested, a superset of the requested number of document ids
+         are collected.  For example, if a search for a particular query
+         requests matching documents 10 through 19, and queryWindowSize is 50,
+         then documents 0 through 49 will be collected and cached.  Any further
+         requests in that range can be satisfied via the cache.  -->
+    <queryResultWindowSize>50</queryResultWindowSize>
+    
+    <!-- Maximum number of documents to cache for any entry in the
+         queryResultCache. -->
+    <queryResultMaxDocsCached>200</queryResultMaxDocsCached>
+
+    <!-- This entry enables an int hash representation for filters (DocSets)
+         when the number of items in the set is less than maxSize.  For smaller
+         sets, this representation is more memory efficient, more efficient to
+         iterate over, and faster to take intersections.  -->
+    <HashDocSet maxSize="3000" loadFactor="0.75"/>
+
+    <!-- a newSearcher event is fired whenever a new searcher is being prepared
+         and there is a current searcher handling requests (aka registered). -->
+    <!-- QuerySenderListener takes an array of NamedList and executes a
+         local query request for each NamedList in sequence. -->
+    <listener event="newSearcher" class="solr.QuerySenderListener">
+      <arr name="queries">
+        <lst> <str name="q">solr</str> <str name="start">0</str> <str name="rows">10</str> </lst>
+        <lst> <str name="q">rocks</str> <str name="start">0</str> <str name="rows">10</str> </lst>
+        <lst><str name="q">static newSearcher warming query from solrconfig.xml</str></lst>
+      </arr>
+    </listener>
+
+    <!-- a firstSearcher event is fired whenever a new searcher is being
+         prepared but there is no current registered searcher to handle
+         requests or to gain autowarming data from. -->
+    <listener event="firstSearcher" class="solr.QuerySenderListener">
+      <arr name="queries">
+        <lst> <str name="q">fast_warm</str> <str name="start">0</str> <str name="rows">10</str> </lst>
+        <lst><str name="q">static firstSearcher warming query from solrconfig.xml</str></lst>
+      </arr>
+    </listener>
+
+    <!-- If a search request comes in and there is no current registered searcher,
+         then immediately register the still warming searcher and use it.  If
+         "false" then all requests will block until the first searcher is done
+         warming. -->
+    <useColdSearcher>false</useColdSearcher>
+
+  </query>
+
+  <requestDispatcher>
+    <!--Make sure your system has some authentication before enabling remote streaming!
+    <requestParsers enableRemoteStreaming="false" multipartUploadLimitInKB="-1" />
+    -->
+
+    <!-- Set HTTP caching related parameters (for proxy caches and clients).
+          
+         To get the behaviour of Solr 1.2 (ie: no caching related headers)
+         use the never304="true" option and do not specify a value for
+         <cacheControl>
+    -->
+    <!-- <httpCaching never304="true"> -->
+    <httpCaching lastModifiedFrom="openTime"
+                 etagSeed="Solr">
+       <!-- lastModFrom="openTime" is the default, the Last-Modified value
+            (and validation against If-Modified-Since requests) will all be
+            relative to when the current Searcher was opened.
+            You can change it to lastModFrom="dirLastMod" if you want the
+            value to exactly corrispond to when the physical index was last
+            modified.
+               
+            etagSeed="..." is an option you can change to force the ETag
+            header (and validation against If-None-Match requests) to be
+            differnet even if the index has not changed (ie: when making
+            significant changes to your config file)
+
+            lastModifiedFrom and etagSeed are both ignored if you use the
+            never304="true" option.
+       -->
+       <!-- If you include a <cacheControl> directive, it will be used to
+            generate a Cache-Control header, as well as an Expires header
+            if the value contains "max-age="
+               
+            By default, no Cache-Control header is generated.
+
+            You can use the <cacheControl> option even if you have set
+            never304="true"
+       -->
+       <!-- <cacheControl>max-age=30, public</cacheControl> -->
+    </httpCaching>
+  </requestDispatcher>
+
+  <requestHandler name="/select" class="solr.SearchHandler">
+    <!-- default values for query parameters -->
+     <lst name="defaults">
+       <str name="echoParams">explicit</str>
+       <!-- 
+       <int name="rows">10</int>
+       <str name="fl">*</str>
+       <str name="version">2.1</str>
+        -->
+     </lst>
+    <arr name="last-components">
+      <str>clustering</str>
+    </arr>
+  </requestHandler>
+
+
+  <requestHandler name="docClustering" class="solr.SearchHandler">
+    <!-- default values for query parameters -->
+     <lst name="defaults">
+       <str name="echoParams">explicit</str>
+       <!--
+       <int name="rows">10</int>
+       <str name="fl">*</str>
+       <str name="version">2.1</str>
+        -->
+     </lst>
+    <arr name="last-components">
+      <str>doc-clustering</str>
+    </arr>
+  </requestHandler>
+
+  <!-- DisMaxRequestHandler allows easy searching across multiple fields
+       for simple user-entered phrases.  Its implementation is now
+       just the standard SearchHandler with a default query parser
+       of "dismax". 
