| Element |
Purpose |
Example |
lib
|
Loads custom plugins (collection-level or cluster-level). |
<!-- Lib directive Config -->
<lib dir="./lib" />
<lib dir="${solr.install.dir:../../../..}/modules/extraction/lib" regex=".*\.jar" />
<lib dir="${solr.install.dir:../../../..}/modules/clustering/lib/" regex=".*\.jar" />
<lib dir="${solr.install.dir:../../../..}/modules/langid/lib/" regex=".*\.jar" />
<lib dir="${solr.install.dir:../../../..}/modules/ltr/lib/" regex=".*\.jar" />
<lib path="${solr.install.dir:../../../..}/modules/custom/lib/CustomPriceTaxProcessorFactory.jar"/>
|
dataDir and directoryFactory
|
Configures index storage location and I/O implementation. |
<!-- Data Directory Config -->
<dataDir>${solr.data.dir:}</dataDir>
|
codecFactory
|
Controls index compression for storage efficiency. |
<!-- Codec Factory -->
<codecFactory class="solr.SchemaCodecFactory">
<str name="compressionMode"BEST_COMPRESSION</str>
</codecFactory>
|
schemaFactory
|
Specifies schema management mode: managed (API-editable) or classic
(file-based). |
<!-- Schema Factory -->
<schemaFactory class="ManagedIndexSchemaFactory">
<bool name="mutable">true</bool>
<str name="managedSchemaResourceName">managed-schema</str>
</schemaFactory>
|
indexConfig
|
Configures segment buffer sizes, merge policies, and merge scheduler
threads. |
<!-- Index Config -->
<indexConfig>
<ramBufferSizeMB>100</ramBufferSizeMB>
<maxBufferedDocs>1000</maxBufferedDocs>
<useCompoundFile>false</useCompoundFile>
<mergePolicyFactory class="org.apache.solr.index.TieredMergePolicyFactory">
<int name="maxMergeAtOnce">10</int>
<int name="segmentsPerTier">10</int>
</mergePolicyFactory>
<mergeScheduler class="org.apache.lucene.index.ConcurrentMergeScheduler">
<int name="maxMergeCount">7</int>
<int name="maxThreadCount">3</int>
</mergeScheduler>
</indexConfig>
|
updateHandler
|
Configures hard commits (durability) and soft commits (near real-time
visibility). |
<!-- updateRequestProcessorChain -->
<updateRequestProcessorChain name="standard">
<processor class="solr.TrimFieldUpdateProcessorFactory"/>
<processor class="com.mycompany.CustomPriceTaxProcessorFactory"/>
</updateRequestProcessorChain>
|
query
|
Configures cache settings (filter, query result, document) and query
limits. |
<!-- Query Settings -->
<slowQueryThresholdMillis>-1</slowQueryThresholdMillis>
<maxBooleanClauses>1024</maxBooleanClauses>
<enableLazyFieldLoading>true</enableLazyFieldLoading>
<useColdSearcher>false</useColdSearcher>
<maxWarmingSearchers>2</maxWarmingSearchers>
</query>
|
requestHandler
|
Configures endpoint definitions with defaults, appends, and
invariants. |
<!-- Request Handlers -->
<requestHandler name="/select" class="solr.SearchHandler">
<lst name="defaults">
<str name="echoParams">explicit</str>
<int name="rows">10</int>
<str name="df">_text_</str>
</lst>
</requestHandler>
|
searchComponent
|
Configures modular components for spellcheck, suggestions, highlighting, and so
on. |
<!-- Search Components -->
<searchComponent name="spellcheck" class="solr.SpellCheckComponent"/>
<searchComponent name="suggest" class="solr.SuggestComponent"/>
<searchComponent name="elevator" class="solr.QueryElevationComponent"/>
<searchComponent class="solr.HighlightComponent" name="highlight"/>
|
updateRequestProcessorChain
|
Documents transformation pipeline before indexing. |
<!-- updateRequestProcessorChain -->
<updateRequestProcessorChain name="standard">
<processor class="solr.TrimFieldUpdateProcessorFactory"/>
<processor class="com.mycompany.CustomPriceTaxProcessorFactory"/>
</updateRequestProcessorChain>
|
