Metacat

# 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

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#     http://www.apache.org/licenses/LICENSE-2.0

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# 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.

#-----------------------------------------------------------------------

# Use a protected word file to protect against the stemmer reducing two

# unrelated words to the same base word.

# Some non-words that normally won't be encountered,

# just to test that they won't be stemmed.

dontstems

zwhacky

# 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.

# 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

such

that

the

their

then

there

these

they

this

to

was

will

with

<?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.

-->

<!-- If this file is found in the config directory, it will only be

     loaded once at startup.  If it is found in Solr's data

     directory, it will be re-loaded every commit.

-->

<elevate>

 <query text="foo bar">

  <doc id="1" />

  <doc id="2" />

  <doc id="3" />

 </query>

 <query text="ipod">

   <doc id="MA147LL/A" />  <!-- put the actual ipod at the top -->

   <doc id="IW-02" exclude="true" /> <!-- exclude this cable -->

 </query>

</elevate>

<?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.

-->

<!-- 

     For more details about configurations options that may appear in

     this file, see http://wiki.apache.org/solr/SolrConfigXml. 

-->

<config>

  <!-- In all configuration below, 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)

       You may also specify a fully qualified Java classname if you

       have your own custom plugins.

    -->

  <!-- Set this to 'false' if you want solr to continue working after

       it has encountered an severe configuration error.  In a

       production environment, you may want solr to keep working even

       if one handler is mis-configured.

       You may also set this to false using by setting the system

       property:

         -Dsolr.abortOnConfigurationError=false

    -->

  <abortOnConfigurationError>${solr.abortOnConfigurationError:true}</abortOnConfigurationError>

  <!-- Controls what version of Lucene various components of Solr

       adhere to.  Generally, you want to use the latest version to

       get all bug fixes and improvements. It is highly recommended

       that you fully re-index after changing this setting as it can

       affect both how text is indexed and queried.

    -->

  <luceneMatchVersion>LUCENE_34</luceneMatchVersion>

  <!-- lib directives can be used to instruct Solr to load an Jars

       identified and use them to resolve any "plugins" specified in

       your solrconfig.xml or schema.xml (ie: Analyzers, Request

       Handlers, etc...).

       All directories and paths are resolved relative to the

       instanceDir.

       If a "./lib" directory exists in your instanceDir, all files

       found in it are included as if you had used the following

       syntax...

              <lib dir="./lib" />

    -->

  <!-- A dir option by itself adds any files found in the directory to

       the classpath, this is useful for including all jars in a

       directory.

    -->

  <lib dir="../../contrib/extraction/lib" />

  <!-- When a regex is specified in addition to a directory, only the

       files in that directory which completely match the regex

       (anchored on both ends) will be included.

    -->

  <lib dir="../../dist/" regex="apache-solr-cell-\d.*\.jar" />

  <lib dir="../../dist/" regex="apache-solr-clustering-\d.*\.jar" />

  <lib dir="../../dist/" regex="apache-solr-dataimporthandler-\d.*\.jar" />

  <!-- If a dir option (with or without a regex) is used and nothing

       is found that matches, it will be ignored

    -->

  <lib dir="../../contrib/clustering/lib/" />

  <lib dir="/total/crap/dir/ignored" /> 

  <!-- an exact path can be used to specify a specific file.  This

       will cause a serious error to be logged if it can't be loaded.

    -->

  <!--

  <lib path="../a-jar-that-does-not-exist.jar" /> 

  -->

  <!-- Data Directory

       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>

  <!-- The DirectoryFactory to use for indexes.

       solr.StandardDirectoryFactory, the default, is filesystem

       based and tries to pick the best implementation for the current

       JVM and platform.  One can force a particular implementation

       via solr.MMapDirectoryFactory, solr.NIOFSDirectoryFactory, or

       solr.SimpleFSDirectoryFactory.

       solr.RAMDirectoryFactory is memory based, not

       persistent, and doesn't work with replication.

    -->

  <directoryFactory name="DirectoryFactory" 

                    class="${solr.directoryFactory:solr.StandardDirectoryFactory}"/>

  <!-- Index Defaults

       Values here affect all index writers and act as a default

       unless overridden.

       WARNING: See also the <mainIndex> section below for parameters

       that overfor Solr's main Lucene index.

    -->

  <indexDefaults>

    <useCompoundFile>false</useCompoundFile>

    <mergeFactor>10</mergeFactor>

    <!-- Sets the amount of RAM that may be used by Lucene indexing

         for buffering added documents and deletions before they are

         flushed to the Directory.  -->

    <ramBufferSizeMB>32</ramBufferSizeMB>

    <!-- If both ramBufferSizeMB and maxBufferedDocs is set, then

         Lucene will flush based on whichever limit is hit first.  

      -->

    <!-- <maxBufferedDocs>1000</maxBufferedDocs> -->

    <maxFieldLength>10000</maxFieldLength>

    <writeLockTimeout>1000</writeLockTimeout>

    <commitLockTimeout>10000</commitLockTimeout>

    <!-- Expert: Merge Policy 

         The Merge Policy in Lucene controls how merging is handled by

         Lucene.  The default in Solr 3.3 is TieredMergePolicy.

