如何在 solr 搜索组件中添加多个建议者定义

Question

我正在使用 solr 5.1。我正在尝试根据Apache solr wiki在Solr搜索组件中配置多个建议器定义。

我已经完美地配置了单个建议器并且它运行完美但是每当我尝试配置多个建议器时它都会给我以下错误

java.lang.NullPointerException
    at org.apache.solr.handler.component.SearchHandler.handleRequestBody(SearchHandler.java:190)
    at org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:143)
    at org.apache.solr.core.SolrCore.execute(SolrCore.java:1984)
    at org.apache.solr.core.QuerySenderListener.newSearcher(QuerySenderListener.java:64)
    at org.apache.solr.core.SolrCore$5.call(SolrCore.java:1751)
    at java.util.concurrent.FutureTask.run(FutureTask.java:262)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)


org.apache.lucene.store.AlreadyClosedException: this Directory is closed
    at org.apache.lucene.store.BaseDirectory.ensureOpen(BaseDirectory.java:50)
    at org.apache.lucene.store.FSDirectory.getDirectory(FSDirectory.java:244)
    at org.apache.lucene.store.NativeFSLockFactory.makeFSLock(NativeFSLockFactory.java:85)
    at org.apache.lucene.store.FSLockFactory.makeLock(FSLockFactory.java:39)
    at org.apache.lucene.store.BaseDirectory.makeLock(BaseDirectory.java:44)
    at org.apache.lucene.index.IndexWriter.<init>(IndexWriter.java:774)
    at org.apache.lucene.search.suggest.analyzing.AnalyzingInfixSuggester.build(AnalyzingInfixSuggester.java:296)
    at org.apache.lucene.search.suggest.Lookup.build(Lookup.java:193)
    at org.apache.solr.spelling.suggest.SolrSuggester.build(SolrSuggester.java:163)
    at org.apache.solr.handler.component.SuggestComponent$SuggesterListener.buildSuggesterIndex(SuggestComponent.java:524)
    at org.apache.solr.handler.component.SuggestComponent$SuggesterListener.newSearcher(SuggestComponent.java:506)
    at org.apache.solr.core.SolrCore$5.call(SolrCore.java:1751)
    at java.util.concurrent.FutureTask.run(FutureTask.java:262)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

org.apache.solr.common.SolrException
    at org.apache.solr.core.SolrCore.<init>(SolrCore.java:885)
    at org.apache.solr.core.SolrCore.<init>(SolrCore.java:652)
    at org.apache.solr.core.CoreContainer.create(CoreContainer.java:518)
    at org.apache.solr.core.CoreContainer$1.call(CoreContainer.java:283)
    at org.apache.solr.core.CoreContainer$1.call(CoreContainer.java:277)
    at java.util.concurrent.FutureTask.run(FutureTask.java:262)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.RuntimeException
    at org.apache.solr.spelling.suggest.fst.AnalyzingInfixLookupFactory.create(AnalyzingInfixLookupFactory.java:138)
    at org.apache.solr.spelling.suggest.SolrSuggester.init(SolrSuggester.java:107)
    at org.apache.solr.handler.component.SuggestComponent.inform(SuggestComponent.java:119)
    at org.apache.solr.core.SolrResourceLoader.inform(SolrResourceLoader.java:620)
    at org.apache.solr.core.SolrCore.<init>(SolrCore.java:868)
    ... 8 more

下面是我的 solrconfig.xml

<searchComponent class="solr.SuggestComponent" name="suggest">
  <lst name="suggester">
    <str name="name">suggest</str>
    <str name="lookupImpl">org.apache.solr.spelling.suggest.fst.AnalyzingInfixLookupFactory</str>
    <str name="dictionaryImpl">org.apache.solr.spelling.suggest.DocumentDictionaryFactory</str>
    <str name="suggestAnalyzerFieldType">suggestAnalyzer</str>
    <str name="queryAnalyzerFieldType">tokenAnalyzer</str>
    <str name="field">suggest_Name</str>  <!-- the indexed field to derive suggestions from -->
    <str name="buildOnCommit">true</str>
  </lst>
  <lst name="suggester">
    <str name="name">suggest2</str>
    <str name="lookupImpl">org.apache.solr.spelling.suggest.fst.AnalyzingInfixLookupFactory</str>
    <str name="dictionaryImpl">org.apache.solr.spelling.suggest.DocumentDictionaryFactory</str>
    <str name="suggestAnalyzerFieldType">suggestAnalyzer</str>
    <str name="queryAnalyzerFieldType">tokenAnalyzer</str>
    <str name="field">suggest_Manu</str>  <!-- the indexed field to derive suggestions from -->
    <str name="buildOnCommit">true</str>
  </lst>
</searchComponent>

<requestHandler class="solr.SearchHandler" name="/suggest">
  <lst name="defaults">
    <str name="spellcheck">true</str>
    <str name="suggest">true</str>
    <str name="suggest.dictionary">suggest</str>
    <str name="suggest.dictionary">suggest2</str>
    <str name="spellcheck.onlyMorePopular">true</str>
    <str name="spellcheck.count">5</str>
    <str name="spellcheck.collate">true</str>
  </lst>
  <arr name="components">
    <str>suggest</str>
  </arr>
</requestHandler>

Answer 1

在您的 solrconfig.xml 中，两个建议器 lookupImpl 参数都是 org.apache.solr.spelling.suggest.fst.AnalyzingInfixLookupFactory

<str
 name="lookupImpl">org.apache.solr.spelling.suggest.fst.AnalyzingInfixLookupFactory</str>

尝试用

更改Suggester2 lookupImpl

模糊查找工厂

<str
name="lookupImpl">org.apache.solr.spelling.suggest.fst.FuzzyLookupFactory</str>

Answer 2

感谢您的回答@Dhanesh S Radhakrishnar，您是对的，但是我们实际上正在将 AnalyzingInfixLookupFactory 更改为 FuzzyLookupFactory，它可以工作，但我们的目的已经丢失。无论如何我找到了解决方案，问题是，我们需要在第二个建议器的实现中添加分析器的 indexPath。 :)

<searchComponent class="solr.SuggestComponent" name="suggest">
  <lst name="suggester">
    <str name="name">mySuggester</str>
    <str name="lookupImpl">AnalyzingInfixLookupFactory</str>
    <str name="dictionaryImpl">DocumentDictionaryFactory</str>
    <str name="field">suggest_Manu</str>  <!-- the indexed field to derive suggestions from -->
    <str name="weightField">productId_meter</str>
    <str name="suggestAnalyzerFieldType">suggestAnalyzer</str>
    <str name="buildOnCommit">true</str>

  </lst>


  <lst name="suggester">

    <str name="name">mySuggester2</str>
    <str name="lookupImpl">AnalyzingInfixLookupFactory</str>
    <str name="dictionaryImpl">DocumentDictionaryFactory</str>
    <str name="field">suggest_Name</str>  <!-- the indexed field to derive suggestions from -->
    <str name="weightExpression">productId_meter</str>
    <str name="suggestAnalyzerFieldType">suggestAnalyzer</str>
    <str name="indexPath">path-of-system-dir/newSuggester2</str>
    <str name="buildOnCommit">true</str>

  </lst>

</searchComponent>