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https://issues.apache.org/jira/browse/SOLR-6167?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14072280#comment-14072280
]
Guido commented on SOLR-6167:
-----------------------------
You was right: I solved this issue by modifying my library accordingly to the
new version of Solr.
Thank you very much for your help.
Best Regards,
Guido
> SolrDocumentList cannot be cast to ResultContext on Solr 4.8.0
> --------------------------------------------------------------
>
> Key: SOLR-6167
> URL: https://issues.apache.org/jira/browse/SOLR-6167
> Project: Solr
> Issue Type: Bug
> Components: clients - php
> Affects Versions: 4.8
> Environment: Linux
> Reporter: Guido
> Labels: ResultContext, SolrSolrDocumentList, solrcloud
>
> Hello,
> I have a running instance of Solr 4.2.1 (I will refer to it as 'instance A')
> and I am trying to pass to Solr 4.8.0. For this purpose, I created a copy of
> the machine which hosts 'instance A' (I will refer to the copy as 'instance
> B') and, on this new machine, I have installed Solr 4.8.0 and I have created
> a collection with 4 shards. Then, on the new machine, I have iterated over a
> copy of the index built on instance A and I have re-indexed all the documents
> and inserted them inside the new collection of Solr 4.8.0. I have completed
> this process, the two index seem to contain the same documents and I am
> successfully able to query properly both the indexes.
> When I try to run the following query on 'instance A':
> http://instance_A_ip:23332/solr/myindex/query?q=id%3Amyid&fl=html&wt=html
> I get a well formatted html response. Unfortunately, when I try the same
> query on the 'instance B'
> http://instance_B_ip:23332/solr/mycollection/query?q=id%3Amyid&fl=html&wt=html
> I receive the following error code:
> HTTP Status 500 - {msg=org.apache.solr.common.SolrDocumentList cannot be cast
> to org.apache.solr.response.ResultContext,trace=java.lang.ClassCastException:
> org.apache.solr.common.SolrDocumentList cannot be cast to
> org.apache.solr.response.ResultContext at
> my.library.solr.HtmlResponseWriter.write(HtmlResponseWriter.java:33) at
> org.apache.solr.servlet.SolrDispatchFilter.writeResponse(SolrDispatchFilter.java:762)
> at
> org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:431)
> at
> org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:207)
> 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:127)
> at
> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
> at
> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
> at
> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
> at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:861)
> at
> org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:606)
> at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
> at java.lang.Thread.run(Thread.java:744) ,code=500}
> This is the error that I grep from the solr log file:
> org.apache.solr.common.SolrException; null:java.lang.ClassCastException:
> org.apache.solr.common.SolrDocumentList cannot be cast to
> org.apache.solr.response.ResultContext
> at
> my.library.solr.HtmlResponseWriter.write(HtmlResponseWriter.java:33)
> at
> org.apache.solr.servlet.SolrDispatchFilter.writeResponse(SolrDispatchFilter.java:762)
> at
> org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:431)
> at
> org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:207)
> 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:127)
> at
> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
> at
> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
> at
> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
> at
> org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:861)
> at
> org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:606)
> at
> org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
> at java.lang.Thread.run(Thread.java:744)
>
> This is the error that I grep from the tomcat log file:
>
> org.apache.solr.servlet.SolrDispatchFilter –
> null:java.lang.ClassCastException: org.apache.solr.common.SolrDocumentList
> cannot be cast to org.apache.solr.response.ResultContext
> at
> my.library.solr.HtmlResponseWriter.write(HtmlResponseWriter.java:33)
> at
> org.apache.solr.servlet.SolrDispatchFilter.writeResponse(SolrDispatchFilter.java:762)
> at
> org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:431)
> at
> org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:207)
> 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:127)
> at
> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
> at
> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
> at
> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
> at
> org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:861)
> at
> org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:606)
> at
> org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
> at java.lang.Thread.run(Thread.java:744)
> The differences between instance A and instance B are:
> - the Solr versions
> - on instance A, I am using a single Solr instance (without Solr Cloud)
> - on instance B, I am using Solr Cloud and I created a collection with 4
> shards
> - I removed a couple of not necessary fields inside the schema of the
> instance B when I created the collection (before to load documents) and I
> loaded documents according to the new schema (I have not loaded the removed
> fields)
> The instance B is installed on a clone of the machine on which instance A is
> running, so the software stack as well as the hardware are the same. On both
> the machines I have installed Apache Tomcat 6.0.37.
> If I try to run the same query on instance B by specifying wt=csv I obtain
> the right field value, but unfortunately it's not a well formatted html reply.
> Inside the schema on instance A, these are the information related to the
> html field:
> Field: html
> Flags: Stored
> Properties yes
> Schema yes
> Field-Type: org.apache.solr.schema.StrField
> Index Analyzer: org.apache.solr.schema.FieldType$DefaultAnalyzer
> Query Analyzer: org.apache.solr.schema.FieldType$DefaultAnalyzer
> Inside the schema on instance B, these are the information related to the
> html field:
> Field: html
> Flags: Stored Sort Missing Last
> Properties yes yes
> Schema yes yes
> Field-Type: org.apache.solr.schema.StrField
> Index Analyzer: org.apache.solr.schema.FieldType$DefaultAnalyzer
> Query Analyzer: org.apache.solr.schema.FieldType$DefaultAnalyzer
> Do you know if there is a way to execute on a Solr cloud collection with Solr
> 4.8.0 this same query that I am successfully able to execute on my single
> instance of Solr 4.2.1?
> I would really appreciate every suggestion about it. Please, let me know if
> you need any further information.
> Thank you.
> Best Regards,
> Guido
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