+       see http://wiki.apache.org/solr/DisMaxRequestHandler
+   -->
+
+
+  <searchComponent class="org.apache.solr.handler.clustering.ClusteringComponent" name="clustering">
+    <!-- Declare an engine -->
+    <lst name="engine">
+      <!-- The name, only one can be named "default" -->
+      <str name="name">default</str>
+      <str name="carrot.algorithm">org.carrot2.clustering.lingo.LingoClusteringAlgorithm</str>
+    </lst>
+    <lst name="engine">
+      <str name="name">stc</str>
+      <str name="carrot.algorithm">org.carrot2.clustering.stc.STCClusteringAlgorithm</str>
+    </lst>
+    <lst name="engine">
+      <str name="name">mock</str>
+      <str name="carrot.algorithm">org.apache.solr.handler.clustering.carrot2.MockClusteringAlgorithm</str>
+    </lst>
+    <lst name="engine">
+      <str name="name">mock-external-attrs</str>
+      <str name="carrot.algorithm">org.apache.solr.handler.clustering.carrot2.MockClusteringAlgorithm</str>
+      <!-- takes precedence over external XML -->
+      <int name="MockClusteringAlgorithm.labels">4</int>
+    </lst>
+    <lst name="engine">
+      <str name="name">echo</str>
+      <str name="carrot.algorithm">org.apache.solr.handler.clustering.carrot2.EchoClusteringAlgorithm</str>
+    </lst>
+    <lst name="engine">
+      <str name="name">lexical-resource-check</str>
+      <str name="carrot.algorithm">org.apache.solr.handler.clustering.carrot2.LexicalResourcesCheckClusteringAlgorithm</str>
+    </lst>
+    <lst name="engine">
+      <str name="name">lexical-resource-check-custom-resource-dir</str>
+      <str name="carrot.algorithm">org.apache.solr.handler.clustering.carrot2.LexicalResourcesCheckClusteringAlgorithm</str>
+      <str name="carrot.resourcesDir">clustering/custom</str>
+    </lst>
+    <lst name="engine">
+      <str name="name">custom-duplicating-tokenizer</str>
+      <str name="carrot.algorithm">org.apache.solr.handler.clustering.carrot2.EchoTokensClusteringAlgorithm</str>
+      <str name="PreprocessingPipeline.tokenizerFactory">org.apache.solr.handler.clustering.carrot2.DuplicatingTokenizerFactory</str>
+    </lst>
+    <lst name="engine">
+      <str name="name">custom-duplicating-stemmer</str>
+      <str name="carrot.algorithm">org.apache.solr.handler.clustering.carrot2.EchoStemsClusteringAlgorithm</str>
+      <str name="PreprocessingPipeline.stemmerFactory">org.apache.solr.handler.clustering.carrot2.DuplicatingStemmerFactory</str>
+    </lst>
+  </searchComponent>
+
+  <searchComponent class="org.apache.solr.handler.clustering.ClusteringComponent" name="doc-clustering">
+    <!-- Declare an engine -->
+    <lst name="engine">
+      <!-- The name, only one can be named "default" -->
+      <str name="name">mock</str>
+      <str name="classname">org.apache.solr.handler.clustering.MockDocumentClusteringEngine</str>
+    </lst>
+  </searchComponent>
+ 
+
+  <searchComponent class="org.apache.solr.handler.clustering.ClusteringComponent" name="clustering-name-default">
+    <lst name="engine">
+      <str name="name">stc</str>
+      <str name="carrot.algorithm">org.carrot2.clustering.stc.STCClusteringAlgorithm</str>
+    </lst>
+    <lst name="engine">
+      <str name="name">default</str>
+      <str name="carrot.algorithm">org.carrot2.clustering.lingo.LingoClusteringAlgorithm</str>
+    </lst>
+    <lst name="engine">
+      <str name="name">mock</str>
+      <str name="carrot.algorithm">org.apache.solr.handler.clustering.carrot2.MockClusteringAlgorithm</str>
+    </lst>
+  </searchComponent>
+
+  <searchComponent class="org.apache.solr.handler.clustering.ClusteringComponent" name="clustering-name-decl-order">
