solr.conf.solrconfig.xml Maven / Gradle / Ivy
<?xml version="1.0" encoding="UTF-8" ?>
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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.
Specifically, the Solr Config can support XInclude, which may make it easier to manage
the configuration. See https://issues.apache.org/jira/browse/SOLR-1167
-->
<config>
<!--
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_40</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" />
<!-- 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" />
-->
<!-- 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>${solr.data.dir:}</dataDir>
<!-- The DirectoryFactory to use for indexes.
solr.StandardDirectoryFactory, the default, is filesystem based.
solr.RAMDirectoryFactory is memory based, not persistent, and doesn't work with replication. -->
<directoryFactory name="DirectoryFactory" class="${solr.directoryFactory:solr.StandardDirectoryFactory}"/>
<!-- WARNING: this <indexDefaults> section only provides defaults for index writers
in general. See also the <mainIndex> section after that when changing parameters
for Solr's main Lucene index. -->
<indexDefaults>
<!-- Values here affect all index writers and act as a default unless overridden. -->
<useCompoundFile>false</useCompoundFile>
<mergeFactor>10</mergeFactor>
<!-- If both ramBufferSizeMB and maxBufferedDocs is set, then Lucene will flush
based on whichever limit is hit first. -->
<!--<maxBufferedDocs>1000</maxBufferedDocs>-->
<!-- 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>
<!-- <maxMergeDocs>2147483647</maxMergeDocs> -->
<maxFieldLength>10000</maxFieldLength>
<writeLockTimeout>1000</writeLockTimeout>
<commitLockTimeout>10000</commitLockTimeout>
<!--
Expert: The Merge Policy in Lucene controls how merging is handled by
Lucene. The default in 2.3 is 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.LogByteSizeMergePolicy"/>-->
<!--
Expert:
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"/>-->
<!--
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 -->
<!--<termIndexInterval>256</termIndexInterval>-->
</indexDefaults>
<mainIndex>
<!-- options specific to the main on-disk lucene index -->
<useCompoundFile>false</useCompoundFile>
<ramBufferSizeMB>32</ramBufferSizeMB>
<mergeFactor>10</mergeFactor>
<!-- Deprecated -->
<!--<maxBufferedDocs>1000</maxBufferedDocs>-->
<!--<maxMergeDocs>2147483647</maxMergeDocs>-->
<!-- inherit from indexDefaults <maxFieldLength>10000</maxFieldLength> -->
<!-- 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>
<!--
Expert:
Controls how often Lucene loads terms into memory. Default is 128 and is likely good for most everyone. -->
<!--<termIndexInterval>256</termIndexInterval>-->
<!--
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="org.apache.solr.core.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>
<!-- To aid in advanced debugging, you may turn on IndexWriter debug logging.
Setting to true will set the file that the underlying Lucene IndexWriter
will write its debug infostream to. -->
<infoStream file="INFOSTREAM.txt">false</infoStream>
</mainIndex>
<!-- 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
-->
<!-- the default high-performance update handler -->
<updateHandler class="org.apache.solr.update.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
Instead of enabling autoCommit, consider using "commitWithin"
when adding documents. http://wiki.apache.org/solr/UpdateXmlMessages
<autoCommit>
<maxDocs>10000</maxDocs>
<maxTime>1000</maxTime>
</autoCommit>
-->
<!-- 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=nothing
env - environment variables to set. default=nothing
-->
<!-- A postCommit event is fired after every commit or optimize command
<listener event="postCommit" class="org.apache.solr.core.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>
-->
<!-- A postOptimize event is fired only after every optimize command
<listener event="postOptimize" class="org.apache.solr.core.RunExecutableListener">
<str name="exe">snapshooter</str>
<str name="dir">solr/bin</str>
<bool name="wait">true</bool>
</listener>
-->
</updateHandler>
<!-- Use the following format to specify a custom IndexReaderFactory - 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">
Parameters as required by the implementation
</indexReaderFactory >
-->
<!-- To set the setTermIndexDivisor, do this: -->
<!--<indexReaderFactory name="IndexReaderFactory" class="org.apache.solr.core.StandardIndexReaderFactory">
<int name="setTermIndexDivisor">12</int>
</indexReaderFactory >-->
<query>
<!-- Maximum number of clauses in a boolean query... in the past, this affected
range or prefix queries that expanded to big boolean queries - built in Solr
query parsers no longer create queries with this limitation.
