nmap扫描端口导致线上大量Java服务FullGC甚至OOM 最近公司遇到了一次诡异的线上FullGC保障,多个服务几乎所有的实例集中报FullGC,个别实例甚至出现了OOM,直接被docker杀掉. 观察报警服务的log,均有大量的此log *TNonblockingServer [ERROR] Read a frame size of ****, which is bigger than the maximum allowable buffer size for ALL connectio