Hi,
I've been trying to get a suggester working with the
HighFrequencyDictionaryFactory but when setting the threshold I'm getting a
ClassCastException when the dictionary is built.
Could someone please advise?
To reproduce:
1. Download solr 6.6
2. Replace the SuggestComponent within the techproducts' solrconfig.xml
with:
<searchComponent name="suggest" class="solr.SuggestComponent">
<lst name="suggester">
<str name="name">mySuggester</str>
<str name="lookupImpl">FuzzyLookupFactory</str>
<str name="dictionaryImpl">HighFrequencyDictionaryFactory</str>
<str name="threshold">0.005</str>
<str name="field">cat</str>
<str name="suggestAnalyzerFieldType">string</str>
<str name="buildOnStartup">false</str>
</lst>
</searchComponent>
3. Run the techproducts example: "solr start -e techproducts"
4. Visit
http://localhost:8983/solr/techproducts/suggest?suggest=true&suggest.build=true&suggest.dictionary=mySuggester&suggest.q=elec
I then see the following response:
<response>
<lst name="responseHeader">
<int name="status">500</int>
<int name="QTime">5</int>
</lst>
<lst name="error">
<str name="msg">java.lang.String cannot be cast to java.lang.Float</str>
<str name="trace">
java.lang.ClassCastException: java.lang.String cannot be cast to
java.lang.Float at
org.apache.solr.spelling.suggest.HighFrequencyDictionaryFactory.create(HighFrequencyDictionaryFactory.java:47)
at
org.apache.solr.spelling.suggest.SolrSuggester.build(SolrSuggester.java:179)
at
org.apache.solr.handler.component.SuggestComponent.prepare(SuggestComponent.java:179)
at
org.apache.solr.handler.component.SearchHandler.handleRequestBody(SearchHandler.java:270)
at
org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:173)
at org.apache.solr.core.SolrCore.execute(SolrCore.java:2477) at
org.apache.solr.servlet.HttpSolrCall.execute(HttpSolrCall.java:723) at
org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:529) at
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:361)
at
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:305)
at
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1691)
at
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:582)
at
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
at
org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548)
at
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:226)
at
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1180)
at
org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:512)
at
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)
at
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1112)
at
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
at
org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:213)
at
org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:119)
at
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:134)
at
org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:335)
at
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:134)
at org.eclipse.jetty.server.Server.handle(Server.java:534) at
org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:320) at
org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:251)
at
org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:273)
at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:95) at
org.eclipse.jetty.io.SelectChannelEndPoint$2.run(SelectChannelEndPoint.java:93)
at
org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.executeProduceConsume(ExecuteProduceConsume.java:303)
at
org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.produceConsume(ExecuteProduceConsume.java:148)
at
org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.run(ExecuteProduceConsume.java:136)
at
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:671)
at
org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:589)
at java.lang.Thread.run(Thread.java:745)
</str>
<int name="code">500</int>
</lst>
</response>
Thanks,
Craig
