我正在开发一个Web应用程序。我使用spring mvc framework，cassandra和solr。我使用独立的Solr，而不是Solr Cloud。我使用solr作为全文检索工具。我面临一个奇怪的问题，首先是schema.xml。
schema.xml
<schema name="KSP_core" version="1.1"> <types> <fieldType name="uuid" class="solr.UUIDField" indexed="true" /> <fieldType name="date" class="solr.TrieDateField" precisionStep="0" positionIncrementGap="0"/> <fieldType name="int" class="solr.TrieIntField" precisionStep="0" positionIncrementGap="0"/> <fieldtype name="string" class="solr.StrField" sortMissingLast="true" omitNorms="true"/> <fieldType name="long" class="solr.TrieLongField" precisionStep="0" positionIncrementGap="0"/> <fieldType name="double" class="solr.TrieDoubleField" precisionStep="0" positionIncrementGap="0"/> <fieldType name="text_ik" class="solr.TextField"> <analyzer type="index" isMaxWordLength="true" class="org.wltea.analyzer.lucene.IKAnalyzer"/> <analyzer type="query" isMaxWordLength="true" class="org.wltea.analyzer.lucene.IKAnalyzer"/> </fieldType> </types> <fields> <!-- general --> <field name="id" type="uuid" indexed="true" stored="true" multiValued="false" required="true"/> <field name="dbTable" type="string" indexed="true" stored="true" multiValued="false" /> <field name="userId" type="string" indexed="true" stored="true" multiValued="false" /> <field name="originatorId" type="string" indexed="true" stored="true" multiValued="false" /> <field name="associatedObjectId" type="string" indexed="true" stored="true" multiValued="false" /> <field name="createTime" type="date" indexed="true" stored="true"/> <field name="status" type="int" indexed="true" stored="true" multiValued="false" /> <field name="postType" type="string" indexed="true" stored="true" multiValued="false" /> <!-- user activity --> <field name="userOperate" type="string" indexed="true" stored="true" multiValued="false"/> <!--user reputation--> <field name="reputation" type="int" indexed="true" stored="true"/> <field name="dayTime" type="string" indexed="true" stored="true"/> <field name="reason" type="string" indexed="true" stored="true" multiValued="false" /> <!--user tags--> <field name="tagId" type="string" indexed="true" stored="true" multiValued="false" /> <field name="tagName" type="string" indexed="true" stored="true" multiValued="false" /> <field name="reputationOnTag" type="int" indexed="true" stored="true"/> <field name="_version_" type="long" indexed="true" stored="true"/> </fields> <uniqueKey>id</uniqueKey> <!-- field for the QueryParser to use when an explicit fieldname is absent --> <defaultSearchField>userId</defaultSearchField> <!-- SolrQueryParser configuration: defaultOperator="AND|OR" --> <solrQueryParser defaultOperator="OR"/> </schema>
然后我向您展示solrconfig.xml
<?xml version="1.0" encoding="UTF-8" ?> <!-- Licensed to the Apache Software Foundation (ASF) under one or more 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. --> <!-- This is a stripped down config file used for a simple example... It is *not* a good example to work from. --> <config> <luceneMatchVersion>LUCENE_40</luceneMatchVersion> <!-- 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="${solr.directoryFactory:solr.StandardDirectoryFactory}"/> <dataDir>${solr.core0.data.dir:}</dataDir> <updateHandler class="solr.DirectUpdateHandler2"> <updateLog> <str name="dir">${solr.core0.data.dir:}</str> </updateLog> </updateHandler> <!-- realtime get handler, guaranteed to return the latest stored fields of any document, without the need to commit or open a new searcher. The current implementation relies on the updateLog feature being enabled. --> <requestHandler name="/get" class="solr.RealTimeGetHandler"> <lst name="defaults"> <str name="omitHeader">true</str> </lst> </requestHandler> <requestHandler name="/replication" class="solr.ReplicationHandler" startup="lazy" /> <requestDispatcher handleSelect="true" > <requestParsers enableRemoteStreaming="false" multipartUploadLimitInKB="2048" /> </requestDispatcher> <requestHandler name="standard" class="solr.StandardRequestHandler" default="true" /> <requestHandler name="/analysis/field" startup="lazy" class="solr.FieldAnalysisRequestHandler" /> <requestHandler name="/update" class="solr.UpdateRequestHandler" /> <requestHandler name="/admin/" class="org.apache.solr.handler.admin.AdminHandlers" /> <requestHandler name="/admin/ping" class="solr.PingRequestHandler"> <lst name="invariants"> <str name="q">solrpingquery</str> </lst> <lst name="defaults"> <str name="echoParams">all</str> </lst> </requestHandler> <!-- config for the admin interface --> <admin> <defaultQuery>solr</defaultQuery> </admin> </config>
当我从solr查询数据时，通常使用solrj库来实现查询。喜欢：
String queryExpression = "*:*"; String sortField = "createTime"; String baseUrl = SolrUtil.getSolrBaseURL(solrHttpServer.getBaseURL()); solrHttpServer.setBaseURL(baseUrl + "/" + coreName); SolrQuery query = new SolrQuery(); query.setQuery(queryExpression); query.setSortField(sortField, SolrQuery.ORDER.asc); QueryResponse rsp = solrHttpServer.query(query);
以下代码是查询期间的错误信息：
