Revert changes to ./src/external/run_test.sh from commit b589ba9

Author: hzhan80

src/external/run_test.sh

@@ -28,12 +28,24 @@ cd -
 
 destroy_worker()
 {
-    PID=$(pidof WorkerServer_9090) || true
-    echo ${PID}
-    if [ ! -z "${PID}" ] ; then
-        kill -9 ${PID}
-    fi
-    sleep 2s
+    STATUS=$(lsof -i:9090 | tail -n 1 | awk {'print $NF'})
+
+    while [ "${STATUS}" != "EMPTY" ]
+        do
+            if [ "${STATUS}" == "(LISTEN)" ] ; then
+                echo "LISTEN"
+                PID=$(lsof -i:9090 | tail -n 1 | awk {'print $2'})
+                echo ${PID}
+                if [ ! -z "${PID}" ] ; then
+                    kill -9 ${PID}
+                    STATUS="EMPTY"
+                fi
+                sleep 2s
+            else
+                echo "EMPTY"
+                STATUS="EMPTY"
+                fi
+        done
 }
 
 if [ "${REPO}" = "oss" ] ; then
@@ -63,6 +75,7 @@ if [ "${REPO}" = "oss" ] ; then
 
     # distributed_encoder test
     ################################
+    sudo yum install lsof -y
 
     cd distributed_encoder
     cp ../../../distributed_encoder/test/*265 .