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https://issues.apache.org/jira/browse/SOLR-8319?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Isabelle Giguere updated SOLR-8319:
-----------------------------------
Attachment: SOLR-8319-1.patch
> NPE when creating pivot
> -----------------------
>
> Key: SOLR-8319
> URL: https://issues.apache.org/jira/browse/SOLR-8319
> Project: Solr
> Issue Type: Bug
> Reporter: Neil Ireson
> Priority: Major
> Attachments: SOLR-8319-1.patch, SOLR-8319.patch
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> I get a NPE, the trace is shown at the end.
> The problem seems to be this line in the getSubset method:
> Query query = ft.getFieldQuery(null, field, pivotValue);
> Which takes a value from the index and then analyses it to create a query. I
> believe the problem is that when my analysis process is applied twice it
> results in a null query. OK this might be seen as my issue because of dodgy
> analysis, I thought it might be because I have the wrong order with
> LengthFilterFactory before EnglishPossessiveFilterFactory and
> KStemFilterFactory, i.e.:
> <filter class="solr.LengthFilterFactory" min="3" max="32"/>
> <filter class="solr.EnglishPossessiveFilterFactory"/>
> <filter class="solr.KStemFilterFactory"/>
> So that "cat's" -> "cat" -> "", however any filter order I tried still
> resulted in a NPE, and perhaps there is a viable case where parsing a term
> twice results in a null query.
> The thing is I don't see why when the query term comes from the index it has
> to undergo any analysis. If the term is from the index can it not simply be
> created using a TermQuery, which I would imagine would also be faster. I
> altered the "getFieldQuery" line above to the following and that has fixed my
> NPE issue.
> Query query = new TermQuery(new Term(field.getName(), pivotValue));
> So far this hasn't caused any other issues but perhaps that is due to my use
> of Solr, rather than actually fixing an issue.
> o.a.s.c.SolrCore java.lang.NullPointerException
> at
> java.util.concurrent.ConcurrentHashMap.get(ConcurrentHashMap.java:936)
> at
> org.apache.solr.util.ConcurrentLRUCache.get(ConcurrentLRUCache.java:91)
> at org.apache.solr.search.FastLRUCache.get(FastLRUCache.java:130)
> at
> org.apache.solr.search.SolrIndexSearcher.getDocSet(SolrIndexSearcher.java:1296)
> at
> org.apache.solr.handler.component.PivotFacetProcessor.getSubset(PivotFacetProcessor.java:375)
> at
> org.apache.solr.handler.component.PivotFacetProcessor.doPivots(PivotFacetProcessor.java:305)
> at
> org.apache.solr.handler.component.PivotFacetProcessor.processSingle(PivotFacetProcessor.java:228)
> at
> org.apache.solr.handler.component.PivotFacetProcessor.process(PivotFacetProcessor.java:170)
> at
> org.apache.solr.handler.component.FacetComponent.process(FacetComponent.java:262)
> at
> org.apache.solr.handler.component.SearchHandler.handleRequestBody(SearchHandler.java:277)
> at
> org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:143)
> at org.apache.solr.core.SolrCore.execute(SolrCore.java:2068)
> at org.apache.solr.servlet.HttpSolrCall.execute(HttpSolrCall.java:669)
> at org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:462)
> at
> org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:214)
> at
> org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:179)
> 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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