Hi solr-users!
I have a Streaming Expression which joins two search SE, one of them is
evaluated on a cartesianProduct SE.
I´am trying to run that in parallel mode but it does not work.
Trying a very simple parallel I can see that it works:
parallel(
search(
But this one I´m trying to run, doesn´t works:
parallel(
rollup(
sort(
hashJoin(
search(
hashed=cartesianProduct(
search(
The simplified version of the above, doesn´t works too:
parallel(
cartesianProduct(
search(
The error is bellow, do you have any hint on how can I fix the expression?
Thank you.
java.io.IOException: java.lang.NullPointerException
at
org.apache.solr.client.solrj.io.stream.ParallelStream.constructStreams(ParallelStream.java:277)
at
org.apache.solr.client.solrj.io.stream.CloudSolrStream.open(CloudSolrStream.java:305)
at
org.apache.solr.client.solrj.io.stream.ExceptionStream.open(ExceptionStream.java:51)
at
org.apache.solr.handler.StreamHandler$TimerStream.open(StreamHandler.java:535)
at
org.apache.solr.client.solrj.io.stream.TupleStream.writeMap(TupleStream.java:83)
at
org.apache.solr.response.JSONWriter.writeMap(JSONResponseWriter.java:547)
at
org.apache.solr.response.TextResponseWriter.writeVal(TextResponseWriter.java:193)
at
org.apache.solr.response.JSONWriter.writeNamedListAsMapWithDups(JSONResponseWriter.java:209)
at
org.apache.solr.response.JSONWriter.writeNamedList(JSONResponseWriter.java:325)
at
org.apache.solr.response.JSONWriter.writeResponse(JSONResponseWriter.java:120)
at
org.apache.solr.response.JSONResponseWriter.write(JSONResponseWriter.java:71)
at
org.apache.solr.response.QueryResponseWriterUtil.writeQueryResponse(QueryResponseWriterUtil.java:65)
at
org.apache.solr.servlet.HttpSolrCall.writeResponse(HttpSolrCall.java:809)
at org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:538)
at
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:361)
at
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:305)
at
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1691)
at
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:582)
at
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
at
org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548)
at
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:226)
at
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1180)
at
org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:512)
at
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)
at
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1112)
at
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
at
org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:213)
at
org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:119)
at
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:134)
at
org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:335)
at
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:134)
at org.eclipse.jetty.server.Server.handle(Server.java:534)
at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:320)
at
org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:251)
at
org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:273)
at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:95)
at
org.eclipse.jetty.io.SelectChannelEndPoint$2.run(SelectChannelEndPoint.java:93)
at
org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.executeProduceConsume(ExecuteProduceConsume.java:303)
at
org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.produceConsume(ExecuteProduceConsume.java:148)
at
org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.run(ExecuteProduceConsume.java:136)
at
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:671)
at
org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:589)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.NullPointerException
at
org.apache.solr.client.solrj.io.stream.CartesianProductStream.toExpression(CartesianProductStream.java:154)
at
org.apache.solr.client.solrj.io.stream.CartesianProductStream.toExpression(CartesianProductStream.java:134)
at
org.apache.solr.client.solrj.io.stream.CartesianProductStream.toExpression(CartesianProductStream.java:44)
at
org.apache.solr.client.solrj.io.stream.ParallelStream.constructStreams(ParallelStream.java:255)
