I’m new to java, but i need to use solr as “full text search” engine…
I was able to install it and run it successfully, but I need to use the “suggester component”
Here is my suggester configuration:
<searchComponent name="suggester" class="solr.SpellCheckComponent">
<lst name="spellchecker" >
<str name="name">suggester</str>
<str name="classname">org.apache.solr.spelling.suggest.Suggester</str>
<str name="lookupImpl">org.apache.solr.spelling.suggest.tst.TSTLookupFactory</str>
<str name="field">name</str>
<!-- <str name="threshold">2</str> -->
</lst>
</searchComponent>
<requestHandler class="org.apache.solr.handler.component.SearchHandler" name="/suggester">
<lst name="defaults">
<str name="spellcheck" >true</str>
<str name="spellcheck.dictionary">suggester</str>
<str name="spellcheck.count">10</str>
</lst>
<arr name="component" >
<str>suggester</str>
</arr>
</requestHandler>
I’m running it with command java -jar start.jar ( like this website ) and get the following error
INFO: Closing Searcher@1220b36 main
fieldValueCache{lookups=0,hits=0,hitratio=0.00,inserts=0,evictions=0,size=0,warmupTime=0,cumulative_lookups=0,cumulative_hits=0,cumulative_hitratio=0.00,cumulative_inserts=0,cumulative_evictions=0}
filterCache{lookups=0,hits=0,hitratio=0.00,inserts=0,evictions=0,size=0,warmupTime=0,cumulative_lookups=0,cumulative_hits=0,cumulative_hitratio=0.00,cumulative_inserts=0,cumulative_evictions=0}
queryResultCache{lookups=0,hits=0,hitratio=0.00,inserts=0,evictions=0,size=0,warmupTime=0,cumulative_lookups=0,cumulative_hits=0,cumulative_hitratio=0.00,cumulative_inserts=0,cumulative_evictions=0}
documentCache{lookups=0,hits=0,hitratio=0.00,inserts=0,evictions=0,size=0,warmupTime=0,cumulative_lookups=0,cumulative_hits=0,cumulative_hitratio=0.00,cumulative_inserts=0,cumulative_evictions=0}
Aug 9, 2012 5:14:32 PM org.apache.solr.common.SolrException log
SEVERE: org.apache.solr.common.SolrException
at org.apache.solr.core.SolrCore.<init>(SolrCore.java:600)
at org.apache.solr.core.CoreContainer.create(CoreContainer.java:480)
at org.apache.solr.core.CoreContainer.load(CoreContainer.java:332)
at org.apache.solr.core.CoreContainer.load(CoreContainer.java:216)
at org.apache.solr.core.CoreContainer$Initializer.initialize(CoreContainer.java:161)
at org.apache.solr.servlet.SolrDispatchFilter.init(SolrDispatchFilter.java:96)
at org.mortbay.jetty.servlet.FilterHolder.doStart(FilterHolder.java:97)
at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
at org.mortbay.jetty.servlet.ServletHandler.initialize(ServletHandler.java:713)
at org.mortbay.jetty.servlet.Context.startContext(Context.java:140)
at org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1282)
at org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:518)
at org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:499)
at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
at org.mortbay.jetty.handler.HandlerCollection.doStart(HandlerCollection.java:152)
at org.mortbay.jetty.handler.ContextHandlerCollection.doStart(ContextHandlerCollection.java:156)
at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
at org.mortbay.jetty.handler.HandlerCollection.doStart(HandlerCollection.java:152)
at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130)
at org.mortbay.jetty.Server.doStart(Server.java:224)
at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
at org.mortbay.xml.XmlConfiguration.main(XmlConfiguration.java:985)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:616)
at org.mortbay.start.Main.invokeMain(Main.java:194)
at org.mortbay.start.Main.start(Main.java:534)
at org.mortbay.start.Main.start(Main.java:441)
at org.mortbay.start.Main.main(Main.java:119)
Caused by: org.apache.solr.common.SolrException: Error loading class 'org.apache.solr.spelling.suggest.tst.TSTLookupFactory
'
at org.apache.solr.core.SolrResourceLoader.findClass(SolrResourceLoader.java:394)
at org.apache.solr.core.SolrResourceLoader.newInstance(SolrResourceLoader.java:409)
at org.apache.solr.spelling.suggest.Suggester.init(Suggester.java:100)
at org.apache.solr.handler.component.SpellCheckComponent.inform(SpellCheckComponent.java:598)
at org.apache.solr.core.SolrResourceLoader.inform(SolrResourceLoader.java:527)
at org.apache.solr.core.SolrCore.<init>(SolrCore.java:594)
... 30 more
Caused by: java.lang.ClassNotFoundException: org.apache.solr.spelling.suggest.tst.TSTLookupFactory
at java.net.URLClassLoader$1.run(URLClassLoader.java:217)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:205)
at java.lang.ClassLoader.loadClass(ClassLoader.java:321)
at java.net.FactoryURLClassLoader.loadClass(URLClassLoader.java:615)
at java.lang.ClassLoader.loadClass(ClassLoader.java:266)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:264)
at org.apache.solr.core.SolrResourceLoader.findClass(SolrResourceLoader.java:378)
... 35 more
I looked up the class and I found it in $SOLR_HOME/dist/apache-solr-core-[solr version].jar
so I tried to run Solr with command
java -cp $SOLR_HOME/dist/apache-solr-core-3.6.1 -jar start.jar
But i got the same error
You don’t need to customize anything in order to use the Suggester, neither to find that class, which is already included in Solr. I would start with a fresh downloaded Solr 3.6.1 (or just revert the changes you made). The problem is in your configuration, which contains a line feed between the name of the class and the end of the xml element
</str>. That’s why SOlr can’t find that class. Just remove the line feed and everything will work!