An exception is thrown if exceeded. -->
<maxBooleanClauses>1024</maxBooleanClauses>
<!-- 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. -->
<!-- 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 FastLRUCache
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="org.apache.solr.search.FastLRUCache"
size="512"
initialSize="512"
autowarmCount="0"/>
<!-- 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="org.apache.solr.search.FastLRUCache"
size="512"
autowarmCount="128"
showItems="32"
/>
-->
<!-- 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="org.apache.solr.search.LRUCache"
size="512"
initialSize="512"
autowarmCount="0"/>
<!-- 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="org.apache.solr.search.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="org.apache.solr.search.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>20</queryResultWindowSize>
<!-- Maximum number of documents to cache for any entry in the
queryResultCache. -->
<queryResultMaxDocsCached>200</queryResultMaxDocsCached>
<!-- a newSearcher event is 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.
-->
<!-- QuerySenderListener takes an array of NamedList and executes a
local query request for each NamedList in sequence. -->
<!-- OC
<listener event="newSearcher" class="org.apache.solr.core.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. -->
<!-- OC
<listener event="firstSearcher" class="org.apache.solr.core.QuerySenderListener">
<arr name="queries">
<lst> <str name="q">solr rocks</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>
<!-- Maximum number of searchers that may be warming in the background
concurrently. An error is returned if this limit is exceeded. Recommend
1-2 for read-only slaves, higher for masters w/o cache warming. -->
<maxWarmingSearchers>2</maxWarmingSearchers>
</query>
<!--
Let the dispatch filter handler /select?qt=XXX
handleSelect=true will use consistent error handling for /select and /update
handleSelect=false will use solr1.1 style error formatting
-->
<requestDispatcher handleSelect="true" >
<!--Make sure your system has some authentication before enabling remote streaming! -->
<requestParsers enableRemoteStreaming="true" multipartUploadLimitInKB="2048000" />
<!-- 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>
<!-- Modified version of the regular SolrQueryParser that allows for full wildcard queries -->
<queryParser name="wildcardqueryparser" class="org.opencastproject.solr.WildcardQueryParserPlugin" />
<!-- requestHandler plugins... 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/select?qt=name
If no qt is defined, the requestHandler that declares default="true"
will be used.
-->
<requestHandler name="standard" class="org.apache.solr.handler.component.SearchHandler" default="true">
<!-- default values for query parameters -->
<lst name="defaults">
<str name="echoParams">explicit</str>
<str name="defType">wildcardqueryparser</str>
<!--
<int name="rows">10</int>
<str name="fl">*</str>
<str name="version">2.1</str>
-->
</lst>
</requestHandler>
<!-- Update request handler.
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'
The response format differs from solr1.1 formatting and returns a standard error code.
To enable solr1.1 behavior, remove the /update handler or change its path
-->
<requestHandler name="/update" class="org.apache.solr.handler.XmlUpdateRequestHandler" />
<!--
Search components are registered to SolrCore and used by Search Handlers
By default, the following components are avaliable:
<searchComponent name="query" class="org.apache.solr.handler.component.QueryComponent" />
<searchComponent name="facet" class="org.apache.solr.handler.component.FacetComponent" />
<searchComponent name="mlt" class="org.apache.solr.handler.component.MoreLikeThisComponent" />
<searchComponent name="highlight" class="org.apache.solr.handler.component.HighlightComponent" />
<searchComponent name="stats" class="org.apache.solr.handler.component.StatsComponent" />
<searchComponent name="debug" class="org.apache.solr.handler.component.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.
