From 1e4013571b18ca337ea664838f7f8e781c8de7aa Mon Sep 17 00:00:00 2001 From: Tao Wang Date: Wed, 10 Aug 2016 22:30:18 -0700 Subject: [PATCH] [SPARK-17010][MINOR][DOC] Wrong description in memory management document ## What changes were proposed in this pull request? change the remain percent to right one. ## How was this patch tested? Manual review Author: Tao Wang Closes #14591 from WangTaoTheTonic/patch-1. (cherry picked from commit 7a6a3c3fbcea889ca20beae9d4198df2fe53bd1b) Signed-off-by: Reynold Xin --- docs/tuning.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/docs/tuning.md b/docs/tuning.md index 1ed14091c0546..976f2eb8a7b23 100644 --- a/docs/tuning.md +++ b/docs/tuning.md @@ -115,7 +115,7 @@ Although there are two relevant configurations, the typical user should not need as the default values are applicable to most workloads: * `spark.memory.fraction` expresses the size of `M` as a fraction of the (JVM heap space - 300MB) -(default 0.6). The rest of the space (25%) is reserved for user data structures, internal +(default 0.6). The rest of the space (40%) is reserved for user data structures, internal metadata in Spark, and safeguarding against OOM errors in the case of sparse and unusually large records. * `spark.memory.storageFraction` expresses the size of `R` as a fraction of `M` (default 0.5).