From 50b5e3e05e875ad8928a8c1a4b31f7fbeeadf339 Mon Sep 17 00:00:00 2001 From: Ashutosh Chauhan Date: Fri, 10 Aug 2018 13:47:44 -0700 Subject: [PATCH] HIVE-20364 : Update default for hive.map.aggr.hash.min.reduction --- 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 929feb6806..d406f51443 100644 --- a/common/src/java/org/apache/hadoop/hive/conf/HiveConf.java +++ b/common/src/java/org/apache/hadoop/hive/conf/HiveConf.java @@ -1683,7 +1683,7 @@ private static void populateLlapDaemonVarsSet(Set llapDaemonVarsSetLocal "How many rows with the same key value should be cached in memory per smb joined table."), HIVEGROUPBYMAPINTERVAL("hive.groupby.mapaggr.checkinterval", 100000, "Number of rows after which size of the grouping keys/aggregation classes is performed"), - HIVEMAPAGGRHASHMEMORY("hive.map.aggr.hash.percentmemory", (float) 0.5, + HIVEMAPAGGRHASHMEMORY("hive.map.aggr.hash.percentmemory", (float) 0.99, "Portion of total memory to be used by map-side group aggregation hash table"), HIVEMAPJOINFOLLOWEDBYMAPAGGRHASHMEMORY("hive.mapjoin.followby.map.aggr.hash.percentmemory", (float) 0.3, "Portion of total memory to be used by map-side group aggregation hash table, when this group by is followed by map join"), -- 2.14.3 (Apple Git-98)