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https://issues.apache.org/jira/browse/SPARK-16563?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15782003#comment-15782003
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vishal agrawal commented on SPARK-16563:
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Fix for this issue is causing Thrift server to hang while fetching large amount
of data from Thrift server. Raised a bug for the same SPARK-18857. kindly check.
> Repeat calling Spark SQL thrift server fetchResults return empty for
> ExecuteStatement operation
> -----------------------------------------------------------------------------------------------
>
> Key: SPARK-16563
> URL: https://issues.apache.org/jira/browse/SPARK-16563
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 1.6.2
> Reporter: Gu Huiqin Alice
> Assignee: Gu Huiqin Alice
> Priority: Minor
> Fix For: 2.0.1, 2.1.0
>
>
> Repeat calling FetchResults(... orientation=FetchOrientation.FETCH_FIRST ..)
> of spark sql thrift service will return empty set after calling
> ExecuteStatement of TCLIService.
> The bug exist in *function public RowSet getNextRowSet(FetchOrientation
> orientation, long maxRows)*
> https://github.com/apache/spark/blob/02c8072eea72425e89256347e1f373a3e76e6eba/sql/hive-thriftserver/src/main/java/org/apache/hive/service/cli/operation/SQLOperation.java#L332
> The iterator for geting result can be used for only once, so repeat calling
> FetchResults with FETCH_FIRST parameter will return empty result.
> FetchOrientation.FETCH_FIRST
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