         The default in 2.3 was the LogByteSizeMergePolicy,

         previous versions used LogDocMergePolicy.

         LogByteSizeMergePolicy chooses segments to merge based on

         their size.  The Lucene 2.2 default, LogDocMergePolicy chose

         when to merge based on number of documents

         Other implementations of MergePolicy must have a no-argument

         constructor

      -->

    <!--

       <mergePolicy class="org.apache.lucene.index.TieredMergePolicy"/>

       -->

    <!-- Expert: Merge Scheduler

         The Merge Scheduler in Lucene controls how merges are

         performed.  The ConcurrentMergeScheduler (Lucene 2.3 default)

         can perform merges in the background using separate threads.

         The SerialMergeScheduler (Lucene 2.2 default) does not.

     -->

    <!-- 

       <mergeScheduler class="org.apache.lucene.index.ConcurrentMergeScheduler"/>

       -->

    <!-- LockFactory 

         This option specifies which Lucene LockFactory implementation

         to use.

         single = SingleInstanceLockFactory - suggested for a

                  read-only index or when there is no possibility of

                  another process trying to modify the index.

         native = NativeFSLockFactory - uses OS native file locking.

                  Do not use when multiple solr webapps in the same

                  JVM are attempting to share a single index.

         simple = SimpleFSLockFactory  - uses a plain file for locking

         (For backwards compatibility with Solr 1.2, 'simple' is the

         default if not specified.)

         More details on the nuances of each LockFactory...

         http://wiki.apache.org/lucene-java/AvailableLockFactories

    -->

    <lockType>native</lockType>

    <!-- Expert: Controls how often Lucene loads terms into memory

         Default is 128 and is likely good for most everyone.

      -->

    <!-- <termIndexInterval>256</termIndexInterval> -->

  </indexDefaults>

  <!-- Main Index

       Values here override the values in the <indexDefaults> section

       for the main on disk index.

    -->

  <mainIndex>

    <useCompoundFile>false</useCompoundFile>

    <ramBufferSizeMB>32</ramBufferSizeMB>

    <mergeFactor>10</mergeFactor>

    <!-- Unlock On Startup

         If true, unlock any held write or commit locks on startup.

         This defeats the locking mechanism that allows multiple

         processes to safely access a lucene index, and should be used

         with care.

         This is not needed if lock type is 'none' or 'single'

     -->

    <unlockOnStartup>false</unlockOnStartup>

    <!-- If true, IndexReaders will be reopened (often more efficient)

         instead of closed and then opened.

      -->

    <reopenReaders>true</reopenReaders>

    <!-- Commit Deletion Policy

         Custom deletion policies can specified here. The class must

         implement org.apache.lucene.index.IndexDeletionPolicy.

         http://lucene.apache.org/java/2_9_1/api/all/org/apache/lucene/index/IndexDeletionPolicy.html

         The standard Solr IndexDeletionPolicy implementation supports

         deleting index commit points on number of commits, age of

         commit point and optimized status.

         The latest commit point should always be preserved regardless

         of the criteria.

    -->

    <deletionPolicy class="solr.SolrDeletionPolicy">

      <!-- The number of commit points to be kept -->

      <str name="maxCommitsToKeep">1</str>

      <!-- The number of optimized commit points to be kept -->

      <str name="maxOptimizedCommitsToKeep">0</str>

      <!--

          Delete all commit points once they have reached the given age.

          Supports DateMathParser syntax e.g.

        -->

      <!--

         <str name="maxCommitAge">30MINUTES</str>

         <str name="maxCommitAge">1DAY</str>

      -->

    </deletionPolicy>

    <!-- Lucene Infostream

         To aid in advanced debugging, Lucene provides an "InfoStream"

         of detailed information when indexing.

         Setting The value to true will instruct the underlying Lucene

         IndexWriter to write its debugging info the specified file

      -->

     <infoStream file="INFOSTREAM.txt">false</infoStream> 

  </mainIndex>

  <!-- JMX

       This example 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.

       For more details see http://wiki.apache.org/solr/SolrJmx

    -->

  <jmx />

  <!-- If you want to connect to a particular server, specify the

       agentId 

    -->

  <!-- <jmx agentId="myAgent" /> -->

  <!-- If you want to start a new MBeanServer, specify the serviceUrl -->

  <!-- <jmx serviceUrl="service:jmx:rmi:///jndi/rmi://localhost:9999/solr"/>

    -->

  <!-- The default high-performance update handler -->

  <updateHandler class="solr.DirectUpdateHandler2">

    <!-- AutoCommit

         Perform a <commit/> automatically under certain conditions.

         Instead of enabling autoCommit, consider using "commitWithin"

         when adding documents. 

         http://wiki.apache.org/solr/UpdateXmlMessages

         maxDocs - Maximum number of documents to add since the last

                   commit before automatically triggering a new commit.

         maxTime - Maximum amount of time that is allowed to pass

                   since a document was added before automaticly

                   triggering a new commit. 

