You are viewing a plain text version of this content. The canonical link for it is here.
Posted to dev@lucene.apache.org by "Uwe Schindler (JIRA)" <ji...@apache.org> on 2015/12/14 22:10:49 UTC
[jira] [Updated] (SOLR-7435) NPE can occur if
CollapsingQParserPlugin is used two or more times in the same query
[ https://issues.apache.org/jira/browse/SOLR-7435?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Uwe Schindler updated SOLR-7435:
--------------------------------
Fix Version/s: (was: 5.4)
5.5
> NPE can occur if CollapsingQParserPlugin is used two or more times in the same query
> ------------------------------------------------------------------------------------
>
> Key: SOLR-7435
> URL: https://issues.apache.org/jira/browse/SOLR-7435
> Project: Solr
> Issue Type: Bug
> Affects Versions: 4.8.1, 4.9.1, 4.10.1, 4.10.3, 4.10.4, 5.1, 5.2, 5.2.1, 5.3
> Reporter: Markus Jelsma
> Priority: Minor
> Fix For: 5.5
>
>
> The problem is that Solr 4.10.3, CollapsingFieldValueCollector.finish(CollapsingQParserPlugin.java:632) is looking ahead to the next segment. When you use the CollapsingQParser only once that look-ahead is always populated because each segment is processed by the scorers. The CollapsingQParser plugin does not process every segment though, it stops when it runs out of documents that have been collected. So the look-ahead can cause a null pointer in the second Collapse. This is a problem in every version of the CollapsingQParserPlugin.
> Below is the original description from Markus which is another NPE during a look-ahead in Solr 5.1:
> Not even sure it would work anyway, i tried to collapse on two distinct fields, ending up with this:
> select?q=*:*&fq={!collapse field=qst}&fq={!collapse field=rdst}
> {code}
> 584550 [qtp1121454968-20] ERROR org.apache.solr.servlet.SolrDispatchFilter [ suggests] – null:java.lang.NullPointerException
> at org.apache.solr.search.CollapsingQParserPlugin$IntScoreCollector.finish(CollapsingQParserPlugin.java:743)
> at org.apache.solr.search.CollapsingQParserPlugin$IntScoreCollector.finish(CollapsingQParserPlugin.java:780)
> at org.apache.solr.search.SolrIndexSearcher.buildAndRunCollectorChain(SolrIndexSearcher.java:203)
> at org.apache.solr.search.SolrIndexSearcher.getDocListNC(SolrIndexSearcher.java:1660)
> at org.apache.solr.search.SolrIndexSearcher.getDocListC(SolrIndexSearcher.java:1479)
> at org.apache.solr.search.SolrIndexSearcher.search(SolrIndexSearcher.java:556)
> at org.apache.solr.handler.component.QueryComponent.process(QueryComponent.java:518)
> at org.apache.solr.handler.component.SearchHandler.handleRequestBody(SearchHandler.java:222)
> at org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:143)
> at org.apache.solr.core.SolrCore.execute(SolrCore.java:1984)
> at org.apache.solr.servlet.SolrDispatchFilter.execute(SolrDispatchFilter.java:829)
> at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:446)
> at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:220)
> at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1419)
> at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:455)
> at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:137)
> at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:557)
> at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:231)
> at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1075)
> at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:384)
> at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:193)
> at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1009)
> at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135)
> at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:255)
> at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:154)
> at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116)
> at org.eclipse.jetty.server.Server.handle(Server.java:368)
> at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:489)
> at org.eclipse.jetty.server.BlockingHttpConnection.handleRequest(BlockingHttpConnection.java:53)
> at org.eclipse.jetty.server.AbstractHttpConnection.headerComplete(AbstractHttpConnection.java:942)
> at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.headerComplete(AbstractHttpConnection.java:1004)
> at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:640)
> at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:235)
> at org.eclipse.jetty.server.BlockingHttpConnection.handle(BlockingHttpConnection.java:72)
> at org.eclipse.jetty.server.bio.SocketConnector$ConnectorEndPoint.run(SocketConnector.java:264)
> at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:608)
> at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:543)
> at java.lang.Thread.run(Thread.java:745)
> {code}
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscribe@lucene.apache.org
For additional commands, e-mail: dev-help@lucene.apache.org