+    <lst name="engine">
+      <bool name="optional">true</bool>
+      <str name="name">unavailable</str>
+      <str name="carrot.algorithm">org.carrot2.clustering.lingo.UnavailableAlgorithm</str>
+    </lst>
+    <lst name="engine">
+      <str name="name">lingo</str>
+      <str name="carrot.algorithm">org.carrot2.clustering.lingo.LingoClusteringAlgorithm</str>
+    </lst>
+    <lst name="engine">
+      <str name="name">stc</str>
+      <str name="carrot.algorithm">org.carrot2.clustering.stc.STCClusteringAlgorithm</str>
+    </lst>
+    <lst name="engine">
+      <str name="name">mock</str>
+      <str name="carrot.algorithm">org.apache.solr.handler.clustering.carrot2.MockClusteringAlgorithm</str>
+    </lst>
+  </searchComponent>
+  
+  <searchComponent class="org.apache.solr.handler.clustering.ClusteringComponent" name="clustering-name-dups">
+    <lst name="engine">
+      <str name="carrot.algorithm">org.carrot2.clustering.lingo.LingoClusteringAlgorithm</str>
+    </lst>
+    <lst name="engine">
+      <str name="carrot.algorithm">org.carrot2.clustering.stc.STCClusteringAlgorithm</str>
+    </lst>
+    <lst name="engine">
+      <str name="carrot.algorithm">org.apache.solr.handler.clustering.carrot2.MockClusteringAlgorithm</str>
+    </lst>
+  </searchComponent>
+
+  <highlighting>
+   <!-- Configure the standard fragmenter -->
+   <!-- This could most likely be commented out in the "default" case -->
+   <fragmenter name="gap" class="org.apache.solr.highlight.GapFragmenter" default="true">
+    <lst name="defaults">
+     <int name="hl.fragsize">100</int>
+    </lst>
+   </fragmenter>
+
+   <!-- A regular-expression-based fragmenter (f.i., for sentence extraction) -->
+   <fragmenter name="regex" class="org.apache.solr.highlight.RegexFragmenter">
+    <lst name="defaults">
+      <!-- slightly smaller fragsizes work better because of slop -->
+      <int name="hl.fragsize">70</int>
+      <!-- allow 50% slop on fragment sizes -->
+      <float name="hl.regex.slop">0.5</float> 
+      <!-- a basic sentence pattern -->
+      <str name="hl.regex.pattern">[-\w ,/\n\"']{20,200}</str>
+    </lst>
+   </fragmenter>
+   
+   <!-- Configure the standard formatter -->
+   <formatter name="html" class="org.apache.solr.highlight.HtmlFormatter" default="true">
+    <lst name="defaults">
+     <str name="hl.simple.pre"><![CDATA[<em>]]></str>
+     <str name="hl.simple.post"><![CDATA[</em>]]></str>
+    </lst>
+   </formatter>
+  </highlighting>
+  
+  
+  <!-- queryResponseWriter plugins... query responses will be written using the
+    writer specified by the 'wt' request parameter matching the name of a registered
+    writer.
+    The "default" writer is the default and will be used if 'wt' is not specified 
+    in the request. XMLResponseWriter will be used if nothing is specified here.
+    The json, python, and ruby writers are also available by default.
+
+    <queryResponseWriter name="xml" class="solr.XMLResponseWriter" default="true"/>
+    <queryResponseWriter name="json" class="solr.JSONResponseWriter"/>
+    <queryResponseWriter name="python" class="solr.PythonResponseWriter"/>
+    <queryResponseWriter name="ruby" class="solr.RubyResponseWriter"/>
+    <queryResponseWriter name="php" class="solr.PHPResponseWriter"/>
+    <queryResponseWriter name="phps" class="solr.PHPSerializedResponseWriter"/>
+
+    <queryResponseWriter name="custom" class="com.example.MyResponseWriter"/>
+  -->
+
+  <!-- XSLT response writer transforms the XML output by any xslt file found
+       in Solr's conf/xslt directory.  Changes to xslt files are checked for
+       every xsltCacheLifetimeSeconds.  