      -->

    <!--

       <autoCommit> 

         <maxDocs>10000</maxDocs>

         <maxTime>1000</maxTime> 

       </autoCommit>

      -->

    <!-- Update Related Event Listeners

         Various IndexWriter related events can trigger Listeners to

         take actions.

         postCommit - fired after every commit or optimize command

         postOptimize - fired after every optimize command

      -->

    <!-- The RunExecutableListener executes an external command from a

         hook such as postCommit or postOptimize.

         exe - the name of the executable to run

         dir - dir to use as the current working directory. (default=".")

         wait - the calling thread waits until the executable returns. 

                (default="true")

         args - the arguments to pass to the program.  (default is none)

         env - environment variables to set.  (default is none)

      -->

    <!-- This example shows how RunExecutableListener could be used

         with the script based replication...

         http://wiki.apache.org/solr/CollectionDistribution

      -->

    <!--

       <listener event="postCommit" class="solr.RunExecutableListener">

         <str name="exe">solr/bin/snapshooter</str>

         <str name="dir">.</str>

         <bool name="wait">true</bool>

         <arr name="args"> <str>arg1</str> <str>arg2</str> </arr>

         <arr name="env"> <str>MYVAR=val1</str> </arr>

       </listener>

      -->

  </updateHandler>

  <!-- IndexReaderFactory

       Use the following format to specify a custom IndexReaderFactory,

       which allows for alternate IndexReader implementations.

       ** Experimental Feature **

       Please note - Using a custom IndexReaderFactory may prevent

       certain other features from working. The API to

       IndexReaderFactory may change without warning or may even be

       removed from future releases if the problems cannot be

       resolved.

       ** Features that may not work with custom IndexReaderFactory **

       The ReplicationHandler assumes a disk-resident index. Using a

       custom IndexReader implementation may cause incompatibility

       with ReplicationHandler and may cause replication to not work

       correctly. See SOLR-1366 for details.

    -->

  <!--

  <indexReaderFactory name="IndexReaderFactory" class="package.class">

    <str name="someArg">Some Value</str>

  </indexReaderFactory >

  -->

  <!-- By explicitly declaring the Factory, the termIndexDivisor can

       be specified.

    -->

  <!--

     <indexReaderFactory name="IndexReaderFactory" 

                         class="solr.StandardIndexReaderFactory">

       <int name="setTermIndexDivisor">12</int>

     </indexReaderFactory >

    -->

  <query>

    <!-- Max Boolean Clauses

         Maximum number of clauses in each BooleanQuery,  an exception

         is thrown if exceeded.

         ** WARNING **

         This option actually modifies a global Lucene property that

         will affect all SolrCores.  If multiple solrconfig.xml files

         disagree on this property, the value at any given moment will

         be based on the last SolrCore to be initialized.

      -->

    <maxBooleanClauses>1024</maxBooleanClauses>

    <!-- Solr Internal Query Caches

         There are two implementations of cache available for Solr,

         LRUCache, based on a synchronized LinkedHashMap, and

         FastLRUCache, based on a ConcurrentHashMap.  

         FastLRUCache has faster gets and slower puts in single

         threaded operation and thus is generally faster than LRUCache

         when the hit ratio of the cache is high (> 75%), and may be

         faster under other scenarios on multi-cpu systems.

    -->

    <!-- Filter Cache

         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 LRUCache or

               (LRUCache or FastLRUCache)

           size - the maximum number of entries in the cache

           initialSize - the initial capacity (number of entries) of

               the cache.  (see java.util.HashMap)

           autowarmCount - the number of entries to prepopulate from

               and old cache.  

      -->

    <filterCache class="solr.FastLRUCache"

                 size="512"

                 initialSize="512"

                 autowarmCount="0"/>

    <!-- Query Result Cache

         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="0"/>

    <!-- Document Cache

         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"/>

    <!-- Field Value Cache

         Cache used to hold field values that are quickly accessible

         by document id.  The fieldValueCache is created by default

         even if not configured here.

      -->

    <!--

       <fieldValueCache class="solr.FastLRUCache"

                        size="512"

                        autowarmCount="128"

                        showItems="32" />

      -->

    <!-- Custom Cache

         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.CacheRegenerator 

         if autowarming is desired.  

      -->

    <!--

       <cache name="myUserCache"

              class="solr.LRUCache"

              size="4096"

              initialSize="1024"

              autowarmCount="1024"

              regenerator="com.mycompany.MyRegenerator"

              />

      -->

    <!-- Lazy Field Loading

         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>

   <!-- Use Filter For Sorted Query

        A possible 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.

        For most situations, this will not be useful unless you

        frequently get the same search repeatedly with different sort

        options, and none of them ever use "score"

     -->

   <!--

      <useFilterForSortedQuery>true</useFilterForSortedQuery>

     -->

   <!-- Result Window Size

        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>20</queryResultWindowSize>

   <!-- Maximum number of documents to cache for any entry in the

        queryResultCache. 

     -->

   <queryResultMaxDocsCached>200</queryResultMaxDocsCached>

   <!-- Query Related Event Listeners

        Various IndexSearcher related events can trigger Listeners to

        take actions.

        newSearcher - fired whenever a new searcher is being prepared

        and there is a current searcher handling requests (aka

        registered).  It can be used to prime certain caches to

        prevent long request times for certain requests.

        firstSearcher - fired whenever a new searcher is being

        prepared but there is no current registered searcher to handle

        requests or to gain autowarming data from.

