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zuston pushed a commit to branch zuston-patch-1
in repository https://gitbox.apache.org/repos/asf/incubator-uniffle.git

commit 517cb1a966f798a542c1d4d8ae4e349d419ab1c3
Author: Junfan Zhang <[email protected]>
AuthorDate: Wed Mar 8 17:50:08 2023 +0800

    [#585] followup: fix the unbound Variable errors in start-shuffle-server.sh
---
 bin/start-shuffle-server.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/bin/start-shuffle-server.sh b/bin/start-shuffle-server.sh
index 829a20db..007aff88 100644
--- a/bin/start-shuffle-server.sh
+++ b/bin/start-shuffle-server.sh
@@ -67,7 +67,7 @@ JAVA_LIB_PATH="-Djava.library.path=$HADOOP_HOME/lib/native"
 echo "class path is $CLASSPATH"
 
 MAX_DIRECT_MEMORY_OPTS=""
-if [ -n "$MAX_DIRECT_MEMORY_SIZE" ]; then
+if [ -n "${MAX_DIRECT_MEMORY_SIZE:-}" ]; then
   MAX_DIRECT_MEMORY_OPTS="-XX:MaxDirectMemorySize=$MAX_DIRECT_MEMORY_SIZE"
 fi
 

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