Github user yhuai commented on a diff in the pull request:
https://github.com/apache/spark/pull/13310#discussion_r64671030
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/internal/SQLConf.scala ---
@@ -70,6 +70,27 @@ object SQLConf {
.intConf
.createWithDefault(10)
+ val ALLOW_MULTIPLE_CONTEXTS =
SQLConfigBuilder("spark.sql.allowMultipleContexts")
+ .doc("When set to true, creating multiple SQLContexts/HiveContexts is
allowed. " +
+ "When set to false, only one SQLContext/HiveContext is allowed to be
created " +
+ "through the constructor (new SQLContexts/HiveContexts created
through newSession " +
+ "method is allowed). Please note that this conf needs to be set in
Spark Conf. Once " +
+ "a SQLContext/HiveContext has been created, changing the value of
this conf will not " +
+ "have effect.")
+ .booleanConf
+ .createWithDefault(false)
+
+ val ALLOW_MULTIPLE_CONTEXTS_ERROR_MESSAGE =
+ SQLConfigBuilder("spark.sql.allowMultipleContexts.errorMessage")
--- End diff --
This name is not great. I am open to any suggestion.
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