     -->

    <!-- 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="sort">price asc</str></lst>

           <lst><str name="q">rocks</str><str name="sort">weight asc</str></lst>

          -->

      </arr>

    </listener>

    <listener event="firstSearcher" class="solr.QuerySenderListener">

      <arr name="queries">

        <lst>

          <str name="q">static firstSearcher warming in solrconfig.xml</str>

        </lst>

      </arr>

    </listener>

    <!-- Use Cold Searcher

         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>

    <!-- Max Warming Searchers

         Maximum number of searchers that may be warming in the

         background concurrently.  An error is returned if this limit

         is exceeded.

         Recommend values of 1-2 for read-only slaves, higher for

         masters w/o cache warming.

      -->

    <maxWarmingSearchers>2</maxWarmingSearchers>

  </query>

  <!-- Request Dispatcher

       This section contains instructions for how the SolrDispatchFilter

       should behave when processing requests for this SolrCore.

       handleSelect affects the behavior of requests such as /select?qt=XXX

       handleSelect="true" will cause the SolrDispatchFilter to process

       the request and will result in consistent error handling and

       formatting for all types of requests.

       handleSelect="false" will cause the SolrDispatchFilter to

       ignore "/select" requests and fallback to using the legacy

       SolrServlet and it's Solr 1.1 style error formatting

    -->

  <requestDispatcher handleSelect="true" >

    <!-- Request Parsing

         These settings indicate how Solr Requests may be parsed, and

         what restrictions may be placed on the ContentStreams from

         those requests

         enableRemoteStreaming - enables use of the stream.file

         and stream.url parameters for specifying remote streams.

         multipartUploadLimitInKB - specifies the max size of

         Multipart File Uploads that Solr will allow in a Request.

         *** WARNING ***

         The settings below authorize Solr to fetch remote files, You

         should make sure your system has some authentication before

         using enableRemoteStreaming="true"

      --> 

    <requestParsers enableRemoteStreaming="true" 

                    multipartUploadLimitInKB="2048000" />

    <!-- HTTP Caching

         Set HTTP caching related parameters (for proxy caches and clients).

         The options below instruct Solr not to output any HTTP Caching

         related headers

      -->

    <httpCaching never304="true" />

    <!-- 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"

      -->

    <!--

       <httpCaching never304="true" >

         <cacheControl>max-age=30, public</cacheControl> 

       </httpCaching>

      -->

    <!-- To enable Solr to respond with automatically generated HTTP

         Caching headers, and to response to Cache Validation requests

         correctly, set the value of never304="false"

         This will cause Solr to generate Last-Modified and ETag

         headers based on the properties of the Index.

         The following options can also be specified to affect the

         values of these headers...

         lastModFrom - the default value is "openTime" which means 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 correspond 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

         different 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)

      -->

    <!--

       <httpCaching lastModifiedFrom="openTime"

                    etagSeed="Solr">

         <cacheControl>max-age=30, public</cacheControl> 

       </httpCaching>

      -->

  </requestDispatcher>

  <!-- Request Handlers 

       http://wiki.apache.org/solr/SolrRequestHandler

       incoming queries will be dispatched to the correct handler

       based on the path or the qt (query type) param.

       Names starting with a '/' are accessed with the a path equal to

       the registered name.  Names without a leading '/' are accessed

       with: http://host/app/[core/]select?qt=name

       If a /select request is processed with out a qt param

       specified, the requestHandler that declares default="true" will

       be used.

       If a Request Handler is declared with startup="lazy", then it will

       not be initialized until the first request that uses it.

    -->

  <!-- SearchHandler

       http://wiki.apache.org/solr/SearchHandler

       For processing Search Queries, the primary Request Handler

       provided with Solr is "SearchHandler" It delegates to a sequent

       of SearchComponents (see below) and supports distributed

       queries across multiple shards

    -->

  <requestHandler name="search" class="solr.SearchHandler" default="true">

    <!-- default values for query parameters can be specified, these

         will be overridden by parameters in the request

      -->

     <lst name="defaults">

       <str name="echoParams">explicit</str>

       <int name="rows">10</int>

     </lst>

    <!-- In addition to defaults, "appends" params can be specified

         to identify values which should be appended to the list of

         multi-val params from the query (or the existing "defaults").

      -->

    <!-- In this example, the param "fq=instock:true" would be appended to

         any query time fq params the user may specify, as a mechanism for

         partitioning the index, independent of any user selected filtering

         that may also be desired (perhaps as a result of faceted searching).

         NOTE: there is *absolutely* nothing a client can do to prevent these

         "appends" values from being used, so don't use this mechanism

         unless you are sure you always want it.

      -->

    <!--

       <lst name="appends">

         <str name="fq">inStock:true</str>

       </lst>

      -->

    <!-- "invariants" are a way of letting the Solr maintainer lock down

         the options available to Solr clients.  Any params values

         specified here are used regardless of what values may be specified

         in either the query, the "defaults", or the "appends" params.

