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Posted to dev@lucene.apache.org by "Des Lownds (JIRA)" <ji...@apache.org> on 2011/08/31 18:09:10 UTC
[jira] [Commented] (SOLR-2650) Empty docs array on response with
grouping and result pagination
[ https://issues.apache.org/jira/browse/SOLR-2650?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13094643#comment-13094643 ]
Des Lownds commented on SOLR-2650:
----------------------------------
I was able to duplicate this problem, and was also seeing the following stack trace in some circumstances:
{code}
SEVERE: java.lang.ArrayIndexOutOfBoundsException: 35
at org.apache.solr.search.DocSlice$1.nextDoc(DocSlice.java:117)
at org.apache.solr.response.XMLWriter$3.writeDocs(XMLWriter.java:543)
at org.apache.solr.response.XMLWriter.writeDocuments(XMLWriter.java:482)
at org.apache.solr.response.XMLWriter.writeDocList(XMLWriter.java:519)
at org.apache.solr.response.XMLWriter.writeVal(XMLWriter.java:582)
at org.apache.solr.response.XMLWriter.writeNamedList(XMLWriter.java:620)
at org.apache.solr.response.XMLWriter.writeVal(XMLWriter.java:593)
at org.apache.solr.response.XMLWriter.writeNamedList(XMLWriter.java:620)
at org.apache.solr.response.XMLWriter.writeVal(XMLWriter.java:593)
at org.apache.solr.response.XMLWriter.writeResponse(XMLWriter.java:131)
at org.apache.solr.response.XMLResponseWriter.write(XMLResponseWriter.java:35)
at org.apache.solr.servlet.SolrDispatchFilter.writeResponse(SolrDispatchFilter.java:343)
at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:265)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:589)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:291)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:602)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
at java.lang.Thread.run(Thread.java:662)
{code}
> Empty docs array on response with grouping and result pagination
> ----------------------------------------------------------------
>
> Key: SOLR-2650
> URL: https://issues.apache.org/jira/browse/SOLR-2650
> Project: Solr
> Issue Type: Bug
> Components: search
> Affects Versions: 3.3
> Reporter: Massimo Schiavon
>
> Requesting a certain number of rows and setting start parameter to a greater value returns 0 results with grouping enabled.
> For example, requesting:
> http://localhost:8080/solr/web/select/?q=*:*&rows=1&start=2
> (grouping and highlighting are enabled by default)
> I get this response:
> [...]
> response: {
> numFound: 117852
> start: 2
> docs: [ ]
> }
> highlighting: {
> 0938630598: {
> title: [ "..." ]
> content: [ "..." ]
> }
> }
> [...]
> docs array is empty while the highlighted values of the document are present
> Debugging the request in
> org.apache.solr.search.Grouping.Command.createSimpleResponse() at row 534
> [...]
> int len = Math.min(numGroups, docsGathered);
> if (offset > len) {
> len = 0;
> }
> [...]
> The initial vars values are:
> numGroups = 1
> docsGathered = 3
> offset = 2
> so after the execution len = 0
> I've tried commenting the if statement and this resolves the issue but could introduce some other bugs.
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