Guido created SOLR-6167:
---------------------------
Summary: 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
Fix For: 4.8
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_A_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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