         In this example, the facet.field and facet.query params would

         be fixed, limiting the facets clients can use.  Faceting is

         not turned on by default - but if the client does specify

         facet=true in the request, these are the only facets they

         will be able to see counts for; regardless of what other

         facet.field or facet.query params they may specify.

         NOTE: there is *absolutely* nothing a client can do to prevent these

         "invariants" values from being used, so don't use this mechanism

         unless you are sure you always want it.

      -->

    <!--

       <lst name="invariants">

         <str name="facet.field">cat</str>

         <str name="facet.field">manu_exact</str>

         <str name="facet.query">price:[* TO 500]</str>

         <str name="facet.query">price:[500 TO *]</str>

       </lst>

      -->

    <!-- If the default list of SearchComponents is not desired, that

         list can either be overridden completely, or components can be

         prepended or appended to the default list.  (see below)

      -->

    <!--

       <arr name="components">

         <str>nameOfCustomComponent1</str>

         <str>nameOfCustomComponent2</str>

       </arr>

      -->

    </requestHandler>

  <!-- A Robust Example

       This example SearchHandler declaration shows off usage of the

       SearchHandler with many defaults declared

       Note that multiple instances of the same Request Handler

       (SearchHandler) can be registered multiple times with different

       names (and different init parameters)

    -->

  <requestHandler name="/browse" class="solr.SearchHandler">

     <lst name="defaults">

       <str name="echoParams">explicit</str>

       <!-- VelocityResponseWriter settings -->

       <str name="wt">velocity</str>

       <str name="v.template">browse</str>

       <str name="v.layout">layout</str>

       <str name="title">Solritas</str>

       <str name="defType">edismax</str>

       <str name="q.alt">*:*</str>

       <str name="rows">10</str>

       <str name="fl">*,score</str>

       <str name="mlt.qf">

         text^0.5 features^1.0 name^1.2 sku^1.5 id^10.0 manu^1.1 cat^1.4

       </str>

       <str name="mlt.fl">text,features,name,sku,id,manu,cat</str>

       <int name="mlt.count">3</int>

       <str name="qf">

          text^0.5 features^1.0 name^1.2 sku^1.5 id^10.0 manu^1.1 cat^1.4

       </str>

       <str name="facet">on</str>

       <str name="facet.field">cat</str>

       <str name="facet.field">manu_exact</str>

       <str name="facet.query">ipod</str>

       <str name="facet.query">GB</str>

       <str name="facet.mincount">1</str>

       <str name="facet.pivot">cat,inStock</str>

       <str name="facet.range.other">after</str>

       <str name="facet.range">price</str>

       <int name="f.price.facet.range.start">0</int>

       <int name="f.price.facet.range.end">600</int>

       <int name="f.price.facet.range.gap">50</int>

       <str name="facet.range">popularity</str>

       <int name="f.popularity.facet.range.start">0</int>

       <int name="f.popularity.facet.range.end">10</int>

       <int name="f.popularity.facet.range.gap">3</int>

       <str name="facet.range">manufacturedate_dt</str>

       <str name="f.manufacturedate_dt.facet.range.start">NOW/YEAR-10YEARS</str>

       <str name="f.manufacturedate_dt.facet.range.end">NOW</str>

       <str name="f.manufacturedate_dt.facet.range.gap">+1YEAR</str>

       <str name="f.manufacturedate_dt.facet.range.other">before</str>

       <str name="f.manufacturedate_dt.facet.range.other">after</str>

       <!-- Highlighting defaults -->

       <str name="hl">on</str>

       <str name="hl.fl">text features name</str>

       <str name="f.name.hl.fragsize">0</str>

       <str name="f.name.hl.alternateField">name</str>

     </lst>

     <arr name="last-components">

       <str>spellcheck</str>

     </arr>

     <!--

     <str name="url-scheme">httpx</str>

     -->

  </requestHandler>

  <!-- XML Update Request Handler.  

       http://wiki.apache.org/solr/UpdateXmlMessages

       The canonical Request Handler for Modifying the Index through

       commands specified using XML.

       Note: Since solr1.1 requestHandlers requires a valid content

       type header if posted in the body. For example, curl now

       requires: -H 'Content-type:text/xml; charset=utf-8'

    -->

  <requestHandler name="/update" 

                  class="solr.XmlUpdateRequestHandler">

    <!-- See below for information on defining 

         updateRequestProcessorChains that can be used by name 

         on each Update Request

      -->

    <!--

       <lst name="defaults">

         <str name="update.chain">dedupe</str>

       </lst>

       -->

    </requestHandler>

  <!-- Binary Update Request Handler

       http://wiki.apache.org/solr/javabin

    -->

  <requestHandler name="/update/javabin" 

                  class="solr.BinaryUpdateRequestHandler" />

  <!-- CSV Update Request Handler

       http://wiki.apache.org/solr/UpdateCSV

    -->

  <requestHandler name="/update/csv" 

                  class="solr.CSVRequestHandler" 

                  startup="lazy" />

  <!-- JSON Update Request Handler

       http://wiki.apache.org/solr/UpdateJSON

    -->

  <requestHandler name="/update/json" 

                  class="solr.JsonUpdateRequestHandler" 

                  startup="lazy" />

  <!-- Solr Cell Update Request Handler

       http://wiki.apache.org/solr/ExtractingRequestHandler 

    -->

  <requestHandler name="/update/extract" 

