kestrel 守护启动
/usr/local/bin/daemon -n kestrel -F /var/run/kestrel/kestrel_api.pid --stdout=/opt/log/kestrel_api/stdout --stderr=/opt/log/kestrel_api/error -- /usr/local/jdk/bin/java -Dstage=api -server -verbosegc -XX:+PrintGCDetails -XX:+PrintGCTimeStamps -XX:+PrintGCDateStamps -XX:+PrintTenuringDistribution -XX:+UseConcMarkSweepGC -XX:+UseParNewGC -Xmx2048m -Xms1024m -XX:NewSize=256m -jar /opt/www/kestrel/kestrel-1.2.7-SNAPSHOT.jar
