From 1eaed9925bb39e4f1108c673b7eefad5a7708cfb Mon Sep 17 00:00:00 2001
From: Michael Stack <stack@apache.org>
Date: Wed, 25 Jul 2012 13:45:51 +0000
Subject: [PATCH] HBASE-6450 HBase startup should be with MALLOC_MAX_ARENA set

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1365584 13f79535-47bb-0310-9956-ffa450edef68
---
 bin/hbase-config.sh | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/bin/hbase-config.sh b/bin/hbase-config.sh
index 6df845af801..b0ac8c08d7e 100644
--- a/bin/hbase-config.sh
+++ b/bin/hbase-config.sh
@@ -104,6 +104,10 @@ if [ -f "${HBASE_CONF_DIR}/hbase-env.sh" ]; then
   . "${HBASE_CONF_DIR}/hbase-env.sh"
 fi
 
+# Newer versions of glibc use an arena memory allocator that causes virtual
+# memory usage to explode. Tune the variable down to prevent vmem explosion.
+export MALLOC_ARENA_MAX=${MALLOC_ARENA_MAX:-4}
+
 if [ -z "$JAVA_HOME" ]; then
   for candidate in \
     /usr/lib/jvm/java-6-sun \