org.apache.solr.common.SolrException: undefined field userId at org.apache.solr.client.solrj.impl.HttpSolrServer.request(HttpSolrServer.java:401) at org.apache.solr.client.solrj.impl.HttpSolrServer.request(HttpSolrServer.java:181) at org.apache.solr.client.solrj.request.QueryRequest.process(QueryRequest.java:90) at org.apache.solr.client.solrj.SolrServer.query(SolrServer.java:301) at com.augmentum.ksp.solr.dao.impl.SolrBaseDaoImpl.query(SolrBaseDaoImpl.java:141) at com.augmentum.ksp.service.impl.TagStatsServiceImpl.getUserTagStats(TagStatsServiceImpl.java:50) at com.augmentum.ksp.controller.TagStatsController.getUserTagStats(TagStatsController.java:162) at sun.reflect.GeneratedMethodAccessor188.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:213) at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:126) at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:96) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:617) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:578) at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:923) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:852) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:882) at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:778) at javax.servlet.http.HttpServlet.service(HttpServlet.java:617) at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.jasig.cas.client.util.AssertionThreadLocalFilter.doFilter(AssertionThreadLocalFilter.java:54) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.jasig.cas.client.util.HttpServletRequestWrapperFilter.doFilter(HttpServletRequestWrapperFilter.java:75) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.jasig.cas.client.validation.AbstractTicketValidationFilter.doFilter(AbstractTicketValidationFilter.java:201) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at com.augmentum.iaphelper.filter.AuthenticationFilter.doFilter(Unknown Source) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.jasig.cas.client.session.SingleSignOutFilter.doFilter(SingleSignOutFilter.java:76) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at com.augmentum.ksp.filter.I18nFilter.doFilter(I18nFilter.java:22) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447) at java.lang.Thread.run(Thread.java:619)
从这些信息中，我只知道我的控制器，服务和dao正常工作。奇怪的是，它通常在大多数时间都能正常工作，但是错误必须在刷新JSP页面20次之内发生，这使我感到担心。我可以保证我的Solr服务器正常启动。并且索引已加载。我不知道如何找到解决方法，因为我不知道问题的根源。
此外，发生了许多相同的错误，如下所示，这次不是名为userId的字段，而是名为dbTable的字段。
org.apache.solr.common.SolrException: undefined field dbTable at org.apache.solr.client.solrj.impl.HttpSolrServer.request(HttpSolrServer.java:401) at org.apache.solr.client.solrj.impl.HttpSolrServer.request(HttpSolrServer.java:181) at org.apache.solr.client.solrj.request.QueryRequest.process(QueryRequest.java:90) at org.apache.solr.client.solrj.SolrServer.query(SolrServer.java:301) at com.augmentum.ksp.solr.dao.impl.SolrBaseDaoImpl.query(SolrBaseDaoImpl.java:135) at com.augmentum.ksp.service.impl.UserServiceImpl.listUserReputationByTime(UserServiceImpl.java:1222) at com.augmentum.ksp.controller.UserControler.listUserReputationByTime(UserControler.java:374) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:213) at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:126) at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:96) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:617) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:578) at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:923) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:852) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:882) at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:778) at javax.servlet.http.HttpServlet.service(HttpServlet.java:617) at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.jasig.cas.client.util.AssertionThreadLocalFilter.doFilter(AssertionThreadLocalFilter.java:54) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.jasig.cas.client.util.HttpServletRequestWrapperFilter.doFilter(HttpServletRequestWrapperFilter.java:75) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.jasig.cas.client.validation.AbstractTicketValidationFilter.doFilter(AbstractTicketValidationFilter.java:201) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at com.augmentum.iaphelper.filter.AuthenticationFilter.doFilter(Unknown Source) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.jasig.cas.client.session.SingleSignOutFilter.doFilter(SingleSignOutFilter.java:76) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at com.augmentum.ksp.filter.I18nFilter.doFilter(I18nFilter.java:22) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447) at java.lang.Thread.run(Thread.java:619)
有人遇到过同样的问题吗？
如我所见，您在代码中更改了baseUrl。如您在评论中所说，您在同一页面上查询多个内核，并且所有内核都使用相同的HttpSolrServer。因此，您的解决方案似乎缺乏同步性，可能同时有两个请求在运行，而一个请求却在查询另一个的“核心”。
HttpSolrServer
当然，您可以同步您的方法。但我认为，就您而言，最好不要HttpSolrServer每次都抽动，而应为查询设置附加参数，这将用作您的附加路径baseUrl。您将需要设置baseUrl为HttpSolrServer在创建时一次：
baseUrl
HttpSolrServer solrHttpServer = new HttpSolrServer(baseUrl);
而不是为每个查询更改它，而是设置参数（代码的diff）：
String queryExpression = "*:*"; String sortField = "createTime"; -String baseUrl = SolrUtil.getSolrBaseURL(solrHttpServer.getBaseURL()); -solrHttpServer.setBaseURL(baseUrl + "/" + coreName); SolrQuery query = new SolrQuery(); +query.set(CommonParams.QT, "/" + coreName + "/select"); query.setQuery(queryExpression); query.setSortField(sortField, SolrQuery.ORDER.asc); QueryResponse rsp = solrHttpServer.query(query);
但是最好的解决方案是HttpSolrServer为每个核心分别设置：
Map<String, HttpSolrServer> servers = new HashMap<String, HttpSolrServer>(); servers.put(coreName1, new HttpSolrServer(baseUrl + "/" + coreName1)); ...
结果代码更改：
String queryExpression = "*:*"; String sortField = "createTime"; -String baseUrl = SolrUtil.getSolrBaseURL(solrHttpServer.getBaseURL()); -solrHttpServer.setBaseURL(baseUrl + "/" + coreName); SolrQuery query = new SolrQuery(); query.setQuery(queryExpression); query.setSortField(sortField, SolrQuery.ORDER.asc); -QueryResponse rsp = solrHttpServer.query(query); +QueryResponse rsp = servers.get(coreName).query(query);
