[ 
https://issues.apache.org/jira/browse/SOLR-14200?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17020355#comment-17020355
 ] 

Zamir Paltiel commented on SOLR-14200:
--------------------------------------

Suggested fix: [^change.patch]

> Shard Tolerance in Streaming API
> --------------------------------
>
>                 Key: SOLR-14200
>                 URL: https://issues.apache.org/jira/browse/SOLR-14200
>             Project: Solr
>          Issue Type: Bug
>      Security Level: Public(Default Security Level. Issues are Public) 
>          Components: streaming expressions
>    Affects Versions: 7.4
>            Reporter: Zamir Paltiel
>            Priority: Critical
>         Attachments: change.patch
>
>
>  
> While running a search using stream expression with shards.tolerant=true, I 
> got this exception in solr.log:
> {code:java}
> 2020-01-05 08:53:18.700 ERROR (qtp773443628-26030) [c:ACCESS_1 s:zamir-vm01 
> r:core_node2 x:ACCESS_1_zamir-vm01] o.a.s.c.s.i.s.ExceptionStream 
> java.io.IOException: java.lang.IndexOutOfBoundsException: Index: 0, Size: 0   
>  at 
> org.apache.solr.client.solrj.io.stream.CloudSolrStream.constructStreams(CloudSolrStream.java:378)
>     at 
> org.apache.solr.client.solrj.io.stream.CloudSolrStream.open(CloudSolrStream.java:274)
>     at 
> org.apache.solr.client.solrj.io.stream.HashJoinStream.open(HashJoinStream.java:197)
>     at 
> org.apache.solr.client.solrj.io.stream.ExceptionStream.open(ExceptionStream.java:54)
>     at 
> org.apache.solr.handler.StreamHandler$TimerStream.open(StreamHandler.java:397)
>     at 
> org.apache.solr.client.solrj.io.stream.TupleStream.writeMap(TupleStream.java:83)
>     at 
> org.apache.solr.response.JSONWriter.writeMap(JSONResponseWriter.java:539)    
> at 
> org.apache.solr.response.TextResponseWriter.writeVal(TextResponseWriter.java:181)
>     at 
> org.apache.solr.response.JSONWriter.writeNamedListAsMapWithDups(JSONResponseWriter.java:209)
>     at 
> org.apache.solr.response.JSONWriter.writeNamedList(JSONResponseWriter.java:325)
>     at 
> org.apache.solr.response.JSONWriter.writeResponse(JSONResponseWriter.java:120)
>     at 
> org.apache.solr.response.JSONResponseWriter.write(JSONResponseWriter.java:71) 
>    at 
> org.apache.solr.response.QueryResponseWriterUtil.writeQueryResponse(QueryResponseWriterUtil.java:65)
>     at 
> org.apache.solr.servlet.HttpSolrCall.writeResponse(HttpSolrCall.java:787)    
> at org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:524)    at 
> org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:377)
>     at 
> org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:323)
>     at 
> org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1634)
>     at 
> org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:533)    
> 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:1595)
>     at 
> org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:255)
>     at 
> org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1253)
>     at 
> org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:203)
>     at 
> org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:473)    
> at 
> org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1564)
>     at 
> org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:201)
>     at 
> org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1155)
>     at 
> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:144) 
>    at 
> org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:219)
>     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:531)    at 
> org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:352)    at 
> org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:260)   
>  at 
> org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:281)
>     at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:102)    
> at org.eclipse.jetty.io.ssl.SslConnection.onFillable(SslConnection.java:291)  
>   at 
> org.eclipse.jetty.io.ssl.SslConnection$3.succeeded(SslConnection.java:151)    
> at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:102)    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:760)
>     at 
> org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:678)
>     at java.lang.Thread.run(Thread.java:818)Caused by: 
> java.lang.IndexOutOfBoundsException: Index: 0, Size: 0    at 
> java.util.ArrayList.rangeCheck(ArrayList.java:668)    at 
> java.util.ArrayList.get(ArrayList.java:444)    at 
> org.apache.solr.client.solrj.io.stream.TupleStream.getShards(TupleStream.java:152)
>     at 
> org.apache.solr.client.solrj.io.stream.CloudSolrStream.constructStreams(CloudSolrStream.java:363)
>     ... 53 more{code}



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