[SOLR-13509] NullPointerException in JSON Facet if omitHeaders=true

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 8.1.1
• Fix Version/s: 8.2
• Component/s: Facet Module

Environment

Solr 8.1.1 downloaded tar gz, started in cloud mode:

bin/solr start -e cloud -noprompt
bin/solr create -c techproducts -s 2 -rf 2 -d server/solr/configsets/sample_techproducts_configs/conf -n sample_techproducts_configs
bin/post -c techproducts example/exampledocs/*.xml

• Assignee: Mikhail Khludnev
• Reporter: Markus Kalkbrenner
• Created: 03/Jun/19 12:47
• Updated: 26/Jul/19 08:56
• Resolved: 12/Jun/19 22:33

Description

The error exists in Solr 8.1.1 and didn't occur in Solr 8.0 and 7.x.

Running this simple JSON Facet against the techproducts example (in cloud mode) succeeds as expected:

curl http://localhost:8983/solr/techproducts/select -d '
q=*:*&
omitHeader=false&
json.facet={
  "max_price" : "max(price)"
}

But as soon you omit Headers it results in a NullPointerException (which didn't happen in earlier Solr versions):

curl http://localhost:8983/solr/techproducts/select -d '
q=*:*&
omitHeader=true&
json.facet={
  "max_price" : "max(price)"
}'

Exception:

2019-06-03 12:40:11.446 ERROR (qtp67730604-361) [c:techproducts s:shard2 r:core_node7 x:techproducts_shard2_replica_n4] o.a.s.h.RequestHandlerBase java.lang.NullPointerException
    at org.apache.solr.search.facet.FacetModule.handleResponses(FacetModule.java:284)
    at org.apache.solr.handler.component.SearchHandler.handleRequestBody(SearchHandler.java:423)
    at org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:199)
    at org.apache.solr.core.SolrCore.execute(SolrCore.java:2566)
    at org.apache.solr.servlet.HttpSolrCall.execute(HttpSolrCall.java:756)
    at org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:542)
    at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:397)
    at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:343)
    at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1602)
    at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:540)
    at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:146)
    at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548)
    at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
    at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:257)
    at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1588)
    at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:255)
    at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1345)
    at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:203)
    at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:480)
    at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1557)
    at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:201)
    at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1247)
    at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:144)
    at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:220)
    at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:126)
    at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
    at org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:335)
    at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
    at org.eclipse.jetty.server.Server.handle(Server.java:502)
    at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:364)
    at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:260)
    at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:305)
    at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:103)
    at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:118)
    at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:333)
    at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:310)
    at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:168)
    at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:126)
    at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:366)
    at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:765)
    at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:683)
    at java.base/java.lang.Thread.run(Thread.java:834)

2019-06-03 12:40:11.447 INFO  (qtp67730604-361) [c:techproducts s:shard2 r:core_node7 x:techproducts_shard2_replica_n4] o.a.s.c.S.Request [techproducts_shard2_replica_n4]  webapp=/solr path=/select params={q=*:*&json.facet={%0a++"max_price"+:+"max(price)"%0a}&omitHeader=true} hits=32 status=500 QTime=11
2019-06-03 12:40:11.447 ERROR (qtp67730604-361) [c:techproducts s:shard2 r:core_node7 x:techproducts_shard2_replica_n4] o.a.s.s.HttpSolrCall null:java.lang.NullPointerException
    at org.apache.solr.search.facet.FacetModule.handleResponses(FacetModule.java:284)
    at org.apache.solr.handler.component.SearchHandler.handleRequestBody(SearchHandler.java:423)
    at org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:199)
    at org.apache.solr.core.SolrCore.execute(SolrCore.java:2566)
    at org.apache.solr.servlet.HttpSolrCall.execute(HttpSolrCall.java:756)
    at org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:542)
    at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:397)
    at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:343)
    at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1602)
    at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:540)
    at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:146)
    at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548)
    at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
    at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:257)
    at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1588)
    at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:255)
    at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1345)
    at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:203)
    at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:480)
    at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1557)
    at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:201)
    at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1247)
    at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:144)
    at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:220)
    at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:126)
    at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
    at org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:335)
    at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
    at org.eclipse.jetty.server.Server.handle(Server.java:502)
    at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:364)
    at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:260)
    at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:305)
    at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:103)
    at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:118)
    at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:333)
    at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:310)
    at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:168)
    at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:126)
    at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:366)
    at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:765)
    at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:683)
    at java.base/java.lang.Thread.run(Thread.java:834)

 

Issue Links

• is caused by: SOLR-9882 exceeding timeAllowed causes ClassCastException: BasicResultContext cannot be cast to SolrDocumentList