                  startup="lazy"

                  class="solr.extraction.ExtractingRequestHandler" >

    <lst name="defaults">

      <!-- All the main content goes into "text"... if you need to return

           the extracted text or do highlighting, use a stored field. -->

      <str name="fmap.content">text</str>

      <str name="lowernames">true</str>

      <str name="uprefix">ignored_</str>

      <!-- capture link hrefs but ignore div attributes -->

      <str name="captureAttr">true</str>

      <str name="fmap.a">links</str>

      <str name="fmap.div">ignored_</str>

    </lst>

  </requestHandler>

  <!-- XSLT Update Request Handler

       Transforms incoming XML with stylesheet identified by tr=

  -->

  <requestHandler name="/update/xslt"

                   startup="lazy"

                   class="solr.XsltUpdateRequestHandler"/>

  <!-- Field Analysis Request Handler

       RequestHandler that provides much the same functionality as

       analysis.jsp. Provides the ability to specify multiple field

       types and field names in the same request and outputs

       index-time and query-time analysis for each of them.

       Request parameters are:

       analysis.fieldname - field name whose analyzers are to be used

       analysis.fieldtype - field type whose analyzers are to be used

       analysis.fieldvalue - text for index-time analysis

       q (or analysis.q) - text for query time analysis

       analysis.showmatch (true|false) - When set to true and when

           query analysis is performed, the produced tokens of the

           field value analysis will be marked as "matched" for every

           token that is produces by the query analysis

   -->

  <requestHandler name="/analysis/field" 

                  startup="lazy"

                  class="solr.FieldAnalysisRequestHandler" />

  <!-- Document Analysis Handler

       http://wiki.apache.org/solr/AnalysisRequestHandler

       An analysis handler that provides a breakdown of the analysis

       process of provided docuemnts. This handler expects a (single)

       content stream with the following format:

       <docs>

         <doc>

           <field name="id">1</field>

           <field name="name">The Name</field>

           <field name="text">The Text Value</field>

         </doc>

         <doc>...</doc>

         <doc>...</doc>

         ...

       </docs>

    Note: Each document must contain a field which serves as the

    unique key. This key is used in the returned response to associate

    an analysis breakdown to the analyzed document.

    Like the FieldAnalysisRequestHandler, this handler also supports

    query analysis by sending either an "analysis.query" or "q"

    request parameter that holds the query text to be analyzed. It

    also supports the "analysis.showmatch" parameter which when set to

    true, all field tokens that match the query tokens will be marked

    as a "match". 

  -->

  <requestHandler name="/analysis/document" 

                  class="solr.DocumentAnalysisRequestHandler" 

                  startup="lazy" />

  <!-- Admin Handlers

       Admin Handlers - This will register all the standard admin

       RequestHandlers.  

    -->

  <requestHandler name="/admin/" 

                  class="solr.admin.AdminHandlers" />

  <!-- This single handler is equivalent to the following... -->

  <!--

     <requestHandler name="/admin/luke"       class="solr.admin.LukeRequestHandler" />

     <requestHandler name="/admin/system"     class="solr.admin.SystemInfoHandler" />

     <requestHandler name="/admin/plugins"    class="solr.admin.PluginInfoHandler" />

     <requestHandler name="/admin/threads"    class="solr.admin.ThreadDumpHandler" />

     <requestHandler name="/admin/properties" class="solr.admin.PropertiesRequestHandler" />

     <requestHandler name="/admin/file"       class="solr.admin.ShowFileRequestHandler" >

    -->

  <!-- If you wish to hide files under ${solr.home}/conf, explicitly

       register the ShowFileRequestHandler using: 

    -->

  <!--

     <requestHandler name="/admin/file" 

                     class="solr.admin.ShowFileRequestHandler" >

       <lst name="invariants">

         <str name="hidden">synonyms.txt</str> 

         <str name="hidden">anotherfile.txt</str> 

       </lst>

     </requestHandler>

    -->

  <!-- ping/healthcheck -->

  <requestHandler name="/admin/ping" class="solr.PingRequestHandler">

    <lst name="invariants">

      <str name="qt">search</str>

      <str name="q">solrpingquery</str>

    </lst>

    <lst name="defaults">

      <str name="echoParams">all</str>

    </lst>

  </requestHandler>

  <!-- Echo the request contents back to the client -->

  <requestHandler name="/debug/dump" class="solr.DumpRequestHandler" >

    <lst name="defaults">

     <str name="echoParams">explicit</str> 

     <str name="echoHandler">true</str>

    </lst>

  </requestHandler>

  <!-- Solr Replication

       The SolrReplicationHandler supports replicating indexes from a

       "master" used for indexing and "salves" used for queries.

       http://wiki.apache.org/solr/SolrReplication 

       In the example below, remove the <lst name="master"> section if

       this is just a slave and remove  the <lst name="slave"> section

       if this is just a master.

