Github user sudheeshkatkam commented on a diff in the pull request:
https://github.com/apache/drill/pull/547#discussion_r71633187
--- Diff: distribution/src/resources/drill-config.sh ---
@@ -193,21 +366,24 @@ if $is_cygwin; then
DRILL_LOG_DIR=`cygpath -w "$DRILL_LOG_DIR"`
CP=`cygpath -w -p "$CP"`
if [ -z "$HADOOP_HOME" ]; then
- HADOOP_HOME=${DRILL_HOME}/winutils
+ export HADOOP_HOME=${DRILL_HOME}/winutils
fi
fi
# make sure allocator chunks are done as mmap'd memory (and reduce arena
overhead)
-export MALLOC_ARENA_MAX=4
+# 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}
export MALLOC_MMAP_THRESHOLD_=131072
export MALLOC_TRIM_THRESHOLD_=131072
export MALLOC_TOP_PAD_=131072
export MALLOC_MMAP_MAX_=65536
# Variables exported form this script
-export HADOOP_HOME
export is_cygwin
export DRILL_HOME
export DRILL_CONF_DIR
export DRILL_LOG_DIR
export CP
+export JAVA_HOME
+export JAVA
--- End diff --
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