From 107a5ca879aab6331b03c9080f0c0a782f060589 Mon Sep 17 00:00:00 2001 From: root Date: Sun, 23 Sep 2012 06:06:12 +0000 Subject: Make default number of parallel fetches slightly smaller since it doesn't seem to hurt performance much and it will cause slightly less GC. --- core/src/main/scala/spark/storage/BlockManager.scala | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/core/src/main/scala/spark/storage/BlockManager.scala b/core/src/main/scala/spark/storage/BlockManager.scala index 550c937ac4..15748b70d5 100644 --- a/core/src/main/scala/spark/storage/BlockManager.scala +++ b/core/src/main/scala/spark/storage/BlockManager.scala @@ -631,7 +631,7 @@ class BlockManager(val master: BlockManagerMaster, val serializer: Serializer, m object BlockManager { def getNumParallelFetchesFromSystemProperties(): Int = { - System.getProperty("spark.blockManager.parallelFetches", "8").toInt + System.getProperty("spark.blockManager.parallelFetches", "4").toInt } def getMaxMemoryFromSystemProperties(): Long = { -- cgit v1.2.3