fixed bug #2492 (#2497)

Co-authored-by: Nmzjnumber1@163.com <mzjnumber1@163.com>
Co-authored-by: Ndailidong <dailidong66@gmail.com>

script/dolphinscheduler-daemon.sh

@@ -39,7 +39,7 @@ export JAVA_HOME=$JAVA_HOME
 #export JAVA_HOME=/opt/soft/jdk
 export HOSTNAME=`hostname`
 
-export DOLPHINSCHEDULER_PID_DIR=/tmp/
+export DOLPHINSCHEDULER_PID_DIR=$DOLPHINSCHEDULER_HOME/pid
 export DOLPHINSCHEDULER_LOG_DIR=$DOLPHINSCHEDULER_HOME/logs
 export DOLPHINSCHEDULER_CONF_DIR=$DOLPHINSCHEDULER_HOME/conf
 export DOLPHINSCHEDULER_LIB_JARS=$DOLPHINSCHEDULER_HOME/lib/*
@@ -52,7 +52,7 @@ if [ ! -d "$DOLPHINSCHEDULER_LOG_DIR" ]; then
 fi
 
 log=$DOLPHINSCHEDULER_LOG_DIR/dolphinscheduler-$command-$HOSTNAME.out
-pid=$DOLPHINSCHEDULER_LOG_DIR/dolphinscheduler-$command.pid
+pid=$DOLPHINSCHEDULER_PID_DIR/dolphinscheduler-$command.pid
 
 cd $DOLPHINSCHEDULER_HOME