Github user gatorsmile commented on a diff in the pull request:
    --- Diff: 
sql/catalyst/src/main/scala/org/apache/spark/sql/internal/SQLConf.scala ---
    @@ -156,6 +156,15 @@ object SQLConf {
    +    .internal()
    +    .doc("When true (default), if the other options are not available, 
fallback to try and use " +
    +      "BroadcastNestedLoopJoin as join strategy. This can cause OOM which 
can be a problem " +
    +      "in some scenarios, eg. when running the thriftserver. Turn to false 
to disable it: an " +
    +      "AnalysisException will be thrown.")
    --- End diff --
    I do not think this can resolve the issue. The fix is in a wrong direction.


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