I've not been able to replicate the null pointer exception being seen. I created a new collection called EventsAndDCF with 4 shards and 3 replicas using a simple conf $> /tmp/solr-go/bin/solr/bin/solr create -p 30001 -c EventsAndDCF -d ../../../test/main/conf/sample -n EventsAndDCF -shards 4 -replicationFactor 3
and then sent the same curl command Peter is sending $> curl --data-urlencode 'expr=search(EventsAndDCF,q="*:*",fl="AccessPath",sort="AccessPath asc",qt="/export")' "http://localhost:30001/solr/EventsAndDCF/stream"; Because I haven't indexed any data into the collection I get back an expected error that the sort field cannot be found, but this is *after* the parsing of the param expr occurs so I know I cannot replicate the exception you appear to be seeing. I 2nd Joel's question about being in SolrCloud mode - that is a requirement of streaming. - Dennis On Sun, Jun 26, 2016 at 8:51 PM, Joel Bernstein <joels...@gmail.com> wrote: > The NPE is showing that the expression clause is Null. Are you in SolrCloud > mode? This is required for Streaming Expressions. > > I would try sending the query via your browser also, just to make sure > there isn't something we're missing in the curl syntax. > > You can call the /stream handler directly and pass the expr parameter. Most > browsers will url encode the expression, but to be sure you can url encode > the expression before sending it down. > > Joel Bernstein > http://joelsolr.blogspot.com/ > > On Sat, Jun 25, 2016 at 5:36 PM, Peter Sh <peshash...@gmail.com> wrote: > > > I've got an exception below running > > curl --data-urlencode > > 'expr=search(EventsAndDCF,q="*:*",fl="AccessPath",sort="AccessPath > > asc",qt="/export")' "http://localhost:8983/solr/EventsAndDCF/stream"; > > Solr responce: > > {"result-set":{"docs":[ > > {"EXCEPTION":null,"EOF":true}]}} > > > > > > My collection EventsAndDCF exists. and I succeed to run GET queries like: > > > > > http://localhost:8983/solr/EventsAndDCF/export?fl=AccessPath&q=*:*&sort=AccessPath > > desc&wt=json > > > > Solr version: 6.0.1. Single node > > > > > > > > 2016-06-25 21:15:44.147 ERROR (qtp1514322932-16) [ x:EventsAndDCF] > > o.a.s.h.StreamHandler java.lang.NullPointerException > > at > > > > > org.apache.solr.client.solrj.io.stream.expr.StreamExpressionParser.generateStreamExpression(StreamExpressionParser.java:46) > > at > > > > > org.apache.solr.client.solrj.io.stream.expr.StreamExpressionParser.parse(StreamExpressionParser.java:37) > > at > > > > > org.apache.solr.client.solrj.io.stream.expr.StreamFactory.constructStream(StreamFactory.java:178) > > at > > > > > org.apache.solr.handler.StreamHandler.handleRequestBody(StreamHandler.java:164) > > at > > > > > org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:155) > > at org.apache.solr.core.SolrCore.execute(SolrCore.java:2053) > > at org.apache.solr.servlet.HttpSolrCall.execute(HttpSolrCall.java:652) > > at org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:460) > > at > > > > > org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:229) > > at > > > > > org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:184) > > at > > > > > org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1668) > > at > > > org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:581) > > 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:1160) > > at > > org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:511) > > at > > > > > org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185) > > at > > > > > org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1092) > > 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.server.Server.handle(Server.java:518) > > at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:308) > > at > > > org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:244) > > 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.produceAndRun(ExecuteProduceConsume.java:246) > > at > > > > > org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.run(ExecuteProduceConsume.java:156) > > at > > > > > org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:654) > > at > > > > > org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:572) > > at java.lang.Thread.run(Unknown Source) > > > > 2016-06-25 21:15:44.147 INFO (qtp1514322932-16) [ x:EventsAndDCF] > > o.a.s.c.S.Request [EventsAndDCF] webapp=/solr path=/stream > > > > > params={'expr=search(EventsAndDCF,q%3D*:*,fl%3DAccessPath,sort%3DAccessPath+asc,qt%3D/export)'} > > status=0 QTime=2 > > >
