1.线上nohup日记过多导致服务器磁盘100%
后台运行jar包导致生成大量nohup日记，强行删除nohup文件会导致假删除，实际还是占用磁盘空间
解决方案：
不打印nohup日记，由logback来打印
nohup java -Xms512M -Xmx2048M -Xmn512M -Xss1M -XX:NewRatio=8 -jar /data/smart_campus/canteen/smart_campus_canteen_back-1.0-bate.jar -Djava.security.egd=file:/dev/./urandom –spring.config.location=/data/smart_campus/canteen/config/application.properties -Djava.awt.headless=true export _JAVA_OPTIONS=’ -XX:-UseCompressedClassPointers ‘ >/dev/null 2>&1 &