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>
-->
<!--
Admin Handlers - This will register all the standard admin RequestHandlers. Adding
this single handler is equivalent to registering:
<requestHandler name="/admin/luke" class="org.apache.solr.handler.admin.LukeRequestHandler" />
<requestHandler name="/admin/system" class="org.apache.solr.handler.admin.SystemInfoHandler" />
<requestHandler name="/admin/plugins" class="org.apache.solr.handler.admin.PluginInfoHandler" />
<requestHandler name="/admin/threads" class="org.apache.solr.handler.admin.ThreadDumpHandler" />
<requestHandler name="/admin/properties" class="org.apache.solr.handler.admin.PropertiesRequestHandler" />
<requestHandler name="/admin/file" class="org.apache.solr.handler.admin.ShowFileRequestHandler" >
If you wish to hide files under ${solr.home}/conf, explicitly register the ShowFileRequestHandler using:
<requestHandler name="/admin/file" class="org.apache.solr.handler.admin.ShowFileRequestHandler" >
<lst name="invariants">
<str name="hidden">synonyms.txt</str>
<str name="hidden">anotherfile.txt</str>
</lst>
</requestHandler>
-->
<requestHandler name="/admin/" class="org.apache.solr.handler.admin.AdminHandlers" />
<!-- ping/healthcheck -->
<requestHandler name="/admin/ping" class="PingRequestHandler">
<lst name="defaults">
<str name="qt">standard</str>
<str name="q">solrpingquery</str>
<str name="echoParams">all</str>
</lst>
</requestHandler>
<!-- Echo the request contents back to the client -->
<requestHandler name="/debug/dump" class="org.apache.solr.handler.DumpRequestHandler" >
<lst name="defaults">
<str name="echoParams">explicit</str> <!-- for all params (including the default etc) use: 'all' -->
<str name="echoHandler">true</str>
</lst>
</requestHandler>
<searchComponent class="org.apache.solr.handler.component.HighlightComponent" name="highlight">
<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>
<!-- Configure the standard encoder -->
<encoder name="html" class="org.apache.solr.highlight.HtmlEncoder" default="true"/>
<!-- Configure the standard fragListBuilder -->
<fragListBuilder name="simple" class="org.apache.solr.highlight.SimpleFragListBuilder" default="true"/>
<!-- Configure the single fragListBuilder -->
<fragListBuilder name="single" class="org.apache.solr.highlight.SingleFragListBuilder"/>
<!-- default tag FragmentsBuilder -->
<fragmentsBuilder name="default" class="org.apache.solr.highlight.ScoreOrderFragmentsBuilder" default="true">
<!--
<lst name="defaults">
<str name="hl.multiValuedSeparatorChar">/</str>
</lst>
-->
</fragmentsBuilder>
<!-- multi-colored tag FragmentsBuilder -->
<fragmentsBuilder name="colored" class="org.apache.solr.highlight.ScoreOrderFragmentsBuilder">
<lst name="defaults">
<str name="hl.tag.pre"><![CDATA[
<b style="background:yellow">,<b style="background:lawgreen">,
<b style="background:aquamarine">,<b style="background:magenta">,
<b style="background:palegreen">,<b style="background:coral">,
<b style="background:wheat">,<b style="background:khaki">,
<b style="background:lime">,<b style="background:deepskyblue">]]></str>
<str name="hl.tag.post"><![CDATA[</b>]]></str>
</lst>
</fragmentsBuilder>
</highlighting>
</searchComponent>
<!-- 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.
The following response writers are implicitly configured unless
overridden...
<queryResponseWriter name="xml" class="org.apache.solr.request.XMLResponseWriter" default="true"/>
<queryResponseWriter name="json" class="org.apache.solr.request.JSONResponseWriter"/>
<queryResponseWriter name="python" class="org.apache.solr.request.PythonResponseWriter"/>
<queryResponseWriter name="ruby" class="org.apache.solr.request.RubyResponseWriter"/>
<queryResponseWriter name="php" class="org.apache.solr.request.PHPResponseWriter"/>
<queryResponseWriter name="phps" class="org.apache.solr.request.PHPSerializedResponseWriter"/>
<queryResponseWriter name="velocity" class="org.apache.solr.request.VelocityResponseWriter"/>
<queryResponseWriter name="csv" class="org.apache.solr.request.CSVResponseWriter"/>
Custom response writers can be declared as needed...
<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="org.apache.solr.request.XSLTResponseWriter">
<int name="xsltCacheLifetimeSeconds">5</int>
</queryResponseWriter>
<!-- config for the admin interface -->
<admin>
<defaultQuery>solr</defaultQuery>
<!-- configure a healthcheck file for servers behind a loadbalancer
<healthcheck type="file">server-enabled</healthcheck>
-->
</admin>
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