From f1b826ce70107298e1c72441928cc05abe1e2bd9 Mon Sep 17 00:00:00 2001 From: Ashutosh Chauhan Date: Tue, 27 Aug 2019 15:01:10 -0700 Subject: [PATCH] HIVE-22151 : Turn off hybrid grace hash join by default --- common/src/java/org/apache/hadoop/hive/conf/HiveConf.java | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/common/src/java/org/apache/hadoop/hive/conf/HiveConf.java b/common/src/java/org/apache/hadoop/hive/conf/HiveConf.java index 69408f6de9..97cffff256 100644 --- a/common/src/java/org/apache/hadoop/hive/conf/HiveConf.java +++ b/common/src/java/org/apache/hadoop/hive/conf/HiveConf.java @@ -1736,7 +1736,7 @@ private static void populateLlapDaemonVarsSet(Set llapDaemonVarsSetLocal "Only works on Tez and Spark, because memory-optimized hashtable cannot be serialized."), HIVEMAPJOINOPTIMIZEDTABLEPROBEPERCENT("hive.mapjoin.optimized.hashtable.probe.percent", (float) 0.5, "Probing space percentage of the optimized hashtable"), - HIVEUSEHYBRIDGRACEHASHJOIN("hive.mapjoin.hybridgrace.hashtable", true, "Whether to use hybrid" + + HIVEUSEHYBRIDGRACEHASHJOIN("hive.mapjoin.hybridgrace.hashtable", false, "Whether to use hybrid" + "grace hash join as the join method for mapjoin. Tez only."), HIVEHYBRIDGRACEHASHJOINMEMCHECKFREQ("hive.mapjoin.hybridgrace.memcheckfrequency", 1024, "For " + "hybrid grace hash join, how often (how many rows apart) we check if memory is full. " + -- 2.14.3 (Apple Git-98)