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From "Commit Tag Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-4150) NPE in distributed result grouping if group.query has no results
Date Thu, 13 Dec 2012 20:04:12 GMT

    [ https://issues.apache.org/jira/browse/SOLR-4150?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13531419#comment-13531419
] 

Commit Tag Bot commented on SOLR-4150:
--------------------------------------

[trunk commit] Chris M. Hostetter
http://svn.apache.org/viewvc?view=revision&revision=1421451

SOLR-4150: tests for existing fix.  includes workarround for SOLR-4181

                
> NPE in distributed result grouping if group.query has no results
> ----------------------------------------------------------------
>
>                 Key: SOLR-4150
>                 URL: https://issues.apache.org/jira/browse/SOLR-4150
>             Project: Solr
>          Issue Type: Bug
>          Components: SolrCloud
>    Affects Versions: 4.0
>            Reporter: Lance Norskog
>            Assignee: Tommaso Teofili
>             Fix For: 4.1
>
>         Attachments: SOLR-4150.test.patch
>
>
> If group.query has no results in a distributed search, there is an NPE in the front-end:
> {noformat}
> Dec 5, 2012 10:40:31 PM org.apache.solr.core.SolrCore execute
> INFO: [collection1] webapp=/solr path=/select params={debugQuery=true&group.ngroups=true&fl=thing,eventid&indent=true&q=thing:("CODE:20517")&group.field=eventid&group.query=thing:CODE*&group=true&wt=json&fq=source:somewhere}
status=500 QTime=745 
> Dec 5, 2012 10:40:31 PM org.apache.solr.common.SolrException log
> SEVERE: null:java.lang.NullPointerException
> 	at org.apache.solr.search.grouping.distributed.shardresultserializer.TopGroupsResultTransformer.transformToNative(TopGroupsResultTransformer.java:110)
> 	at org.apache.solr.search.grouping.distributed.responseprocessor.TopGroupsShardResponseProcessor.process(TopGroupsShardResponseProcessor.java:80)
> 	at org.apache.solr.handler.component.QueryComponent.handleGroupedResponses(QueryComponent.java:620)
> 	at org.apache.solr.handler.component.QueryComponent.handleResponses(QueryComponent.java:603)
> 	at org.apache.solr.handler.component.SearchHandler.handleRequestBody(SearchHandler.java:309)
> 	at org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:129)
> 	at org.apache.solr.core.SolrCore.execute(SolrCore.java:1699)
> 	at org.apache.solr.servlet.SolrDispatchFilter.execute(SolrDispatchFilter.java:455)
> 	at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:276)
> 	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1337)
> 	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:484)
> 	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:119)
> 	at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:524)
> 	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:233)
> 	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1065)
> 	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:413)
> 	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:192)
> 	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:999)
> 	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:117)
> 	at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:250)
> 	at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:149)
> 	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:111)
> 	at org.eclipse.jetty.server.Server.handle(Server.java:351)
> 	at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:454)
> 	at org.eclipse.jetty.server.BlockingHttpConnection.handleRequest(BlockingHttpConnection.java:47)
> 	at org.eclipse.jetty.server.AbstractHttpConnection.headerComplete(AbstractHttpConnection.java:890)
> 	at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.headerComplete(AbstractHttpConnection.java:944)
> 	at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:634)
> 	at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:230)
> 	at org.eclipse.jetty.server.BlockingHttpConnection.handle(BlockingHttpConnection.java:66)
> 	at org.eclipse.jetty.server.bio.SocketConnector$ConnectorEndPoint.run(SocketConnector.java:254)
> 	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:599)
> 	at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:534)
> 	at java.lang.Thread.run(Thread.java:662)
> {noformat}
> (This is in sharding, maybe not a SolrCloud problem.)

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