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https://issues.apache.org/jira/browse/SOLR-8921?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Isabelle Giguere updated SOLR-8921:
-----------------------------------
Attachment: SOLR-8921.patch
Identical patch based on Solr 6.6.0. No change in code, the old patch could
still be used. I which I could have added a unit test... see previous comment.
> Potential NPE in pivot facet
> ----------------------------
>
> Key: SOLR-8921
> URL: https://issues.apache.org/jira/browse/SOLR-8921
> Project: Solr
> Issue Type: Bug
> Affects Versions: 5.4.1
> Reporter: Steve Molloy
> Attachments: SOLR-8921.patch, SOLR-8921.patch
>
>
> For some queries distributed over multiple collections, I've hit a NPE when
> SolrIndexSearcher tries to fetch results from cache. Basically, query
> generated to compute pivot on document sub set is null, causing the NPE on
> lookup.
> 2016-03-28 11:34:58.361 ERROR (qtp268141378-751) [c:otif_fr s:shard1
> r:core_node1 x:otif_fr_shard1_replica1] o.a.s.h.RequestHandlerBase
> java.lang.NullPointerException
> at
> java.util.concurrent.ConcurrentHashMap.get(ConcurrentHashMap.java:936)
> at
> org.apache.solr.util.ConcurrentLFUCache.get(ConcurrentLFUCache.java:92)
> at org.apache.solr.search.LFUCache.get(LFUCache.java:153)
> at
> org.apache.solr.search.SolrIndexSearcher.getPositiveDocSet(SolrIndexSearcher.java:940)
> at
> org.apache.solr.search.SolrIndexSearcher.numDocs(SolrIndexSearcher.java:2098)
> at
> org.apache.solr.handler.component.PivotFacetProcessor.getSubsetSize(PivotFacetProcessor.java:356)
> at
> org.apache.solr.handler.component.PivotFacetProcessor.processSingle(PivotFacetProcessor.java:219)
> at
> org.apache.solr.handler.component.PivotFacetProcessor.process(PivotFacetProcessor.java:167)
> at
> org.apache.solr.handler.component.FacetComponent.process(FacetComponent.java:263)
> at
> org.apache.solr.handler.component.SearchHandler.handleRequestBody(SearchHandler.java:273)
> at
> org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:156)
> at org.apache.solr.core.SolrCore.execute(SolrCore.java:2073)
> at org.apache.solr.servlet.HttpSolrCall.execute(HttpSolrCall.java:658)
> at org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:457)
> at
> org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:223)
> at
> org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:181)
> at
> org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
> at
> org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:585)
> at
> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
> at
> org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:577)
> at
> org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:223)
> at
> org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1127)
> at
> org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:515)
> at
> org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)
> at
> org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1061)
> at
> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
> at
> org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:215)
> at
> org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:110)
> at
> org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)
> at org.eclipse.jetty.server.Server.handle(Server.java:499)
> at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:310)
> at
> org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:257)
> at
> org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:540)
> at
> org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635)
> at
> org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555)
> at java.lang.Thread.run(Thread.java:745)
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