From 50415d68e21a8b4e76917407f411230988df9c07 Mon Sep 17 00:00:00 2001
From: cuizp <cuizp@jpush.cn>
Date: Wed, 11 Jul 2018 18:01:44 +0800
Subject: [PATCH] startup script supports reading environment variable for some
 param

---
 bin/flume-ng | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/bin/flume-ng b/bin/flume-ng
index 9bea01f5f8..3d80c07cd1 100755
--- a/bin/flume-ng
+++ b/bin/flume-ng
@@ -220,10 +220,10 @@ run_flume() {
 ################################
 
 # set default params
-FLUME_CLASSPATH=""
-FLUME_JAVA_LIBRARY_PATH=""
-JAVA_OPTS="-Xmx20m"
-LD_LIBRARY_PATH=""
+FLUME_CLASSPATH=${FLUME_CLASSPATH:-""}
+FLUME_JAVA_LIBRARY_PATH=${FLUME_JAVA_LIBRARY_PATH:-""}
+JAVA_OPTS=${JAVA_OPTS:-"-Xmx20m"}
+LD_LIBRARY_PATH=${LD_LIBRARY_PATH:-""}
 
 opt_conf=""
 opt_classpath=""