    -->

  <!--

     <requestHandler name="/replication" class="solr.ReplicationHandler" >

       <lst name="master">

         <str name="replicateAfter">commit</str>

         <str name="replicateAfter">startup</str>

         <str name="confFiles">schema.xml,stopwords.txt</str>

       </lst>

       <lst name="slave">

         <str name="masterUrl">http://localhost:8983/solr/replication</str>

         <str name="pollInterval">00:00:60</str>

       </lst>

     </requestHandler>

    -->

  <!-- Search Components

       Search components are registered to SolrCore and used by 

       instances of SearchHandler (which can access them by name)

       By default, the following components are available:

       <searchComponent name="query"     class="solr.QueryComponent" />

       <searchComponent name="facet"     class="solr.FacetComponent" />

       <searchComponent name="mlt"       class="solr.MoreLikeThisComponent" />

       <searchComponent name="highlight" class="solr.HighlightComponent" />

       <searchComponent name="stats"     class="solr.StatsComponent" />

       <searchComponent name="debug"     class="solr.DebugComponent" />

       Default configuration in a requestHandler would look like:

       <arr name="components">

         <str>query</str>

         <str>facet</str>

         <str>mlt</str>

         <str>highlight</str>

         <str>stats</str>

         <str>debug</str>

       </arr>

       If you register a searchComponent to one of the standard names, 

       that will be used instead of the default.

       To insert components before or after the 'standard' components, use:

       <arr name="first-components">

         <str>myFirstComponentName</str>

       </arr>

       <arr name="last-components">

         <str>myLastComponentName</str>

       </arr>

       NOTE: The component registered with the name "debug" will

       always be executed after the "last-components" 

     -->

   <!-- Spell Check

        The spell check component can return a list of alternative spelling

        suggestions.  

        http://wiki.apache.org/solr/SpellCheckComponent

     -->

  <searchComponent name="spellcheck" class="solr.SpellCheckComponent">

    <str name="queryAnalyzerFieldType">textSpell</str>

    <!-- Multiple "Spell Checkers" can be declared and used by this

         component

      -->

    <!-- a spellchecker built from a field of the main index, and

         written to disk

      -->

    <lst name="spellchecker">

      <str name="name">default</str>

      <str name="field">name</str>

      <str name="spellcheckIndexDir">spellchecker</str>

      <!-- uncomment this to require terms to occur in 1% of the documents in order to be included in the dictionary

      	<float name="thresholdTokenFrequency">.01</float>

      -->

    </lst>

    <!-- a spellchecker that uses a different distance measure -->

    <!--

       <lst name="spellchecker">

         <str name="name">jarowinkler</str>

         <str name="field">spell</str>

         <str name="distanceMeasure">

           org.apache.lucene.search.spell.JaroWinklerDistance

         </str>

         <str name="spellcheckIndexDir">spellcheckerJaro</str>

       </lst>

     -->

    <!-- a spellchecker that use an alternate comparator 

         comparatorClass be one of:

          1. score (default)

          2. freq (Frequency first, then score)

          3. A fully qualified class name

      -->

    <!--

       <lst name="spellchecker">

         <str name="name">freq</str>

         <str name="field">lowerfilt</str>

         <str name="spellcheckIndexDir">spellcheckerFreq</str>

         <str name="comparatorClass">freq</str>

         <str name="buildOnCommit">true</str>

      -->

    <!-- A spellchecker that reads the list of words from a file -->

    <!--

       <lst name="spellchecker">

         <str name="classname">solr.FileBasedSpellChecker</str>

         <str name="name">file</str>

         <str name="sourceLocation">spellings.txt</str>

         <str name="characterEncoding">UTF-8</str>

         <str name="spellcheckIndexDir">spellcheckerFile</str>

       </lst>

      -->

  </searchComponent>

  <!-- A request handler for demonstrating the spellcheck component.  

       NOTE: This is purely as an example.  The whole purpose of the

       SpellCheckComponent is to hook it into the request handler that

       handles your normal user queries so that a separate request is

       not needed to get suggestions.

       IN OTHER WORDS, THERE IS REALLY GOOD CHANCE THE SETUP BELOW IS

       NOT WHAT YOU WANT FOR YOUR PRODUCTION SYSTEM!

       See http://wiki.apache.org/solr/SpellCheckComponent for details

       on the request parameters.

    -->

  <requestHandler name="/spell" class="solr.SearchHandler" startup="lazy">

    <lst name="defaults">

      <str name="spellcheck.onlyMorePopular">false</str>

      <str name="spellcheck.extendedResults">false</str>

      <str name="spellcheck.count">1</str>

    </lst>

    <arr name="last-components">

      <str>spellcheck</str>

    </arr>

  </requestHandler>

  <!-- Term Vector Component

       http://wiki.apache.org/solr/TermVectorComponent

    -->

  <searchComponent name="tvComponent" class="solr.TermVectorComponent"/>

  <!-- A request handler for demonstrating the term vector component

       This is purely as an example.

       In reality you will likely want to add the component to your 

       already specified request handlers. 

