[ROCKETMQ-161] Update runbroker.sh and runserver.sh to support user defined...

[ROCKETMQ-161] Update runbroker.sh and runserver.sh to support user defined jvm mem flag closes apache/incubator-rocketmq#87

distribution/bin/runbroker.sh

@@ -46,6 +46,7 @@ JAVA_OPT="${JAVA_OPT} -XX:MaxDirectMemorySize=15g"
 JAVA_OPT="${JAVA_OPT} -XX:-UseLargePages -XX:-UseBiasedLocking"
 JAVA_OPT="${JAVA_OPT} -Djava.ext.dirs=${BASE_DIR}/lib"
 #JAVA_OPT="${JAVA_OPT} -Xdebug -Xrunjdwp:transport=dt_socket,address=9555,server=y,suspend=n"
+JAVA_OPT="${JAVA_OPT} ${JAVA_OPT_EXT}"
 JAVA_OPT="${JAVA_OPT} -cp ${CLASSPATH}"
 
 numactl --interleave=all pwd > /dev/null 2>&1

distribution/bin/runserver.sh

@@ -43,6 +43,7 @@ JAVA_OPT="${JAVA_OPT} -XX:-OmitStackTraceInFastThrow"
 JAVA_OPT="${JAVA_OPT}  -XX:-UseLargePages"
 JAVA_OPT="${JAVA_OPT} -Djava.ext.dirs=${BASE_DIR}/lib"
 #JAVA_OPT="${JAVA_OPT} -Xdebug -Xrunjdwp:transport=dt_socket,address=9555,server=y,suspend=n"
+JAVA_OPT="${JAVA_OPT} ${JAVA_OPT_EXT}"
 JAVA_OPT="${JAVA_OPT} -cp ${CLASSPATH}"
 
 $JAVA ${JAVA_OPT} $@