+   -->
+  <queryResponseWriter name="xslt" class="solr.XSLTResponseWriter">
+    <int name="xsltCacheLifetimeSeconds">5</int>
+  </queryResponseWriter> 
+
+
+  <!-- example of registering a query parser
+  <queryParser name="lucene" class="org.apache.solr.search.LuceneQParserPlugin"/>
+  -->
+
+  <!-- example of registering a custom function parser 
+  <valueSourceParser name="myfunc" class="com.mycompany.MyValueSourceParser" />
+  -->
+    
+  <!-- config for the admin interface --> 
+  <admin>
+    <defaultQuery>solr</defaultQuery>
+  </admin>
+
+</config>

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/887b8089/solr/contrib/clustering/src/test/resources/clustering/solr/collection1/conf/spellings.txt
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diff --git a/solr/contrib/clustering/src/test/resources/clustering/solr/collection1/conf/spellings.txt b/solr/contrib/clustering/src/test/resources/clustering/solr/collection1/conf/spellings.txt
new file mode 100644
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--- /dev/null
+++ b/solr/contrib/clustering/src/test/resources/clustering/solr/collection1/conf/spellings.txt
@@ -0,0 +1,2 @@
+pizza
+history
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/887b8089/solr/contrib/clustering/src/test/resources/clustering/solr/collection1/conf/stopwords.txt
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diff --git a/solr/contrib/clustering/src/test/resources/clustering/solr/collection1/conf/stopwords.txt b/solr/contrib/clustering/src/test/resources/clustering/solr/collection1/conf/stopwords.txt
new file mode 100644
index 0000000..54f0b99
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+++ b/solr/contrib/clustering/src/test/resources/clustering/solr/collection1/conf/stopwords.txt
@@ -0,0 +1,59 @@
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+#-----------------------------------------------------------------------
+# a couple of test stopwords to test that the words are really being
+# configured from this file:
+stopworda
+stopwordb
+
+#Standard english stop words taken from Lucene's StopAnalyzer
+a
+an
+and
+are
+as
+at
+be
+but
+by
+for
+if
+in
+into
+is
+it
+no
+not
+of
+on
+or
+s
+such
+t
+that
+the
+their
+then
+there
+these
+they
+this
+to
+was
+will
+with
+solrownstopword
+

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/887b8089/solr/contrib/clustering/src/test/resources/clustering/solr/collection1/conf/synonyms.txt
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diff --git a/solr/contrib/clustering/src/test/resources/clustering/solr/collection1/conf/synonyms.txt b/solr/contrib/clustering/src/test/resources/clustering/solr/collection1/conf/synonyms.txt
new file mode 100644
index 0000000..26d237a
--- /dev/null
+++ b/solr/contrib/clustering/src/test/resources/clustering/solr/collection1/conf/synonyms.txt
@@ -0,0 +1,31 @@
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+#-----------------------------------------------------------------------
+#some test synonym mappings unlikely to appear in real input text
+aaa => aaaa
+bbb => bbbb1 bbbb2
+ccc => cccc1,cccc2
+a\=>a => b\=>b
+a\,a => b\,b
+fooaaa,baraaa,bazaaa
+
+# Some synonym groups specific to this example
+GB,gib,gigabyte,gigabytes
+MB,mib,megabyte,megabytes
+Television, Televisions, TV, TVs
+#notice we use "gib" instead of "GiB" so any WordDelimiterGraphFilter coming
+#after us won't split it into two words.
+
+# Synonym mappings can be used for spelling correction too
+pixima => pixma
+

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/887b8089/solr/contrib/clustering/src/test/resources/clustering/solr/collection1/core.properties
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diff --git a/solr/contrib/clustering/src/test/resources/clustering/solr/collection1/core.properties b/solr/contrib/clustering/src/test/resources/clustering/solr/collection1/core.properties
new file mode 100644
index 0000000..e69de29

http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/887b8089/solr/contrib/clustering/src/test/resources/clustering/solr/solr.xml
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diff --git a/solr/contrib/clustering/src/test/resources/clustering/solr/solr.xml b/solr/contrib/clustering/src/test/resources/clustering/solr/solr.xml
new file mode 100644
index 0000000..3596eeb
--- /dev/null
+++ b/solr/contrib/clustering/src/test/resources/clustering/solr/solr.xml
@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<!--
+ Licensed to the Apache Software Foundation (ASF) under one or more
+ contributor license agreements.  See the NOTICE file distributed with
+ this work for additional information regarding copyright ownership.
+ The ASF licenses this file to You under the Apache License, Version 2.0
+ (the "License"); you may not use this file except in compliance with
+ the License.  You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+
+<!--
+ solr.xml mimicking the old default solr.xml
+-->
+
+<solr>
+
+  <str name="coreRootDirectory">cores/</str>
+  <str name="configSetBaseDir"></str>
+
+    <shardHandlerFactory name="shardHandlerFactory" class="HttpShardHandlerFactory">
+     <str name="urlScheme">${urlScheme:}</str>
+     </shardHandlerFactory>
+
+</solr>