    -->

  <requestHandler name="tvrh" class="solr.SearchHandler" startup="lazy">

    <lst name="defaults">

      <bool name="tv">true</bool>

    </lst>

    <arr name="last-components">

      <str>tvComponent</str>

    </arr>

  </requestHandler>

  <!-- Clustering Component

       http://wiki.apache.org/solr/ClusteringComponent

       This relies on third party jars which are notincluded in the

       release.  To use this component (and the "/clustering" handler)

       Those jars will need to be downloaded, and you'll need to set

       the solr.cluster.enabled system property when running solr...

          java -Dsolr.clustering.enabled=true -jar start.jar

    -->

  <searchComponent name="clustering" 

                   enable="${solr.clustering.enabled:false}"

                   class="solr.clustering.ClusteringComponent" >

    <!-- Declare an engine -->

    <lst name="engine">

      <!-- The name, only one can be named "default" -->

      <str name="name">default</str>

      <!-- Class name of Carrot2 clustering algorithm. 

           Currently available algorithms are:

           * org.carrot2.clustering.lingo.LingoClusteringAlgorithm

           * org.carrot2.clustering.stc.STCClusteringAlgorithm

           * org.carrot2.clustering.kmeans.BisectingKMeansClusteringAlgorithm

           See http://project.carrot2.org/algorithms.html for the

           algorithm's characteristics.

        -->

      <str name="carrot.algorithm">org.carrot2.clustering.lingo.LingoClusteringAlgorithm</str>

      <!-- Overriding values for Carrot2 default algorithm attributes.

           For a description of all available attributes, see:

           http://download.carrot2.org/stable/manual/#chapter.components.

           Use attribute key as name attribute of str elements

           below. These can be further overridden for individual

           requests by specifying attribute key as request parameter

           name and attribute value as parameter value.

        -->

      <str name="LingoClusteringAlgorithm.desiredClusterCountBase">20</str>

      <!-- Location of Carrot2 lexical resources.

           A directory from which to load Carrot2-specific stop words

           and stop labels. Absolute or relative to Solr config directory.

           If a specific resource (e.g. stopwords.en) is present in the

           specified dir, it will completely override the corresponding

           default one that ships with Carrot2.

           For an overview of Carrot2 lexical resources, see:

           http://download.carrot2.org/head/manual/#chapter.lexical-resources

        -->

      <str name="carrot.lexicalResourcesDir">clustering/carrot2</str>

      <!-- The language to assume for the documents.

           For a list of allowed values, see:

           http://download.carrot2.org/stable/manual/#section.attribute.lingo.MultilingualClustering.defaultLanguage

       -->

      <str name="MultilingualClustering.defaultLanguage">ENGLISH</str>

    </lst>

    <lst name="engine">

      <str name="name">stc</str>

      <str name="carrot.algorithm">org.carrot2.clustering.stc.STCClusteringAlgorithm</str>

    </lst>

  </searchComponent>

  <!-- A request handler for demonstrating the clustering component

       This is purely as an example.

       In reality you will likely want to add the component to your 

       already specified request handlers. 

    -->

  <requestHandler name="/clustering"

                  startup="lazy"

                  enable="${solr.clustering.enabled:false}"

                  class="solr.SearchHandler">

    <lst name="defaults">

      <bool name="clustering">true</bool>

      <str name="clustering.engine">default</str>

      <bool name="clustering.results">true</bool>

      <!-- The title field -->

      <str name="carrot.title">name</str>

      <str name="carrot.url">id</str>

      <!-- The field to cluster on -->

       <str name="carrot.snippet">features</str>

       <!-- produce summaries -->

       <bool name="carrot.produceSummary">true</bool>

       <!-- the maximum number of labels per cluster -->

       <!--<int name="carrot.numDescriptions">5</int>-->

       <!-- produce sub clusters -->

       <bool name="carrot.outputSubClusters">false</bool>

       <str name="defType">edismax</str>

       <str name="qf">

          text^0.5 features^1.0 name^1.2 sku^1.5 id^10.0 manu^1.1 cat^1.4

       </str>

       <str name="q.alt">*:*</str>

       <str name="rows">10</str>

       <str name="fl">*,score</str>

    </lst>     

    <arr name="last-components">

      <str>clustering</str>

    </arr>

  </requestHandler>

  <!-- Terms Component

       http://wiki.apache.org/solr/TermsComponent

       A component to return terms and document frequency of those

       terms

    -->

  <searchComponent name="terms" class="solr.TermsComponent"/>

  <!-- A request handler for demonstrating the terms component -->

  <requestHandler name="/terms" class="solr.SearchHandler" startup="lazy">

     <lst name="defaults">

      <bool name="terms">true</bool>

    </lst>     

    <arr name="components">

      <str>terms</str>

    </arr>

  </requestHandler>

  <!-- Query Elevation Component

       http://wiki.apache.org/solr/QueryElevationComponent

       a search component that enables you to configure the top

       results for a given query regardless of the normal lucene

       scoring.

    -->

  <searchComponent name="elevator" class="solr.QueryElevationComponent" >

    <!-- pick a fieldType to analyze queries -->

    <str name="queryFieldType">string</str>

    <str name="config-file">elevate.xml</str>

  </searchComponent>

  <!-- A request handler for demonstrating the elevator component -->

  <requestHandler name="/elevate" class="solr.SearchHandler" startup="lazy">

    <lst name="defaults">

      <str name="echoParams">explicit</str>

    </lst>

    <arr name="last-components">

      <str>elevator</str>

    </arr>