From 4e734a03c1ca406eeee17595cc9b8c1e37e31f6b Mon Sep 17 00:00:00 2001 From: Ashutosh Chauhan Date: Sun, 16 Sep 2018 23:24:12 -0700 Subject: [PATCH] HIVE-20572 : Change default value of hive.tez.llap.min.reducer.per.executor --- 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 3e38fe66c5..2fbbf62e6f 100644 --- a/common/src/java/org/apache/hadoop/hive/conf/HiveConf.java +++ b/common/src/java/org/apache/hadoop/hive/conf/HiveConf.java @@ -3750,7 +3750,7 @@ private static void populateLlapDaemonVarsSet(Set llapDaemonVarsSetLocal "Turn on Tez' auto reducer parallelism feature. When enabled, Hive will still estimate data sizes\n" + "and set parallelism estimates. Tez will sample source vertices' output sizes and adjust the estimates at runtime as\n" + "necessary."), - TEZ_LLAP_MIN_REDUCER_PER_EXECUTOR("hive.tez.llap.min.reducer.per.executor", 0.95f, + TEZ_LLAP_MIN_REDUCER_PER_EXECUTOR("hive.tez.llap.min.reducer.per.executor", 0.33f, "If above 0, the min number of reducers for auto-parallelism for LLAP scheduling will\n" + "be set to this fraction of the number of executors."), TEZ_MAX_PARTITION_FACTOR("hive.tez.max.partition.factor", 2f, -- 2.14.3 (Apple Git-98)