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diff --git a/docs/sql-programming-guide.md b/docs/sql-programming-guide.md index 6e02d6564b..e347754055 100644 --- a/docs/sql-programming-guide.md +++ b/docs/sql-programming-guide.md @@ -2051,6 +2051,20 @@ options. # Migration Guide +## Upgrading From Spark SQL 1.5 to 1.6 + + - From Spark 1.6, by default the Thrift server runs in multi-session mode. Which means each JDBC/ODBC + connection owns a copy of their own SQL configuration and temporary function registry. Cached + tables are still shared though. If you prefer to run the Thrift server in the old single-session + mode, please set option `spark.sql.hive.thriftServer.singleSession` to `true`. You may either add + this option to `spark-defaults.conf`, or pass it to `start-thriftserver.sh` via `--conf`: + + {% highlight bash %} + ./sbin/start-thriftserver.sh \ + --conf spark.sql.hive.thriftServer.singleSession=true \ + ... + {% endhighlight %} + ## Upgrading From Spark SQL 1.4 to 1.5 - Optimized execution using manually managed memory (Tungsten) is now enabled by default, along with |